Features and Benefits
- 14-Bit Monotonic Over Temperature
- Smallest Dual 14-Bit DAC: 16-Lead Narrow SSOP Package
- Individually Programmable Speed/Power:
- 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
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 VCC in 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 and 540µA in the two modes. The LTC1654 also has shutdown capability, power-on reset and a clear function to 0V.
- Digital Calibration
- Industrial Process Control
- Automatic Test Equipment
- Offset/Gain Adjustment
- Multiplying DAC
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
LTC1654 Companion Parts
Recommended µModule Isolator
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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