LTC1458

PRODUCTION

Quad 12-Bit Rail-to-Rail Micropower DACs

Data Sheet Product Selection Table
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Overview

  • Quad 12-Bit DAC
  • Buffered True Rail-to-Rail Voltage Output
  • Maximum DNL Error: 0.5LSB
  • 5V Operation, ICC: 1.1mA Typ (LTC1458)
  • 3V Operation, ICC: 800µA Typ (LTC1458L)
  • Internal or External Reference Operation
  • Settling Time: 14µs to ±0.5LSB
  • Schmitt Trigger On Clock Input Allows Direct Optocoupler Interface
  • Power-On Reset and CLR Pin
  • SSOP-28 Package
  • 3-Wire Cascadable Serial Interface with 250kHz Update Rate
  • Low Cost

The LTC1458/LTC1458L are complete single supply, quad rail-to-rail voltage output, 12-bit digital-to-analog converters (DACs) in SO-28 and SSOP-28 packages.They include an output buffer amplifier with variable gain (×1 or ×2) and an easy-to-use 3-wire cascadable serial interface.

The LTC1458 has an on-board reference of 2.048V and a full-scale output of 4.095V in a ×2 gain configuration. It operates from a single 4.5V to 5.5V supply dissipating only 5.5mW (ICC = 1.1mA typ).

The LTC1458L has an onboard 1.22V reference and a full-scale output of 2.5V in a ×2 gain configuration. It operates from a single supply of 2.7V to 5.5V dissipating 2.4mW.

Excellent DNL, low supply current and a wide range of built-in functions allow these parts to be used in a host of applications when flexibility, power and single supply operation are important.

Applications

  • Digital Calibration
  • Industrial Process Control
  • Automatic Test Equipment
  • Low Power Systems
LTC1458
Quad 12-Bit Rail-to-Rail Micropower DACs
Functional Block Diagram: Quad 12-Bit Rail-to-Rail DAC Differential Nonlinearity vs Input Code Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

Data Sheet

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Digital to Analog Converters (DACs) 2
LTC2634
PRODUCTION Quad 12-/10-/8-Bit Rail-to-Rail DACs with 10ppm/°C Reference
LTC2654
PRODUCTION Quad 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference
Interface Transceivers & Isolators 1
LTM2883
PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
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