Catalog
Dual 14-Bit Rail-to-Rail DAC in 16-Lead SSOP Package
Key Features
• 14-Bit Monotonic Over Temperature
• Smallest Dual 14-Bit DAC: 16-Lead Narrow SSOP Package
• Individually Programmable Speed/Power:3.5µs Settling Time at 750µA8µs Settling Time at 450µA
• 3.5µs Settling Time at 750µA
• 8µs Settling Time at 450µA
• 3V to 5V Single Supply Operation
• Maximum Update Rate: 0.9MHz
• Buffered True Rail-to-Rail Voltage Outputs
• User Selectable Gain
• Power-On Reset and Clear Function
• Schmitt Trigger On Clock Input Allows Direct Optocoupler Interface
Description
AI
The LTC1654 is a dual, rail-to-rail voltage output, 14-bit digital-to-analog converter (DAC). It is available in a 16-lead narrow SSOP package, making it the smallest dual 14-bit DAC available. It includes output buffer amplifiers and a flexible serial interface.The LTC1654 has REFHI pins for each DAC that can be driven up to VCC. The output will swing from 0V to VCCin a gain of 1 configuration or VCC/2 in a gain of 1/2 configuration. It operates from a single 2.7V to 5.5V supply.The LTC1654 has two programmable speeds: a FAST and SLOW mode with ±1LSB settling times of 3µs or 8.5µs respectively and supply currents of 930µA and540µAin the two modes. The LTC1654 also has shutdown capability, power-on reset and a clear function to 0V.ApplicationsDigital CalibrationIndustrial Process ControlAutomatic Test EquipmentOffset/Gain AdjustmentMultiplying DAC