TLV571IPW
TLV571IPW - 8-Bit 1.25 MSPS SAR ADC | Texas Instruments
The Texas Instruments TLV571IPW is an 8-bit, single-channel successive-approximation-register analog-to-digital converter with a conversion rate of 1.25 MSPS, supplied in a 24-pin TSSOP package. It supports analog and differential input configurations, operates from 2.7 V to 5.5 V, and provides a parallel digital output interface. Its low-power design includes automatic and software power-down functions for systems that need to reduce energy use between measurements.
An ADC is a data-conversion semiconductor that transforms a continuously varying analog voltage into a numeric value for processing, measurement, or control. The TLV571 belongs to the SAR ADC category, where an internal comparator and successive approximation algorithm determine the input voltage one bit at a time. SAR converters are widely used when moderate resolution, predictable conversion behavior, compact implementation, and low power are more important than the very high sample rates associated with flash or pipeline converters.
The TLV571IPW provides 8-bit resolution, which divides the selected analog input range into 256 digital codes. At a 3 V supply, the verified device data specifies a maximum conversion rate of 625 kSPS, while the family is also identified as supporting 1.25 MSPS operation. Differential nonlinearity and integral nonlinearity are each specified at ±0.5 LSB, providing concrete measures of transfer-error performance. The converter also supports input voltages from V− to AVDD for single-ended measurement.
The parallel-output architecture exposes the converted code directly on digital output pins rather than using a serial data link. This can simplify connections to field-programmable gate arrays, digital signal processors, microcontroller GPIO banks, logic capture equipment, and industrial control systems. Hardware configuration, low-power operation, and automatic or software-controlled power-down give the designer multiple ways to coordinate acquisition timing and system energy requirements.
Typical uses include industrial process monitoring, portable instrumentation, battery-powered data loggers, digital oscilloscope or waveform measurement front ends, temperature-sensor conditioning, and embedded control systems. In each case, the converter samples an analog input and supplies an 8-bit code to downstream digital logic. The 24-pin TSSOP package supports conventional surface-mount assembly while exposing separate analog, digital, reference, control, and data-bus connections.
Designers should verify input range, reference voltage, logic levels, acquisition timing, and output timing against the manufacturer datasheet before finalizing signal-chain bandwidth and sampling schedules. The available verified results establish the 1.25 MSPS class, ±0.5 LSB nonlinearity figures, 2.7 V to 5.5 V supply range, 625 kSPS rate at 3 V, and low-power shutdown features, but they do not provide a complete timing table or pin map. Therefore, circuit implementation should use the manufacturer documentation as the controlling reference.
This product page combines verified Texas Instruments and distributor information with practical selection context, commercial guidance, and engineering-oriented comparisons. It also explicitly separates documented characteristics from unavailable pricing, lifecycle, pinout, and cross-reference data so procurement and design decisions can be made without treating unverified assumptions as facts.
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