Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    LT3080EDD Search Results

    SF Impression Pixel

    LT3080EDD Price and Stock

    Analog Devices Inc LT3080EDD-TRPBF

    IC REG LINEAR POS ADJ 1.1A 8DFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT3080EDD-TRPBF Cut Tape 3,427 1
    • 1 $7.23
    • 10 $4.929
    • 100 $3.6671
    • 1000 $2.98286
    • 10000 $2.98286
    Buy Now
    LT3080EDD-TRPBF Digi-Reel 3,427 1
    • 1 $7.23
    • 10 $4.929
    • 100 $3.6671
    • 1000 $2.98286
    • 10000 $2.98286
    Buy Now
    LT3080EDD-TRPBF Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.85
    Buy Now

    Analog Devices Inc LT3080EDD-1-TRPBF

    IC REG LINEAR POS ADJ 1.1A 8DFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT3080EDD-1-TRPBF Cut Tape 3,080 1
    • 1 $7.3
    • 10 $4.979
    • 100 $3.7037
    • 1000 $3.0127
    • 10000 $3.0127
    Buy Now
    LT3080EDD-1-TRPBF Digi-Reel 3,080 1
    • 1 $7.3
    • 10 $4.979
    • 100 $3.7037
    • 1000 $3.0127
    • 10000 $3.0127
    Buy Now
    LT3080EDD-1-TRPBF Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.85
    Buy Now

    Analog Devices Inc LT3080EDD-PBF

    IC REG LINEAR POS ADJ 1.1A 8DFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT3080EDD-PBF Tube 1,193 1
    • 1 $7.3
    • 10 $4.979
    • 100 $3.7037
    • 1000 $3.0127
    • 10000 $2.85
    Buy Now

    Analog Devices Inc LT3080EDD-1-PBF

    IC REG LINEAR POS ADJ 1.1A 8DFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT3080EDD-1-PBF Tube 747 1
    • 1 $7.05
    • 10 $4.682
    • 100 $7.05
    • 1000 $2.85
    • 10000 $2.85
    Buy Now

    Analog Devices Inc LT3080EDD

    IC REG LINEAR POS ADJ 1.1A 8DFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT3080EDD Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Quest Components LT3080EDD 80
    • 1 $13.0365
    • 10 $11.588
    • 100 $10.7189
    • 1000 $10.7189
    • 10000 $10.7189
    Buy Now

    LT3080EDD Datasheets (12)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    LT3080EDD Linear Technology/Analog Devices Integrated Circuits (ICs) - PMIC - Voltage Regulators - Linear - IC REG LINEAR POS ADJ 1.1A 8DFN Original PDF
    LT3080EDD#PBF Linear Technology LT3080 - IC VREG 0 V-36 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8, 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-1, DFN-8, Adjustable Positive Single Output LDO Regulator Original PDF
    LT3080EDD#PBF Linear Technology Adjustable 1.1A Single Resistor Low Dropout Regulator; Package: DFN; No of Pins: 8; Temperature Range: -40°C to +125°C Original PDF
    LT3080EDD#TRPBF Linear Technology LT3080 - IC VREG 0 V-36 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8, 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-1, DFN-8, Adjustable Positive Single Output LDO Regulator Original PDF
    LT3080EDD#TRPBF Linear Technology Adjustable 1.1A Single Resistor Low Dropout Regulator; Package: DFN; No of Pins: 8; Temperature Range: -40°C to +125°C Original PDF
    LT3080EDD-1 Linear Technology LT3080 - IC VREG 0 V-36 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8, 3 X 3 MM, PLASTIC, MO-229WEED-1, DFN-8, Adjustable Positive Single Output LDO Regulator Original PDF
    LT3080EDD-1#PBF Linear Technology LT3080 - IC VREG 0 V-36 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8, 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-1, DFN-8, Adjustable Positive Single Output LDO Regulator Original PDF
    LT3080EDD-1#PBF Linear Technology Adjustable 1.1A Single Resistor Low Dropout Regulator; Package: DFN; No of Pins: 8; Temperature Range: -40°C to +125°C Original PDF
    LT3080EDD-1#PBF Linear Technology PMIC - Voltage Regulators - Linear (LDO), Integrated Circuits (ICs), IC REG LDO ADJ 1.1A 8DFN Original PDF
    LT3080EDD-1#TRPBF Linear Technology LT3080 - IC VREG 0 V-36 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8, 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-1, DFN-8, Adjustable Positive Single Output LDO Regulator Original PDF
    LT3080EDD-1#TRPBF Linear Technology Adjustable 1.1A Single Resistor Low Dropout Regulator; Package: DFN; No of Pins: 8; Temperature Range: -40°C to +125°C Original PDF
    LT3080EDD-1#TRPBF Linear Technology PMIC - Voltage Regulators - Linear (LDO), Integrated Circuits (ICs), IC REG LDO ADJ 1.1A 8DFN Original PDF

    LT3080EDD Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    lt3080-1

    Abstract: LT3080 LT3080EDD-1 DC1368
    Text: QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1368A ADJUSTABLE LDO LINEAR REGULATORS IN PARALLEL LT3080EDD-1 DESCRIPTION Demonstration circuit 1368A shows adjustable linear regulators in parallel using LT3080-1. Architected as a precision current source and voltage follower, it


    Original
    PDF LT3080EDD-1 LT3080-1. LT3080-1 LT3080 LT3080EDD-1 DC1368

    LT3080

    Abstract: pcb thermal Design guide trace pcb thermal Design guide pcb trace LT3080EDD DSASW003201
    Text: QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1294A ADJUSTABLE LDO LINEAR REGULATORS IN PARALLEL LT3080EDD DESCRIPTION Demonstration circuit 1294A shows adjustable linear regulators in parallel using LT3080. Architected as a precision current source and voltage follower, it allows this new regulator to be used in many applications requiring high current, adjustability to zero output, and no heat sink. Also the device brings out the


    Original
    PDF LT3080EDD LT3080. LT3080 pcb thermal Design guide trace pcb thermal Design guide pcb trace LT3080EDD DSASW003201

    LT3080

    Abstract: LT3080EDD
    Text: QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 995A ADJUSTABLE LDO LINEAR REGULATOR LT3080EDD DESCRIPTION Demonstration circuit 995A is an adjustable 1.1A linear regulator featuring LT 3080. Architected as a precision current source and voltage follower, it allows this new regulator to be used in many applications requiring high current, adjustability to zero output, and no heat sink. Also the device brings out the


    Original
    PDF LT3080EDD LT3080 DC99the LT3080. LT3080EDD

    1620a 17

    Abstract: block diagram of manual voltage stabilizer RES 0402 10K 5 W0508L8ZD225MAT1A R83-R85 CRCW0402330KFKEA XFMR1 lt3080 nrc02f1000trf CRCW0402100KJNED
    Text: DEMO MANUAL DC1620A LTC2185, LTC2184, LTC2183, LTC2182, LTC2181, LTC2180, LTC2188, LTC2145-14/-12, LTC2144-14/-12, LTC2143-14/-12, LTC2142-14/-12, LTC2141-14/-12, LTC2140-14/-12, LTC2270: 16-/14-/12-Bit, 20Msps to 125Msps Dual ADCs DESCRIPTION Demonstration circuit 1620A supports a family of


    Original
    PDF DC1620A LTC2185, LTC2184, LTC2183, LTC2182, LTC2181, LTC2180, LTC2188, LTC2145-14/-12, LTC2144-14/-12, 1620a 17 block diagram of manual voltage stabilizer RES 0402 10K 5 W0508L8ZD225MAT1A R83-R85 CRCW0402330KFKEA XFMR1 lt3080 nrc02f1000trf CRCW0402100KJNED

    LT3080Q

    Abstract: RS/3080 ic 8 pin 3080 ic 8 pin lt3080iq 11AIl 3080 MARKING ltcbm
    Text: LT3080 Adjustable1.1A Single Resistor Low Dropout Regulator Description Features Outputs May be Paralleled for Higher Current and Heat Spreading n Output Current: 1.1A n Single Resistor Programs Output Voltage n 1% Initial Accuracy of SET Pin Current n Output Adjustable to 0V


    Original
    PDF 100kHz) 350mV OT-223 O-220 OT-223 LT3080 10-Lead LT1976 LTC3414 LTC3406/LTC3406B LT3080Q RS/3080 ic 8 pin 3080 ic 8 pin lt3080iq 11AIl 3080 MARKING ltcbm

    G1754

    Abstract: buz11 equivalent constant current source with 500mA tpo610 LT3080 LT 543 IC detail dd pak ltc Q LT1085 LT1086 LT1764A
    Text: LT3080 Adjustable1.1A Single Resistor Low Dropout Regulator FEATURES DESCRIPTION n The LT 3080 is a 1.1A low dropout linear regulator that can be paralleled to increase output current or spread heat in surface mounted boards. Architected as a precision current source and voltage follower allows this new regulator


    Original
    PDF LT3080 LTC3406/LTC3406B 600mA LTC3411 10-Lead 3080fa G1754 buz11 equivalent constant current source with 500mA tpo610 LT3080 LT 543 IC detail dd pak ltc Q LT1085 LT1086 LT1764A

    LA25-P

    Abstract: DC1931 SEAM-10X40 LTM9013
    Text: DEMO MANUAL DC1931B LTM9013 300MHz Wideband/DPD Receiver Description Demonstration circuit DC1931 is a 300MHz wideband/ digital pre-distortion DPD receiver subsystem featuring the LTM 9013. The DC1931 card is designed to plug into the DC1371 data acquisition demo board. It is configured


    Original
    PDF DC1931B LTM9013 300MHz DC1931 DC1371 DC1931; LTM9013 dc1931bfa LA25-P SEAM-10X40

    DC1075

    Abstract: No abstract text available
    Text: DEMO MANUAL DC1762A LTC2165, LTC2164, LTC2163 LTC2162, LTC2161, LTC2160, LTC2159, LTC2269 16-Bit, 20Msps to125Msps ADCs Description Demonstration circuit 1762A supports a family of 16-Bit 20Msps to 125Msps ADCs. Each assembly features one of the following devices: LTC 2165, LTC2164, LTC2163,


    Original
    PDF DC1762A LTC2165, LTC2164, LTC2163 LTC2162, LTC2161, LTC2160, LTC2159, LTC2269 16-Bit, DC1075

    schematic diagram atx Power supply 500w

    Abstract: pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 Digital Signal Processors, iCoupler , iMEMS® and iSensor . . . . . 805, 2707, 2768-2769 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-568 RF Connectors . . . . . . . . . . . . . . . . . . . . . . Pages 454-455


    Original
    PDF P462-ND P463-ND LNG295LFCP2U LNG395MFTP5U US2011) schematic diagram atx Power supply 500w pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS

    Arduino Mega2560

    Abstract: 13001 S 6D TRANSISTOR arduino uno rev 3 agilent optical encoder 9988 MZ 13001 TRANSISTOR arduino mega 2650 skiip 613 gb 123 ct arduino sound sensor module pic arduino nano mc34063l
    Text: ND3% BASE1 XXXX2108-0010-1-P 10 TSQ: 3001 CMS: CMS-USM TS host OP: NN COMP: 15-07-11 Hour: 13:07 TS:TS date TS time MCUS, MPUS, DSPS & DEVELOPMENT TOOLS Find Datasheets Online 8-BIT MCUS & DEVELOPMENT TOOLS 1 PSoC 3 DEVELOPMENT KITS ARDUINO MCU DEVLOPMENT PLATFORM


    Original
    PDF CY8C38 CY8C29 incl795 12T9797 12T9804 12T9803 12T9800 12T9802 12T9801 12T9805 Arduino Mega2560 13001 S 6D TRANSISTOR arduino uno rev 3 agilent optical encoder 9988 MZ 13001 TRANSISTOR arduino mega 2650 skiip 613 gb 123 ct arduino sound sensor module pic arduino nano mc34063l

    Untitled

    Abstract: No abstract text available
    Text: LT3080-1 Parallelable 1.1A Adjustable Single Resistor Low Dropout Regulator DESCRIPTION FEATURES n n n n n n n n n n n n n Internal Ballast Resistor Permits Direct Connection to Power Plane for Higher Current and Heat Spreading Output Current: 1.1A Single Resistor Programs Output Voltage


    Original
    PDF LT3080-1 100kHz) 350mV LT3080-1 LTC3406/LTC3406B 600mA LTC3411 10-Lead 30801fb

    88E1111

    Abstract: LTI-SASF546-P26-X1 Marvell PHY 88E1111 layout Marvell 88E1111 trace layout guidelines 88E1111-B2 -BAB-1I000 Marvell PHY 88E1111 Datasheet Marvell rgmii layout guide 48F4400P0VB00 EVALUATION BOARD 88E1111 88E1111 PHY registers map
    Text: Transceiver Signal Integrity Development Kit, Stratix IV GT Edition Reference Manual 101 Innovation Drive San Jose, CA 95134 www.altera.com Document Version: Document Date: 1.0 December 2009 Copyright 2009 Altera Corporation. All rights reserved. Altera, The Programmable Solutions Company, the stylized Altera logo, specific device designations, and all other


    Original
    PDF

    SEAM-10X40PIN

    Abstract: SEAM-10X40 BPF filter rf GHz la25p DA1213 LTM9013
    Text: LTM9013 300MHz Digital Predistortion Receiver FEATURES DESCRIPTION Integrated I/Q Demodulator, IF Amplifier, and Dual 14-Bit, 310Msps High Speed ADC n External Highpass Filter Allows Bandwidth Adjustment n 300MHz Lowpass Filter for Each Channel n RF Input Frequency Range: 0.7GHz to 4GHz


    Original
    PDF LTM9013 300MHz 14-Bit, 310Msps 66dBc n15mm 800MHz, SEAM-10X40PIN SEAM-10X40 BPF filter rf GHz la25p DA1213

    LTM9011IY-14

    Abstract: LTM9011-14 LTM9010-14 LTM9009C LTM9010C LTM9011C LTM9011I lt3080 1k11 g2766
    Text: LTM9011-14/ LTM9010-14/LTM9009-14 14-Bit, 125Msps/105Msps/ 80Msps Low Power Octal ADCs Features Description 8-Channel Simultaneous Sampling ADC n 73.1dB SNR n 88dB SFDR n Low Power: 140mW/113mW/94mW per Channel n Single 1.8V Supply n Serial LVDS Outputs: 1 or 2 Bits per Channel


    Original
    PDF LTM9011-14/ LTM9010-14/LTM9009-14 14-Bit, 125Msps/105Msps/ 80Msps 140mW/113mW/94mW n800MHz n140-Pin 9011-14/LTM9010-14/LTM9009-14 14-bit LTM9011IY-14 LTM9011-14 LTM9010-14 LTM9009C LTM9010C LTM9011C LTM9011I lt3080 1k11 g2766

    SDI-12 circuit

    Abstract: 1620a 17 FIN1108 R5910 SCK SDA WP 1213D EN56 EN78 D123D lt3080
    Text: 5 4 3 2 1 REVISION HISTORY VDD ECO R17 100 0201 CLARENCE M. GND 10 1% 1 2 3 4 0.01uF R39 33.2 1% 10 1% C51 R28 OPT 2 R27 OPT 4.7pF 4 C9 C10 8.2pF 8.2pF 1 R40 33.2 1% C7 0.01uF R83 OPT R82 OPT C23 R59 AIN1+ R20 100 0201 2.2uF 10 1% R10 VDD 10 1% R60 C11 OPT


    Original
    PDF FIN1108 MABA-007159-000000 MABAES0060 LTC21XXCUP SDI-12 circuit 1620a 17 R5910 SCK SDA WP 1213D EN56 EN78 D123D lt3080

    LTI-SASF546-P26-X1

    Abstract: Marvell 88E1111 trace layout guidelines 88E1111-B2-CAA1C000 48F4400 PC48F4400P0VB00 48F4400p0vb00 88E1111-B2 -BAB-1I000 88E1111 Marvell PHY 88E1111 layout fuse n15
    Text: Transceiver Signal Integrity Development Kit, Stratix IV GX Edition Reference Manual 101 Innovation Drive San Jose, CA 95134 www.altera.com Document Version: Document Date: 2.0 November 2009 Copyright 2009 Altera Corporation. All rights reserved. Altera, The Programmable Solutions Company, the stylized Altera logo, specific device designations, and all other


    Original
    PDF

    LTM9013

    Abstract: No abstract text available
    Text: LTM9013 300MHz Wideband Receiver Features Description Integrated I/Q Demodulator, IF Amplifier, and Dual 14-Bit, 310Msps High Speed ADC n External Highpass Filter Allows Bandwidth Adjustment n 300MHz Lowpass Filter for Each Channel n RF Input Frequency Range: 0.7GHz to 4GHz


    Original
    PDF LTM9013 300MHz 14-Bit, 310Msps 300MHz 66dBc QFN-20 LTM9002 14-Bit LTM9013

    lm 7803 3V Positive Voltage Regulator

    Abstract: ic 4440 40w amplifier 12v ltsx e3 mt 1389 de LM 4440 AUDIO AMPLIFIER CIRCUIT w10 mic package bridge rectifier PF08109B smd code marking 162 sot23-5 ul 1741 grid te inverter datasheet ltqt e3
    Text: May 2009 Product Selection Guide Amplifiers Data Converters Linear Regulators Switching Regulators µModule DC/DC Converters Battery Chargers LED Drivers Hot Swap Interface Filters High Frequency Silicon Oscillators Comparators P Supervisor References Reference


    Original
    PDF D-59387 D-73230 1-800-4-LINEAR lm 7803 3V Positive Voltage Regulator ic 4440 40w amplifier 12v ltsx e3 mt 1389 de LM 4440 AUDIO AMPLIFIER CIRCUIT w10 mic package bridge rectifier PF08109B smd code marking 162 sot23-5 ul 1741 grid te inverter datasheet ltqt e3

    3080 ic 8 pin

    Abstract: LT3080EQ LT3080EDD#PBF LT3080 LT1085 LT1086 LT1764A LT3080EDD t0220 2N39
    Text: LT3080 Adjustable1.1A Single Resistor Low Dropout Regulator FEATURES DESCRIPTION n The LT 3080 is a 1.1A low dropout linear regulator that can be paralleled to increase output current or spread heat in surface mounted boards. Architected as a precision current source and voltage follower allows this new regulator


    Original
    PDF LT3080 LTC3406/LTC3406B 600mA LTC3411 10-Lead 3080fb 3080 ic 8 pin LT3080EQ LT3080EDD#PBF LT3080 LT1085 LT1086 LT1764A LT3080EDD t0220 2N39

    LTM9006Y14

    Abstract: QFN 48 JC JB MARKING L5 QFN-20 Trays 8205 LTM9007-14 LTM9006-14 LTM9008-14 LTC6409
    Text: LTM9008-14/ LTM9007-14/LTM9006-14 14-Bit, 65Msps/40Msps/ 25Msps Low Power Octal ADCs FEATURES DESCRIPTION 8-Channel Simultaneous Sampling ADC n 73dB SNR n 90dB SFDR n Low Power: 88mW/59mW/46mW per Channel n Single 1.8V Supply n Serial LVDS Outputs: 1 or 2 Bits per Channel


    Original
    PDF LTM9008-14/ LTM9007-14/LTM9006-14 14-Bit, 65Msps/40Msps/ 25Msps 88mW/59mW/46mW n800MHz n140-Pin 9008-14/LTM9007-14/LTM9006-14 14-bit LTM9006Y14 QFN 48 JC JB MARKING L5 QFN-20 Trays 8205 LTM9007-14 LTM9006-14 LTM9008-14 LTC6409

    LT3080

    Abstract: No abstract text available
    Text: Electrical Specifications Subject to Change LT3080 Adjustable1.1A Single Resistor Low Dropout Regulator U DESCRIPTIO FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Outputs May be Paralleled for Higher Current and Heat Spreading Output Current: 1.1A


    Original
    PDF LT3080 300mV O-220 OT-223 10-Lead LT1976 LTC3401 LTC3406/LTC3406B LTC3411 600mA

    VITA-57

    Abstract: LTM9009-14 LTM9011-14 LTM9010-14
    Text: DEMO MANUAL DC1751A LTM9011-14, LTM9010-14, LTM9009-14: 14-Bit, 125/105/ 80Msps Octal ADC Family DESCRIPTION DC1751 supports the LTM 9011 high speed, octal ADC family. frequencies from DC to 70MHz. Refer to the data sheet for proper input networks for different input frequencies.


    Original
    PDF DC1751A LTM9011-14, LTM9010-14, LTM9009-14: 14-Bit, 80Msps DC1751 70MHz. dc1751af VITA-57 LTM9009-14 LTM9011-14 LTM9010-14

    LTC6409IUDB

    Abstract: W2L14Z225MAT1A LTC5585 LTC6409
    Text: DEMO MANUAL DC1945A LTC2185 and LTC6409 16-Bit, 125Msps Dual ADC Combo Board Description Demonstration circuit 1945A supports the LTC 2185 125Msps dual ADC and a LTC6409 low noise amplifier. The assembly may be modified to evaluate other members of the pin-compatible 16-bit LTC2185 and 14-bit/12-bit


    Original
    PDF DC1945A LTC2185 LTC6409 16-Bit, 125Msps LTC6409 16-bit 14-bit/12-bit LTC6409IUDB W2L14Z225MAT1A LTC5585

    CON-SEAM-10X40PIN

    Abstract: ferrite k37 k38 k40 VITA-57
    Text: DEMO MANUAL DC1564A LTC2158-14, LTC2158-12, LTC2157-14, LTC2157-12, LTC2156-14, LTC2156-12, LTC2155-14, LTC2155-12 12-Bit/14-Bit, 170Msps to 310Msps Dual ADCs Description Demonstration circuit 1564A supports a family of 12-/14-bit 170Msps to 310Msps ADCs. Each assembly


    Original
    PDF DC1564A LTC2158-14, LTC2158-12, LTC2157-14, LTC2157-12, LTC2156-14, LTC2156-12, LTC2155-14, LTC2155-12 12-Bit/14-Bit, CON-SEAM-10X40PIN ferrite k37 k38 k40 VITA-57