Texas Instruments ADS8883IDRCR

Overview

ADS8883IDRCR from Texas Instruments is an 18-bit, 680-kSPS true-differential SAR analog-to-digital converter with no latency output, 100 dB SNR, ±3.0 LSB max INL, and SPI-compatible serial interface. It operates from 2.7 V to 3.6 V AVDD and 1.65 V to 3.6 V DVDD, supports –VREF to +VREF differential input range, and delivers 4.2 mW power dissipation at full speed-enabling high-precision data acquisition in battery-powered instrumentation.

For engineers reviewing the ADS8883IDRCR datasheet, ADS8883IDRCR pinout, ADS8883IDRCR application, or ADS8883IDRCR equivalent, key selection considerations include its true-differential input architecture with 0 V to VREF common-mode flexibility, daisy-chain-capable SPI interface, 540 ns full-scale settling time, and SON-10 (DRC) package thermal performance for compact, low-noise PCB layouts.

Technical Context

The ADS8883IDRCR employs a charge-redistribution SAR architecture with integrated sample-and-hold, enabling single-cycle conversion without pipeline latency. Its true-differential input stage includes a dedicated common-mode voltage detection and rejection block that maintains 90 dB CMRR across 0 V to VREF common-mode range-unlike conventional SAR ADCs constrained to mid-scale VCM.

Digital interface operation supports three modes: 3-wire (CONVST as CS), 4-wire (DIN as CS), and daisy-chain-each with defined timing parameters including 13.4 ns SCLK-to-DOUT delay and 5 ns setup/hold for SCLK relative to CONVST. Power consumption scales linearly with throughput: 60 µW at 10 kSPS, 0.6 mW at 100 kSPS, and 4.2 mW at 680 kSPS.

Key Specifications

Pinout & Package

ADS8883IDRCR is packaged in a 10-pin SON (Small Outline No-Lead) package, designated DRC, with an exposed thermal pad. This thermally enhanced package provides θJB = 45.9°C/W and θJA = 111.1°C/W, supporting reliable operation in compact industrial and medical PCB layouts without forced airflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-resolution SAR ADC applications.

Compared with ADS8883IDRCR, ADS8863IDRCT trades resolution and common-mode range for cost, while ADS8881IDRCR increases speed at the expense of power and layout robustness-making ADS8883IDRCR the optimal balance for 18-bit, 680-kSPS, low-power, true-differential applications.

Availability

ADS8883IDRCR is available at Aetrix Electronics and suitable for high-precision sensor interfaces, battery-powered portable instrumentation, and automated test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADS8883IDRCR 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 decades of expertise in precision data converters and industrial-grade IC design.

The ADS8883IDRCR belongs to TI's 18-bit SAR ADC family engineered for high-fidelity, low-power, true-differential signal acquisition in instrumentation, medical, and test equipment-emphasizing noise performance, linearity, and flexible interface scalability.

FAQ

What is the maximum sample rate of the ADS8883IDRCR?

The ADS8883IDRCR achieves a maximum throughput rate of 680 kSPS with no latency output. At this rate, conversion time is 500–930 ns and acquisition time is 540 ns. The device maintains full 18-bit performance-including 100 dB SNR and ±3.0 LSB INL-across the full industrial temperature range (–40°C to +85°C) when operated within specified supply and reference conditions.

Does the ADS8883IDRCR support true-differential input with variable common-mode voltage?

Yes, the ADS8883IDRCR supports true-differential input with a wide common-mode voltage range from 0 V to VREF, delivering 90 dB minimum CMRR across that range. Unlike many SAR ADCs constrained to VCM = VREF/2, its unique common-mode detection and rejection block allows direct connection to sensors with arbitrary common-mode offsets-such as isolated amplifiers or ungrounded bridge circuits-without signal conditioning.

What digital interface modes does the ADS8883IDRCR support?

The ADS8883IDRCR supports three SPI-compatible digital interface modes: 3-wire (CONVST as chip select), 4-wire (DIN as chip select), and daisy-chain (shared SCLK and CONVST across multiple devices). All modes operate up to 36 MHz SCLK and include precise timing specifications-for example, 13.4 ns SCLK-to-DOUT delay and 5 ns SCLK/CONVST setup/hold-ensuring deterministic multi-device synchronization.

How does power consumption scale with throughput in the ADS8883IDRCR?

ADS8883IDRCR power consumption scales linearly with sample rate: 4.2 mW at 680 kSPS, 0.6 mW at 100 kSPS, and 60 µW at 10 kSPS. This scaling arises from its SAR architecture, where internal switching activity directly correlates with conversion frequency. Additionally, the device automatically enters a 50 nA power-down state during acquisition, further optimizing energy use in duty-cycled applications.

What package type and thermal characteristics apply to the ADS8883IDRCR?

The ADS8883IDRCR is supplied in a 10-pin SON (DRC) package with an exposed thermal pad. Its thermal metrics include θJA = 111.1°C/W and θJB = 45.9°C/W. Texas Instruments specifies that the thermal pad must be soldered to the PCB ground plane to achieve these values-ensuring reliable thermal performance in space-constrained industrial and medical PCB designs without forced cooling.