Texas Instruments TLV1570CPWRG4

Overview

TLV1570CPWRG4 from Texas Instruments is a 10-bit, 8-channel serial analog-to-digital converter (ADC) with 1.25 MSPS throughput at 5 V and 625 KSPS at 3 V. It integrates an on-chip 8:1 analog multiplexer, internal reference (2.3 V or 3.8 V), SAR architecture, and SPI/QSPI-compatible 4-/5-wire serial interface. Designed for high-speed data acquisition in DSP-based motor control and sensor monitoring systems.

For engineers reviewing the TLV1570CPWRG4 datasheet, TLV1570CPWRG4 pinout, TLV1570CPWRG4 application, or TLV1570CPWRG4 equivalent, key selection criteria include its 10-bit resolution with ±1 LSB INL/DNL, single 2.7–5.5 V supply operation, autopower-down (300 µA) and software power-down (10 µA) modes, and direct glueless interfacing to TMS320 DSPs and SPI microcontrollers.

Technical Context

The TLV1570CPWRG4 implements a successive-approximation register (SAR) ADC with binary-weighted capacitor array sampling, where REF– is tied to AGND and REF+ connects to the internal or external reference. Conversion requires 16 SCLK cycles per sample, limiting maximum sampling rate to f_SCLK/16.

It features dual power-down modes: autopower-down activates 10 ns after conversion completion (300 µA max), while software power-down-enabled via DI15 bit in the 16-bit configuration register-reduces current to 10 µA but requires 16 SCLKs to resume. Channel auto-scan and programmable MUX access enable flexible signal conditioning across all eight inputs.

Key Specifications

Pinout & Package

TSSOP-20 package (PW), 0°C to 70°C operating temperature range, 0.65 mm pitch, 6.5 mm × 4.4 mm body size.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit multichannel ADC applications.

Compared with TLV1570CPWRG4, ADS7822U trades speed and integration for resolution, while TLV2548IPW offers higher bit depth but sacrifices MUX flexibility and low-power autonomy - making TLV1570CPWRG4 optimal for throughput-constrained, multi-sensor DSP systems requiring minimal external components.

Availability

TLV1570CPWRG4 is available at Aetrix Electronics and suitable for motor control feedback, DSP-based sensor hubs, hard disk drive servo loops, and automotive body control modules requiring stable component supply across extended production lifecycles.

Supply support for TLV1570CPWRG4 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 and embedded processing technologies, with over 50 years of innovation in data converters and signal chain solutions.

The TLV1570CPWRG4 belongs to TI's precision data acquisition portfolio, designed specifically for high-speed, low-power, multichannel analog sensing in DSP-centric industrial and automotive systems.

FAQ

What is the maximum sampling rate of the TLV1570CPWRG4 and what clock frequency is required?

The TLV1570CPWRG4 achieves a maximum throughput of 1.25 MSPS at 5 V, requiring a 20 MHz SCLK; at 3 V, it operates up to 625 KSPS with a 10 MHz SCLK. Each conversion consumes exactly 16 SCLK cycles, so fs = f_SCLK/16. The TLV1570CPWRG4 does not support oversampling or decimation modes - its rate is strictly determined by the applied serial clock.

Does the TLV1570CPWRG4 support differential input configurations?

No, the TLV1570CPWRG4 accepts only single-ended analog inputs across CH0–CH7 and AIN. Its architecture uses a pseudo-differential SAR core with REF– tied to AGND, but it lacks dedicated IN+/IN− pins or configurable differential channel pairs. For true differential acquisition, external signal conditioning or a different ADC family (e.g., ADS868x) is required.

How does the MO (MUX Output) pin enhance system design with the TLV1570CPWRG4?

The MO pin exposes the analog output of the internal 8:1 multiplexer before the ADC sampling stage, allowing designers to place a single anti-aliasing filter, gain amplifier, or protection circuit ahead of the ADC - serving all eight input channels. This eliminates eight parallel signal chains, reducing component count, board area, and inter-channel mismatch in the TLV1570CPWRG4-based system.

Can the TLV1570CPWRG4 operate with separate analog and digital supply voltages?

Yes, the TLV1570CPWRG4 has independent AVDD and DVDD pins, but they must remain within 0.5 V of each other (|AVDD − DVDD| < 0.5 V) per datasheet specifications. Both rails operate from 2.7 V to 5.5 V. This constraint ensures proper logic threshold alignment and minimizes supply-induced offset errors - critical for maintaining ±1 LSB INL performance in the TLV1570CPWRG4.

What are the power-down current specifications for the TLV1570CPWRG4 and how are they triggered?

The TLV1570CPWRG4 offers two distinct power-down states: autopower-down draws ≤300 µA and activates automatically 10 ns after conversion completes; software power-down draws ≤10 µA and is enabled by setting DI15=1 in the configuration register. Recovery from autopower-down takes 1 SCLK cycle; software power-down requires 16 SCLKs to resume conversion - both modes preserve no register state.