Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Resolution | 12-bit, single channel |
| Supply | 2.0 V to 5.5 V |
| Current | 80 µA at 2.0 V stated |
| Interface | Low-power serial interface up to 50 MHz |
| Output | Buffered rail-to-rail voltage output |
| Reference | Supply-referenced resistor-string architecture |
| Power | Power-down to sub-µA current; reset to zero scale |
| Exact Package / Packing | SC70 (DCK), 6 pins; 3000-piece large reel; marking D73 |
Product Overview
DAC7311IDCKR is optimized for battery-powered systems that need a 12-bit analog set point from a tiny six-pin package. Its normal current is only tens of microamps and the serial interface can still run at high clock rate for quick updates.
The output scale follows the supply rather than an internal precision reference. This saves pins and power but makes supply stability part of output accuracy, especially when the DAC is used as an absolute calibration voltage.
The SC70 footprint minimizes board area and the DCKR suffix selects the 3000-piece large reel. Its low-power architecture fits portable instruments and loop-powered transmitters where every microamp matters.
For related devices, see HKEQGOO’s DACs category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | DAC7311IDCKR |
| Resolution | 12-bit, single channel |
| Supply | 2.0 V to 5.5 V |
| Current | 80 µA at 2.0 V stated |
| Interface | Low-power serial interface up to 50 MHz |
| Output | Buffered rail-to-rail voltage output |
| Reference | Supply-referenced resistor-string architecture |
| Power | Power-down to sub-µA current; reset to zero scale |
| Exact Package / Packing | SC70 (DCK), 6 pins; 3000-piece large reel; marking D73 |
| Manufacturer Status | Active / Production |
| Part Marking | D73 |
Functional Highlights
Low quiescent current preserves battery or loop budget
The DAC can stay powered as a live trim output without consuming the milliamp-class current of higher-performance precision DACs.
High-speed serial loading and low analog power are not contradictory
Codes can be transferred quickly, while average power remains low when updates are infrequent.
Design Considerations
- Use a clean supply if the output must be an accurate absolute voltage.
- Check output load current and capacitive stability because the tiny buffer is intended for set-point loads, not power drive.
- Use power-down only if the external circuit tolerates the resulting output state.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists DAC7311IDCKR as Active / Production; SC70 (DCK), 6 pins; 3000-piece large tape and reel; −40°C to +125°C; marking D73.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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