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Texas Instruments DAC7571IDBVR
- Part No.:
- DAC7571IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Digital to Analog Converters (DAC)
- Package:
- SOT-23-6
- Datasheet:
-
DAC7571IDBVR.pdf
- Description:
- IC DAC 12BIT V-OUT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,602
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Product details
Overview
DAC7571IDBVR from Texas Instruments is a 12-bit, single-channel, I²C-compatible voltage-output digital-to-analog converter with rail-to-rail buffered output, 10 µs settling time to ±0.003%FS, micropower operation (140 µA @ 5 V), and integrated power-on reset to zero volts - deployed in portable instrumentation and closed-loop servo control systems.
For engineers reviewing the DAC7571IDBVR datasheet, DAC7571IDBVR pinout, DAC7571IDBVR application, or DAC7571IDBVR equivalent, this page delivers verified electrical specs, SOT-23-6 terminal mapping, real-world use-value per application, and two validated alternative parts with documented functional and interface differences.
Technical Context
The DAC7571IDBVR implements a resistor-string D/A architecture with an on-chip rail-to-rail output buffer amplifier, enabling 0 V to VDD output swing. Its I²C interface supports Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes with 7-bit slave address plus A0 select bit - allowing up to two devices on one bus.
Power management includes four programmable power-down modes (via PD1/PD0 bits), reducing supply current to 50 nA at 3 V while maintaining DAC register contents and offering selectable output termination (1 kΩ, 100 kΩ, or high-Z). The device features double-buffered input registers and monotonicity guaranteed by design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit unsigned binary - delivers 4096 discrete output levels across full-scale range. |
| Output Voltage Range | 0 V to VDD - enables rail-to-rail analog output without external reference or level-shifting circuitry. |
| Settling Time | 10 µs to ±0.003%FS - ensures fast, precise step response for dynamic control loops and data acquisition. |
| I²C Clock Frequency | Up to 3.4 MHz (High-Speed mode) - supports high-throughput updates in time-critical embedded systems. |
| Supply Current (Normal) | 135–200 µA @ 2.7–5.5 V - enables multi-year battery life in portable equipment operating at 3.3 V or 5 V. |
| Supply Current (Power-Down) | 0.05–1 µA @ 2.7–5.5 V - reduces system standby power to sub-microwatt levels during sleep cycles. |
| Relative Accuracy | ±0.195% of FSR - meets precision requirements for industrial process control and sensor calibration. |
Pinout & Package
The DAC7571IDBVR is housed in a 6-pin SOT-23 package (DBV), with lead pitch of 0.95 mm and body dimensions 2.9 mm × 1.6 mm × 1.1 mm. It is rated for operation from –40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Analog output node | Buffered rail-to-rail DAC output; drives 2 kΩ || 1000 pF loads with <1% load regulation error. |
| 2 - GND | Ground reference | Common return for analog and digital circuitry; must be low-impedance to minimize noise coupling. |
| 3 - VDD | Analog supply input | Single 2.7–5.5 V supply powers both DAC core and output amplifier; no separate AVDD/DVDD required. |
| 4 - SDA | I²C bidirectional data line | Open-drain interface compliant with I²C specification; requires external pull-up to VDD (typically 2.2–10 kΩ). |
| 5 - SCL | I²C clock input | Master-generated clock signal; timing supports up to 3.4 MHz in High-Speed mode with ≤400 pF bus capacitance. |
| 6 - A0 | Device address select | Configures LSB of 7-bit I²C address (100110A0); allows two DAC7571IDBVR units on same bus without address conflict. |
Key Features
| Feature | Design Value |
|---|---|
| Power-on reset to zero | Guarantees VOUT = 0 V at power-up until first valid I²C write - prevents uncontrolled actuator movement or signal transients. |
| Double-buffered input register | Enables glitch-free updates by latching new data before committing to DAC output - critical for synchronized multi-DAC systems. |
| Three power-down termination options | Programmable 1 kΩ, 100 kΩ, or high-Z output state during PWD - preserves known bias point in analog front-ends during sleep. |
| Rail-to-rail output amplifier | Delivers full 0–VDD swing into 2 kΩ load with 1 V/µs slew rate - eliminates need for external op-amp in most voltage-setting applications. |
| Specified monotonicity | Ensures no code-dependent output reversal across entire 12-bit range - essential for closed-loop stability and calibration integrity. |
Applications
| Process Control | Data Acquisition Systems |
|---|---|
Use Scenario: Generating precise analog setpoints for temperature, pressure, or flow controllers in PLC-based industrial systems. IC Role / Device Role / Timing Role: Voltage-output DAC providing stable, low-drift reference signals to analog input modules or actuator drivers. Use Value: ±0.195% FSR relative accuracy and ±3 ppm/°C gain drift ensure long-term calibration stability without periodic recalibration. |
Use Scenario: Converting digital sensor compensation values into analog correction voltages within high-resolution ADC front-ends. IC Role / Device Role / Timing Role: Precision trimming DAC used to null offset and adjust gain of instrumentation amplifiers or reference buffers. Use Value: 10 µs settling time and 12-bit resolution enable real-time dynamic calibration at sampling rates up to 100 kSPS. |
| Closed-Loop Servo Control | Portable Instrumentation |
Use Scenario: Driving motor position or velocity reference inputs in battery-powered robotic joints or optical positioning stages. IC Role / Device Role / Timing Role: Low-latency, low-power DAC delivering command voltages to servo amplifier inputs under microcontroller control. Use Value: 140 µA typical supply current at 5 V and 2.5 µs wake-up from power-down extend operational runtime between charges. |
Use Scenario: Providing variable bias voltages for sensor excitation, LCD contrast control, or LED dimming in handheld test equipment. IC Role / Device Role / Timing Role: General-purpose voltage source configured via I²C from ARM Cortex-M or RISC-V host processor. Use Value: SOT-23-6 footprint and I²C compatibility simplify PCB layout and firmware integration versus SPI or parallel-interface DACs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-output DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP4725A0T-E/CH | 12-bit, I²C, internal EEPROM, VDD-referenced output; no power-down termination options; 6 µs settling time. | Lacks programmable output impedance in sleep mode; better suited for non-critical biasing where EEPROM retention is needed. | Select when non-volatile DAC code storage is required and power-down state control is not critical. |
| AD5620BRJZ-REEL7 | 12-bit, SPI interface, internal 2.5 V reference, rail-to-rail output; 10 µs settling; no I²C support; higher supply current (350 µA). | Requires SPI host and external level-shifting for 3.3 V systems; unsuitable for I²C-only designs or ultra-low-power sleep. | Select when SPI infrastructure exists and tighter absolute accuracy (±0.1% FSR) outweighs interface and power constraints. |
Compared with MCP4725A0T-E/CH and AD5620BRJZ-REEL7, the DAC7571IDBVR uniquely combines I²C compatibility, sub-µA power-down current, and three selectable output termination states - making it optimal for space-constrained, battery-operated systems requiring deterministic analog behavior during sleep.
Availability
DAC7571IDBVR is available at Aetrix Electronics and suitable for portable instrumentation, closed-loop servo control, and process control applications requiring stable component supply, extended temperature operation (–40°C to +105°C), and long-term production continuity.
Supply support for DAC7571IDBVR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision data converters and low-power design.
The DAC7571IDBVR belongs to TI's precision voltage-output DAC product line, engineered for battery-powered and industrial systems where micropower operation, rail-to-rail output, and robust I²C interfacing are essential.
FAQ
What is the maximum I²C clock frequency supported by the DAC7571IDBVR?
The DAC7571IDBVR supports I²C High-Speed mode up to 3.4 MHz when bus capacitance is ≤100 pF, and up to 1.7 MHz with ≤400 pF. Standard (100 kHz) and Fast (400 kHz) modes are also fully supported. All timing parameters are specified across –40°C to +105°C and 2.7–5.5 V supply range. The DAC7571IDBVR does not support 10-bit addressing or general call commands.
Does the DAC7571IDBVR require an external reference voltage?
No, the DAC7571IDBVR uses its VDD supply as the reference - its output voltage range is 0 V to VDD. No external reference is needed, simplifying BOM and layout. This ratiometric architecture means output accuracy tracks VDD stability; for highest absolute accuracy, a clean, well-regulated VDD is recommended. The DAC7571IDBVR has no REF(+) or REF(–) pins.
How does the power-on reset function in the DAC7571IDBVR?
The DAC7571IDBVR incorporates an internal power-on reset circuit that forces the DAC register to zero upon power-up, resulting in VOUT = 0 V. This state persists until the first valid I²C write completes. This behavior prevents undefined output transients during system startup - a critical safety feature in servo and actuator control. The DAC7571IDBVR maintains this guarantee across its full –40°C to +105°C temperature range.
What are the power-down modes available on the DAC7571IDBVR?
The DAC7571IDBVR offers four power-down modes controlled by PD1/PD0 bits: Normal (140 µA @ 5 V), 1 kΩ-to-GND, 100 kΩ-to-GND, and high-impedance. In all PWD modes, supply current drops to ≤1 µA, analog circuitry shuts down, but DAC register contents are retained. Wake-up time is 2.5 µs (5 V) or 5 µs (3 V). These modes allow predictable output biasing during sleep - a key differentiator versus basic shutdown DACs.
Can multiple DAC7571IDBVR devices share the same I²C bus?
Yes - up to two DAC7571IDBVR devices can operate on a single I²C bus using the A0 pin to configure unique 7-bit addresses (1001100 or 1001101). The device does not support 10-bit addressing or general call, so no address conflicts occur if only DAC7571IDBVR units are present. Each device responds only to its assigned address and acknowledges writes accordingly.
DAC7571IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 12
- Number of D/A Converters:
- 1
- Settling Time:
- 10µs
- Output Type:
- Voltage - Buffered
- Differential Output:
- No
- Data Interface:
- I2C
- Reference Type:
- Supply
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- INL/DNL (LSB):
- -, ±1 (Max)
- Architecture:
- String DAC
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
DAC7571IDBVR FAQ
1.How can I place an order for DAC7571IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for DAC7571IDBVR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DAC7571IDBVR reliable?
The price and inventory of DAC7571IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DAC7571IDBVR is usually 5 days.
3.What payment methods are accepted for DAC7571IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DAC7571IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DAC7571IDBVR?
DAC7571IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DAC7571IDBVR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DAC7571IDBVR?
For technical support, including DAC7571IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DAC7571IDBVR requirements.
6.How does Aetrix verify that DAC7571IDBVR is sourced from the original manufacturer or authorized distributors?
All DAC7571IDBVR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DAC7571IDBVR meets industry standards.
7.What is the process for return or replacement of DAC7571IDBVR?
All DAC7571IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with DAC7571IDBVR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DAC7571IDBVR part is unused and in its original packaging.
Return procedure for DAC7571IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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