Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Channels / Resolution | 1 channel, 8-bit |
| Interface | I²C up to 3.4 Mbps; A0 permits two address choices |
| Update Rate | 188 kSPS stated fast update rate |
| Output | Buffered rail-to-rail; 0 V to VDD range |
| Supply | 2.7 V to 5.5 V |
| Current | 125 µA at 3 V stated operating current |
| Power State | Power-on reset to zero; low-current power-down mode |
| Exact Package / Packing | SOT-23-6 (DBV); 3000-piece reel; marking D571 |
Product Overview
DAC5571IDBVR is a compact single-channel 8-bit DAC for simple bias, set-point and trim outputs controlled over I²C. The output full scale follows VDD, so no external reference pin is required.
The high-speed I²C interface and double-buffered register support fast digital updates, but the 8-bit code depth remains the main precision limit. It is therefore best suited to coarse adjustment, calibration or actuator set points rather than fine instrumentation output.
A0 allows two DAC5571 devices on one bus. The DBVR suffix is the 3000-piece SOT-23 reel, useful for space-constrained embedded designs.
For related devices, see HKEQGOO’s DACs category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | DAC5571IDBVR |
| Channels / Resolution | 1 channel, 8-bit |
| Interface | I²C up to 3.4 Mbps; A0 permits two address choices |
| Update Rate | 188 kSPS stated fast update rate |
| Output | Buffered rail-to-rail; 0 V to VDD range |
| Supply | 2.7 V to 5.5 V |
| Current | 125 µA at 3 V stated operating current |
| Power State | Power-on reset to zero; low-current power-down mode |
| Exact Package / Packing | SOT-23-6 (DBV); 3000-piece reel; marking D571 |
| Manufacturer Status | Active / Production |
| Part Marking | D571 |
Functional Highlights
VDD-referenced output minimizes pin count and BOM
For ratiometric or nonprecision set points, using the supply as full scale can be simpler than adding a dedicated reference.
Fast I²C is useful even for an 8-bit DAC
Quick register writes help control loops and production calibration routines despite the limited code resolution.
Design Considerations
- Treat VDD noise/drift as output gain error because the DAC full scale tracks the supply.
- Check that 256 codes provide enough adjustment granularity.
- Reserve the A0 address state before placing two devices on one I²C bus.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists DAC5571IDBVR as Active orderable DAC5571IDBVR; SOT23-6 DBV; 3000-piece tape and reel; marking D571.
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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