Texas Instruments ADS7884SDBVR

Overview

ADS7884SDBVR from Texas Instruments is a 10-bit, 3-MSPS SAR analog-to-digital converter with zero latency, ±0.3 LSB INL/DNL, 61.7 dB SINAD, and 48-MHz serial interface. It operates from 2.7 V to 5.5 V, consumes 6.8 mW at 3 V/2.5 MSPS, and features unipolar 0–VDD input range - used in motor current sensing and high-speed closed-loop control systems.

For engineers reviewing the ADS7884SDBVR datasheet, ADS7884SDBVR pinout, ADS7884SDBVR application, or ADS7884SDBVR equivalent, key selection criteria include guaranteed 10-bit no-missing-codes performance, 30 MHz full-power bandwidth, 1 µA powerdown current, SOT23-6 package compatibility, and CMOS-level digital I/O tolerant up to 5.5 V independent of VDD.

Technical Context

The ADS7884SDBVR implements a capacitor-based successive approximation register (SAR) architecture with integrated sample-and-hold. Conversion is initiated on the falling edge of CS, and data is output MSB-first over a 16-clock frame containing two leading zeros, ten data bits, and four trailing zeros.

Its serial interface requires only CS and SCLK for glueless microprocessor/DSP interfacing. Digital inputs accept voltages up to 5.5 V regardless of VDD (2.7–5.5 V), relaxing power sequencing constraints and enabling mixed-supply system integration without level shifters.

Key Specifications

Pinout & Package

ADS7884SDBVR is housed in a 6-pin SOT23 package (DBV), measuring 2.9 mm × 1.6 mm × 1.0 mm, suitable for space-constrained industrial and automotive PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS7886IDBVR and ADS7887IDBVR, the ADS7884SDBVR uniquely balances 3-MSPS speed, 10-bit linearity, and ultra-low powerdown current - making it optimal for battery-operated, real-time embedded control where latency and energy efficiency are co-critical.

Availability

ADS7884SDBVR is available at Aetrix Electronics and suitable for motor current sensing, optical networking monitoring, and battery-powered data acquisition requiring stable component supply across automotive, industrial, and medical design cycles.

Supply support for ADS7884SDBVR 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 signal chain solutions.

The ADS7884 belongs to TI's micro-power miniature SAR converter family targeting high-speed, low-energy applications - designed specifically for space- and power-constrained systems needing guaranteed 10-bit performance from –40°C to 125°C.

FAQ

What is the maximum sample rate of the ADS7884SDBVR and under what conditions?

The ADS7884SDBVR achieves a maximum throughput rate of 3 MSPS when operated with VDD between 3.6 V and 5.5 V and a 48-MHz SCLK. At VDD = 2.7 V to 3.6 V, the maximum rate is 2.5 MSPS. This is confirmed in the ADS7884 SPECIFICATIONS table under "Maximum throughput rate" with test condition "48-MHz SCLK, VDD = 5 V". The ADS7884SDBVR maintains full 10-bit performance across this range.

Does the ADS7884SDBVR require an external reference voltage?

No, the ADS7884SDBVR uses its VDD supply as the internal reference, establishing a unipolar input range of 0 V to VDD. This eliminates the need for external reference ICs like REF3030 in most applications. The device's reference is trimmed during production, ensuring ±0.2 LSB gain error and supporting direct connection to low-drift system supplies or LDO outputs.

What is the power consumption of the ADS7884SDBVR in normal operation and powerdown mode?

In normal operation, the ADS7884SDBVR draws 3 mA typical at VDD = 5 V and 3 MSPS, equating to 15 mW. At VDD = 3 V and 2.5 MSPS, it consumes 2.25 mA (6.8 mW). In powerdown mode with SCLK off, supply current drops to 1 µA - verified in the "POWER SUPPLY REQUIREMENTS" section of the datasheet under "Power down state supply current".

Can the ADS7884SDBVR interface directly with a 5-V microcontroller while powered from a 3-V supply?

Yes. The ADS7884SDBVR's digital inputs (CS, SCLK) tolerate voltages up to 5.5 V regardless of VDD, allowing direct connection to 5-V logic without level shifters. However, its digital output (SDO) levels are referenced to VDD - so at VDD = 3 V, VOH ≈ 2.8 V and VOL ≤ 0.4 V, which remains compatible with 5-V-tolerant MCU inputs.

What package type and pin count does the ADS7884SDBVR use?

The ADS7884SDBVR uses a 6-pin SOT23 package (DBV variant), with dimensions of 2.9 mm × 1.6 mm × 1.0 mm. This is explicitly stated in the "PACKAGE/ORDERING INFORMATION" table, where "ADS7884SDBVR" maps to "6-Pin SOT23", "DBV" package type, and "–40°C to 125°C" temperature range.