Texas Instruments ADCV08832CIMX/NOPB

Overview

ADCV08832CIMX/NOPB from Texas Instruments (formerly National Semiconductor) is a low-voltage, 8-bit successive-approximation analog-to-digital converter with integrated sample-and-hold, 3-wire serial MICROWIRE™ interface, and single-supply operation from 2.7V to 5.5V. It supports single-ended, differential, and pseudo-differential input configurations and delivers 16 µs max conversion time at 500 kHz clock for sensor digitization in industrial monitoring systems.

For engineers reviewing the ADCV08832CIMX/NOPB datasheet, ADCV08832CIMX/NOPB pinout, ADCV08832CIMX/NOPB application, or ADCV08832CIMX/NOPB equivalent, key selection criteria include its ±0.8 LSB total unadjusted error, <0.1 µW power-down mode, SOIC-8 package compatibility, and support for noise-immune serial interfacing with microcontrollers and DSPs in embedded data acquisition.

Technical Context

The ADCV08832CIMX/NOPB implements a successive-approximation register (SAR) architecture with an on-chip sample-and-hold circuit that acquires the analog input during MUX settling and holds it for the full 13-clock-cycle conversion sequence. Its 3-wire serial interface (CS, CLK, DI/DO) complies with NSC MICROWIRE™ timing, supporting MSB-first or LSB-first output and tri-state DO during CS high.

Analog input flexibility is enabled by software-configurable multiplexer addressing: two channels (CH0, CH1) can be selected in single-ended mode (GND-referenced), true differential mode (± polarity programmable), or pseudo-differential mode. Input voltage range spans GND to VCC, with 13 pF input capacitance and 300 Ω series resistance per channel, requiring attention to source impedance and settling time.

Key Specifications

Pinout & Package

ADCV08832CIMX/NOPB is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, designated M08A by Texas Instruments, with standard 1.27 mm pitch and RoHS-compliant matte tin (Sn) lead finish. The package is rated MSL Level-1 (unlimited floor life) and supports peak reflow up to 260°C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit serial ADC applications.

Compared with TLV0832CD and ADC0832CCN, ADCV08832CIMX/NOPB offers broader supply range (2.7–5.5V), lower power-down current (<0.1 µW vs ≥1 µW), and modern SOIC packaging with MSL-1 qualification - making it the optimal choice for new industrial and embedded designs requiring long-term manufacturability and voltage flexibility.

Availability

ADCV08832CIMX/NOPB is available at Aetrix Electronics and suitable for industrial process monitoring, remote environmental sensing, and embedded instrumentation requiring stable component supply, long-lifecycle availability, and RoHS-compliant sourcing.

Supply support for ADCV08832CIMX/NOPB 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 acquired National Semiconductor in 2011 and maintains full technical and supply chain responsibility for legacy analog products including the ADCV08832 family.

The ADCV08832 belongs to TI's precision data converter portfolio designed for cost-sensitive, low-power industrial and embedded applications where simplicity, reliability, and single-supply operation are critical.

FAQ

What is the maximum clock frequency supported by ADCV08832CIMX/NOPB?

The ADCV08832CIMX/NOPB supports a maximum clock frequency of 1000 kHz at VCC = 5V, 700 kHz at VCC = 3.3V, and 400 kHz at VCC = 2.7V. Operation outside these limits may cause timing violations or conversion errors. For reliable 16 µs max conversion time, use fCLK = 500 kHz as specified in the Electrical Characteristics table. Always maintain 40–60% duty cycle per datasheet requirements.

Does ADCV08832CIMX/NOPB require external zero or full-scale calibration?

No, ADCV08832CIMX/NOPB does not require external zero or full-scale calibration. Its offset and full-scale errors are factory trimmed, resulting in guaranteed ±0.8 LSB total unadjusted error across temperature. This eliminates production calibration steps and reduces firmware overhead - a key advantage over untrimmed ADCs like early-generation TLCxxx devices.

Can ADCV08832CIMX/NOPB operate with a 2.7V supply in industrial temperature range?

Yes, ADCV08832CIMX/NOPB is fully specified for operation from 2.7V to 5.5V across the industrial temperature range of −40°C to +125°C. At 2.7V, the maximum clock frequency is 400 kHz, and power dissipation drops to ~1.2 mW. All key parameters - including ±0.8 LSB TUE and no missing codes - are guaranteed under these conditions per the Operating Ratings table.

How does the sample-and-hold function work in ADCV08832CIMX/NOPB?

The ADCV08832CIMX/NOPB integrates a track-and-hold circuit that samples the selected analog input during the MUX settling interval (½ clock period after odd/sign bit latching) and holds it constant throughout the 8-bit SAR conversion. This prevents input signal drift during digitization and enables accurate capture of dynamic or noisy waveforms - especially critical in differential mode where the negative input must remain stable across all 8 comparisons.

Is ADCV08832CIMX/NOPB pin-compatible with TLV0832 and ADC0832?

Yes, ADCV08832CIMX/NOPB is explicitly documented as a superior pin-compatible replacement for both TLV0832 and ADC0832. It shares identical SOIC-8 pinout, signal definitions, and timing behavior. Key improvements include extended 2.7–5.5V supply range, lower power-down current (<0.1 µW), and enhanced ESD robustness (2500V HBM), making it a drop-in upgrade for existing designs using those legacy parts.