Specifications
| Type | Description |
|---|---|
| Part Number | DAC5571 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | SOT23-6, package designator DBV |
| Resolution | 8 bits |
| Supply Voltage | 2.7-5.5 V |
| Interface Type | I2C-compatible two-wire serial interface |
| Maximum I2C Clock Rate | 3.4 Mbps |
| Fast Update Rate | 188 KSPS |
| Output Voltage Range | 0 V to VDD |
| Relative Accuracy | ±0.5 LSB, linearity calculated using reduced code range 3 to 253, output unloaded |
| Differential Nonlinearity | ±0.25 LSB, assured monotonic by design |
| Monotonicity | Specified monotonic by design |
| Zero-Code Error | 5 mV typ, 20 mV max |
| Full-Scale Error | -0.15% FSR typ, -1.25% FSR max, all ones loaded to DAC register |
| Gain Error | ±1.25% FSR max |
| Zero-Code Error Drift | ±7 µV/°C typ |
| Gain Temperature Coefficient | ±3 ppm of FSR/°C typ |
| Output Voltage Settling Time | 6 µs typ, 8 µs max, 1/4-scale to 3/4-scale change, code 40h to C0h, RL = open |
| Slew Rate | 1 V/µs typ |
| Capacitive Load Stability, RL Open | 470 pF |
| Capacitive Load Stability, RL = 2 kΩ | 1000 pF |
| Code Change Glitch Impulse | 20 nV-s typ, 1 LSB change around major carry |
| Digital Feedthrough | 0.5 nV-s typ |
| DC Output Impedance | 1 Ω typ |
| Short-Circuit Current, VDD = 5 V | 50 mA typ |
| Short-Circuit Current, VDD = 3 V | 20 mA typ |
| Power-Up Time From Power-Down, VDD = 5 V | 2.5 µs typ |
| Power-Up Time From Power-Down, VDD = 3 V | 5 µs typ |
| Normal Supply Current, VDD = 3.6 V to 5.5 V | 155 µA typ, 200 µA max, DAC active excluding load current, VIH = VDD and VIL = GND |
| Normal Supply Current, VDD = 2.7 V to 3.6 V | 125 µA typ, 160 µA max, DAC active excluding load current, VIH = VDD and VIL = GND |
| Power-Down Supply Current, VDD = 3.6 V to 5.5 V | 0.2 µA typ, 1 µA max, all power-down modes, VIH = VDD and VIL = GND |
| Power-Down Supply Current, VDD = 2.7 V to 3.6 V | 0.05 µA typ, 1 µA max, all power-down modes, VIH = VDD and VIL = GND |
| Power-Down Current Feature | 50 nA at 5 V |
| Power Consumption | Less than 0.7 mW at VDD = 5 V, reducing to 1 µW in power-down mode |
| Power Efficiency | 93%, IOUT/IDD, ILOAD = 2 mA, VDD = 5 V |
| Logic Input Current | ±1 µA max |
| Input Low Voltage | 0.3 × VDD max, VDD = 3 V |
| Input High Voltage | 0.7 × VDD min, VDD = 5 V |
| Pin Capacitance | 3 pF typ |
| Operating Temperature Range | -40°C to +105°C |
| Storage Temperature Range | -65°C to +150°C |
| Junction Temperature Maximum | +150°C |
| Thermal Impedance | 240°C/W, RθJA |
| VDD to GND Absolute Maximum | -0.3 V to +6 V |
| Digital Input Voltage Absolute Maximum | -0.3 V to VDD + 0.3 V, referenced to GND |
| VOUT Absolute Maximum | -0.3 V to VDD + 0.3 V, referenced to GND |
| SCL Clock Frequency, Standard Mode | 100 kHz max |
| SCL Clock Frequency, Fast Mode | 400 kHz max |
| SCL Clock Frequency, High-Speed Mode, CB = 100 pF | 3.4 MHz max |
| SCL Clock Frequency, High-Speed Mode, CB = 400 pF | 1.7 MHz max |
| Bus Free Time Between STOP and START, Standard Mode | 4.7 µs min |
| Bus Free Time Between STOP and START, Fast Mode | 1.3 µs min |
| SDA/SCL Capacitive Load | 400 pF max |
| Pin 1 Function | VOUT, analog output voltage from DAC |
| Pin 2 Function | GND, ground reference point for all circuitry |
| Pin 3 Function | VDD, analog voltage supply input |
| Pin 4 Function | SDA, serial data input |
| Pin 5 Function | SCL, serial clock input |
| Pin 6 Function | A0, device address select |
| Address Support | Up to two DAC5571 devices on same data bus |
| Power-On Reset | DAC output powers up at zero volts and remains at zero until a valid write to the device takes place |
| Output Buffer | On-chip rail-to-rail output buffer amplifier |
| Input Register | Double-buffered input register |
| Datasheet Status | request_only |
Product Overview
The DAC5571 is an 8-bit voltage output DAC from Texas Instruments for Signal_Chain designs that need a digitally controlled voltage from 0 V to VDD. It integrates an on-chip rail-to-rail output buffer amplifier and a double-buffered input register, with power-on reset forcing the DAC output to zero volts until a valid write occurs.
The device operates from a 2.7 V to 5.5 V supply and is specified across -40°C to +105°C. Static performance includes ±0.5 LSB relative accuracy over code range 3 to 253 with the output unloaded, ±0.25 LSB differential nonlinearity, 5 mV typical zero-code error, and ±1.25% FSR maximum gain error.
Serial control is through an I2C-compatible two-wire interface using SDA and SCL. Supported SCL rates include 100 kHz standard mode, 400 kHz fast mode, and high-speed operation up to 3.4 MHz at 100 pF bus capacitance. The A0 address pin supports up to two DAC5571 devices on the same data bus. The SOT23-6 pinout provides VOUT, GND, VDD, SDA, SCL, and A0.
Key Features
- 8-bit voltage output DAC architecture
- 2.7 V to 5.5 V supply range
- 0 V to VDD output voltage range
- I2C-compatible two-wire SDA/SCL serial interface
- High-speed I2C operation up to 3.4 MHz
- 188 KSPS fast update rate
- ±0.5 LSB relative accuracy over reduced code range
- ±0.25 LSB differential nonlinearity, monotonic by design
- On-chip rail-to-rail output buffer amplifier
- Double-buffered input register
- Power-on reset sets output to zero volts
- SOT23-6 DBV package with A0 address select
Typical Applications
- I2C-controlled voltage output channels
- Low-power DAC output nodes
- Rail-to-rail buffered analog outputs
- Digitally programmed setpoint generation
- Two-device shared I2C bus designs
- Compact SOT23-6 signal-chain circuits
- Power-down analog control outputs
Procurement Notes
When requesting a quote for DAC5571, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of converter is the DAC5571?
The DAC5571 is an 8-bit voltage output DAC from Texas Instruments. It provides a 0 V to VDD output range and includes an on-chip rail-to-rail output buffer amplifier.
What supply voltage range does the DAC5571 support?
The DAC5571 operates from a 2.7 V to 5.5 V VDD supply. Its output voltage range is specified from 0 V to VDD, so the analog output span follows the applied supply voltage.
Which serial interface is used by the DAC5571?
The device uses an I2C-compatible two-wire serial interface with SDA and SCL pins. SCL operation is specified at 100 kHz standard mode, 400 kHz fast mode, and high-speed mode up to 3.4 MHz with 100 pF bus capacitance.
How does the DAC5571 behave at power-on?
The DAC5571 includes a power-on reset function. The DAC output powers up at zero volts and remains at zero until a valid write to the device takes place.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.