LTC2637

PRODUCTION

Octal 12-/10-/8-Bit I2C VOUT DACs with 10ppm/°C Reference

Data Sheet (Rev. D) Product Selection Table
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Overview

  • Integrated Precision Reference:
    • 2.5V Full-Scale 10ppm/°C (LTC2637-L)
    • 4.096V Full-Scale 10ppm/°C (LTC2637-H)
  • Maximum INL Error: 2.5LSB (LTC2637-12)
  • Low Noise: 0.75mVP-P 0.1Hz to 200KHz
  • Guaranteed Monotonic Over –40°C to 125°C Temperature Range
  • Selectable Internal or External Reference
  • 2.7V to 5.5V Supply Range (LTC2637-L)
  • Ultralow Crosstalk Between DACs (<3nV•s)
  • Low Power: 100μA per DAC at 3V (LTC2637-L)
  • Power-On-Reset to Zero-Scale/Mid-Scale
  • Double-Buffered Data Latches
  • Tiny 14-Lead 4mm × 3mm DFN and 16-Lead MSOP Packages

The LTC2637 is a family of octal 12-, 10-, and 8-bit voltage-output DACs with an integrated, high-accuracy, low-drift 10ppm/°C reference in 14-lead DFN and 16-lead MSOP packages. It has a rail-to-rail output buffer and is guaranteed monotonic. The LTC2637-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2637-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply. Each DAC can also operate with an external reference, which sets the DAC full-scale output to the external reference voltage.

These DACs communicate via a 2-wire I2C-compatible serial interface. The LTC2637 operates in both the standard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz). The LTC2637 incorporates a power-on reset circuit. Options are available for reset to zero-scale or reset to mid-scale in internal reference mode, or reset to mid-scale in external reference mode after power-up.

Applications

  • Mobile Communications
  • Process Control and Industrial Automation
  • Automatic Test Equipment
  • Portable Equipment
  • Automotive
  • Optical Networking
LTC2637
Octal 12-/10-/8-Bit I2C VOUT DACs with 10ppm/°C Reference
LTC2637 Application Circuit LTC2637 Pin Configuration LTC2637 Pin Configuration LTC2637 Performance Graph
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers 1
LTM2883
PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
Level Translators & Buffers 1
LTC4317
PRODUCTION Dual I2C/SMBus Address Translator
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Tools & Simulations

Linduino 3

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

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Evaluation Kits

eval board
schematic 1
DC1534A-D

LTC2637-HMI12 | 12-Bit Octal I2C DAC (4.096V Internal Reference Mode, Reset to Mid-Scale), Requires DC590

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Product Details

DC1534A-D: Demo Board for the LTC2637-12 Octal 12-Bit I2C VOUT DACs with 10ppm/°C Reference.

eval board
schematic 2
DC1534A-B

LTC2637-LMI12 | 12-Bit Octal I2C DAC (2.5V Interface Reference Mode, Reset to Mid-Scale), Requires DC590

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Product Details

DC1534A-B: Demo Board for the LTC2637-12 Octal 12-Bit I2C VOUT DACs with 10ppm/°C Reference.

eval board
schematic 3
DC1534A-C

LTC2637-HZ12 | 12-Bit Octal I2C DAC (4.096V Internal Reference Mode, Reset to Zero-Scale), Requires DC590

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Product Details

DC1534A-C: Demo Board for the LTC2637-12 Octal 12-Bit I2C VOUT DACs with 10ppm/°C Reference.

eval board
schematic 4
DC1534A-A

LTC2637-LZ12 | 12-Bit Octal I2C DAC (2.5V Interface Reference Mode, Reset to Zero-Scale), Requires DC590

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Product Details

DC1534A-A: Demo Board for the LTC2637-12 Octal 12-Bit I2C VOUT DACs with 10ppm/°C Reference.
DC1534A-D
LTC2637-HMI12 | 12-Bit Octal I2C DAC (4.096V Internal Reference Mode, Reset to Mid-Scale), Requires DC590
DC1534A-A - Schematic
DC1534A-B
LTC2637-LMI12 | 12-Bit Octal I2C DAC (2.5V Interface Reference Mode, Reset to Mid-Scale), Requires DC590
DC1534A-A - Schematic
DC1534A-C
LTC2637-HZ12 | 12-Bit Octal I2C DAC (4.096V Internal Reference Mode, Reset to Zero-Scale), Requires DC590
DC1534A-A - Schematic
DC1534A-A
LTC2637-LZ12 | 12-Bit Octal I2C DAC (2.5V Interface Reference Mode, Reset to Zero-Scale), Requires DC590
DC1534A-A - Schematic

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