TLV571CDW - 8-Bit 1.25 MSPS ADC | Texas Instruments
MPN: TLV571CDW ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.548 | $1.55 |
| 10 | $1.548 | $15.48 |
| 100 | $1.548 | $154.80 |
| 500 | $1.548 | $774.00 |
| 1,000 | $1.548 | $1,548.00 |
TLV571CDW Overview
An ADC is a data-acquisition IC that samples an analog voltage and converts it into a digital value. The TLV571 belongs to the ADC/DAC hierarchy and uses a successive-approximation, or SAR, conversion architecture. Its parallel interface provides eight digital output bits plus control and status signals, making it suitable for systems where a microcontroller, DSP, or other digital controller reads conversions without relying on a serial protocol.
The verified manufacturer data identifies several useful features: 2.7 V to 5.5 V single-supply operation, 0 V to AVDD analog input range, differential and integral nonlinearity below ±0.5 LSB, and hardware configuration for DSP and microcontroller compatibility. The output can be binary or twos complement. Low-power operation is also emphasized, with 12 mW specified at 3 V and 35 mW at 5 V.
Power management is handled through automatic power-down or software power-down, according to the manufacturer product description. Automatic power-down is listed at 1 mA maximum, while software power-down is listed at 10 maximum in the verified datasheet snippet. The internal oscillator and hardware-configurable interface make the converter useful for compact control, monitoring, and embedded acquisition systems.
Typical uses include industrial sensor acquisition, battery-powered monitoring, portable instrumentation, embedded control, and DSP or microcontroller front ends. Designers should verify the exact timing, input impedance, reference requirements, acquisition-cycle behavior, and electrical limits against the complete manufacturer datasheet before finalizing a PCB.
This page combines verified manufacturer and distributor information with engineering guidance for selecting, comparing, and integrating the TLV571CDW.
Drop-in alternatives for TLV571CDW — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesTLV571CDW Maximum Ratings & Electrical Characteristics
| Resolution | 8 bit |
| Conversion Rate | 1.25 MSPS |
| Conversion Rate at 3 V | 625 KSPS |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Analog Input Range | 0 V to AVDD |
| Differential Nonlinearity Error | < ±0.5 LSB |
| Integral Nonlinearity Error | < ±0.5 LSB |
| Power at 3 V | 12 mW |
| Power at 5 V | 35 mW |
| Auto Power-Down | 1 mA maximum |
| Software Power-Down | 10 maximum |
| Interface | Parallel interface |
| Output Format | Binary or twos complement |
| Clock Source | Internal OSC |
| Compatibility | DSP and microcontroller compatible |
| Package | 16-pin SOIC |
| RoHS Status | RoHS compliant |
| Lead-Free Status | Lead free |
TLV571CDW 16-pin soic Pin Configuration Guide
Pin configuration for TLV571CDW (16-pin soic package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for TLV571CDW.
Refer to the datasheet for full pin configuration.
Typical Applications
TLV571CDW is suitable for 6 applications: Industrial Sensor Acquisition, Battery-Powered Monitoring, Portable Instrumentation, Embedded Control Front End, Threshold and Control Monitoring, Educational and Evaluation Electronics.
Industrial Sensor Acquisition
The TLV571CDW fits low-speed industrial monitoring designs that need to digitize sensor outputs into an 8-bit code for a controller. Its 2.7 V to 5.5 V supply range supports common embedded rails, while the 0 V to AVDD analog input range allows direct use with suitably conditioned sensor signals. The parallel interface can connect to a microcontroller or DSP without a serial protocol. Keep the input bandwidth low enough for the 625 KSPS-at-3-V or family 1.25-MSPS timing context, and verify source impedance, acquisition time, and settling behavior in the full datasheet.
Recommended
Battery-Powered Monitoring
The TLV571CDW is suitable for portable monitoring nodes where an 8-bit measurement is sufficient for battery state, environmental thresholds, or simple actuator feedback. The verified manufacturer data highlights 12 mW operation at 3 V, 35 mW at 5 V, automatic power-down, and software power-down. Those functions can reduce consumption between samples, but the final duty cycle and regulator efficiency determine battery life. Use the ADC reference and interface pins only within the limits in the datasheet, and confirm whether the measured source can recharge between conversions.
Recommended
Portable Instrumentation
For a handheld meter or compact diagnostic instrument, TLV571CDW provides a straightforward 8-bit parallel conversion stage for displaying or processing slowly changing analog values. The 2.7 V to 5.5 V operating range can simplify power architecture, and the ADC's low-power figures help control system energy use. Performance depends on the analog conditioning path, reference stability, and input settling. The 8-bit resolution limits absolute precision, so applications needing more than coarse quantization should use a higher-resolution converter or add a suitable front end.
Recommended
Embedded Control Front End
The TLV571CDW can serve as a hardware acquisition front end when a DSP or microcontroller needs periodic 8-bit measurements. The verified manufacturer description specifically calls out DSP and microcontroller compatibility, while the internal oscillator and hardware configuration simplify standalone acquisition. Place input conditioning close to the ADC and route the parallel outputs with controlled timing and grounding. Before selecting the converter, verify acquisition time, clock behavior, output coding, and any timing relationship between conversion start and data validity in the official datasheet.
Recommended
Threshold and Control Monitoring
An 8-bit ADC is often sufficient when a controller only needs to detect whether a signal is below, above, or near a setpoint. TLV571CDW can digitize conditioned analog outputs and feed the resulting code to logic for threshold decisions. The available binary or twos-complement output coding lets the firmware select the representation that best matches the control algorithm. For safety-critical decisions, add hysteresis, filtering, and fault handling; the converter's linearity specification below ±0.5 LSB does not replace complete system error analysis.
Recommended
Educational and Evaluation Electronics
TLV571CDW is useful in student projects and evaluation boards because it combines an understandable 8-bit parallel ADC with a common 2.7 V to 5.5 V supply range and manufacturer-documented low-power modes. Students can connect a conditioned analog input to a microcontroller, capture binary or twos-complement codes, and study sampling, noise, linearity, and power management. The 16-pin SOIC package also supports conventional prototyping methods. Always follow the exact datasheet pinout and recommended decoupling because the supplied web results do not expose the complete pin table.
Recommended
Recommended Products Summary
Engineering reference data for TLV571CDW — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Resolution | 8 bit |
| Conversion Rate | 1.25 MSPS family rating; 625 KSPS at 3 V |
| Supply Voltage | 2.7 V to 5.5 V |
| Analog Input Range | 0 V to AVDD |
| Interface | Parallel |
| Output Format | Binary or twos complement |
| Package | 16-pin SOIC |
| Brand | Texas Instruments |
| Power at 3 V | 12 mW |
| Power at 5 V | 35 mW |
| Differential Nonlinearity | < ±0.5 LSB |
| Power-Down | Automatic or software power-down |
Key Differentiators
- Parallel 8-bit interface (vs No verified alternative MPN supplied)
- Low-power operating figures (vs No verified alternative MPN supplied)
- Single-supply analog range (vs No verified alternative MPN supplied)
- Configurable output coding (vs No verified alternative MPN supplied)
Design Notes
Keep the analog input path short and place the input-conditioning components close to the ADC. The verified TLV571 data specifies an analog input range of 0 V to AVDD and linearity below ±0.5 LSB, so source impedance, capacitor settling, and sampling timing can affect usable accuracy even when the digital interface is correct. Review the manufacturer's acquisition-time and input-capacitance guidance, provide a suitable driver, and keep switching-regulator and digital return currents away from the reference and input nodes.
Design the supply around the verified 2.7 V to 5.5 V operating range and account for both active and shutdown consumption. The manufacturer result lists 12 mW at 3 V and 35 mW at 5 V, while automatic and software power-down can reduce consumption between conversions. Place bypass capacitors close to the supply pins according to the datasheet, use a stable reference implementation, and verify startup sequencing if the ADC must remain unpowered or partially powered with the surrounding controller.
Route the eight parallel data lines and control signals away from the analog input and reference nets. Use a quiet ground return for the converter and connect decoupling according to the manufacturer layout guidance. Because the supplied verified data does not include the complete pin table, do not assign pins from memory. Verify the official TLV571 pinout, exposed connections if any, package dimensions, and recommended land pattern before releasing the PCB files.
Do not treat the family conversion-rate statement as a guaranteed throughput without checking supply voltage, clock configuration, acquisition time, and output timing in the datasheet. Likewise, an 8-bit converter may be adequate for threshold monitoring but insufficient for high-precision measurement. Avoid assuming that a generic 8-bit ADC is a drop-in replacement: verify pin mapping, supply levels, input range, output coding, power modes, timing, and package dimensions first.
Compliance Information
JLCPCB search results identify TLV571CDW as RoHS compliant, and Kynix identifies the part as lead free and RoHS compliant. REACH, AEC-Q100, halogen-free, and conflict-minerals status were not established by the supplied data.
