Texas Instruments ADS7853IPWR

Overview

ADS7853IPWR from Texas Instruments is a dual, simultaneous-sampling, 14-bit analog-to-digital converter (ADC) with 1 MSPS throughput per channel, ±2-LSB max INL, 82-dB SNR, and support for single-ended and pseudo-differential inputs. It operates from 5-V AVDD and 3.3-V DVDD, features dual programmable 2.5-V internal references, and targets high-precision motor control and power quality measurement systems.

For engineers reviewing the ADS7853IPWR datasheet, ADS7853IPWR pinout, ADS7853IPWR application, or ADS7853IPWR equivalent, this page delivers verified specifications, validated pin functions, confirmed dual-channel timing behavior, and real-world implementation context for industrial embedded signal acquisition.

Technical Context

The ADS7853IPWR integrates two independent SAR ADC cores with synchronized sampling control, enabling true simultaneous capture of two analog signals without inter-channel skew. Each channel includes dedicated reference buffers, programmable gain calibration registers, and configurable serial interface timing (16- or 32-clock modes).

It supports flexible reference configurations: internal 2.5-V reference (±1 mV matching between A/B), external reference input (2.4 V to AVDD), or 2×VREF extended range operation. Aperture jitter is specified at 50 ps, and ADC-to-ADC isolation reaches –100 dB at 15 kHz, critical for noise-sensitive dual-sensor applications.

Key Specifications

Pinout & Package

Packaged in TSSOP-16 (5.00 mm × 4.40 mm), the ADS7853IPWR uses a standard 16-pin surface-mount footprint compatible with automated assembly and thermal relief design.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, simultaneous-sampling ADC applications.

Compared with ADS7854IPWR, the ADS7853IPWR offers broader input flexibility and lower system cost for mixed single-ended/differential designs; versus ADS8353IPWR, it trades 2 bits of resolution for 67% higher throughput-critical for real-time motor control where latency matters more than static precision.

Availability

ADS7853IPWR is available at Aetrix Electronics and suitable for motor control, protection relay, and power quality measurement applications requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing.

Supply support for ADS7853IPWR 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 conversion and industrial signal chain solutions.

The ADSxx53 family-including ADS7853IPWR-is designed specifically for high-reliability, dual-channel simultaneous sampling in motor drives, energy infrastructure, and factory automation systems operating across extended industrial temperatures.

FAQ

What is the maximum sampling rate supported by the ADS7853IPWR?

The ADS7853IPWR supports 1 million samples per second (1 MSPS) per channel in simultaneous sampling mode. This throughput is achievable in both 16-clock and 32-clock serial interface configurations, with the 16-clock mode optimizing speed and the 32-clock mode improving noise immunity and DC accuracy. The device maintains full 14-bit performance across its entire –40°C to +125°C operating range.

Does the ADS7853IPWR require external reference components?

No, the ADS7853IPWR includes two fully buffered, matched 2.5-V internal reference outputs (REFIO_A and REFIO_B) that can be used directly for both ADC channels. Each reference is specified at 2.495 V to 2.505 V with ±1 mV matching between channels at 25°C. A 10-µF ceramic capacitor is recommended at each REFIO pin for stability, but no external reference IC or resistor network is required for basic operation.

How does the ADS7853IPWR handle simultaneous sampling across two channels?

The ADS7853IPWR achieves true simultaneous sampling using a shared aperture clock and matched sample-and-hold circuits for both channels. Its datasheet specifies an aperture delay match of ≤40 ps between A and B channels, ensuring phase-coherent acquisition critical for vector calculations. The device outputs converted data on separate SDO_A and SDO_B pins, eliminating serialization bottlenecks during concurrent readout.

What package options are available for the ADS7853IPWR?

The ADS7853IPWR is offered exclusively in the TSSOP-16 package (5.00 mm × 4.40 mm body size), with lead finish specified as NiPdAu. This RoHS-compliant, surface-mount package supports standard reflow profiles and provides adequate thermal dissipation for industrial applications. While the ADSxx53 family also includes a WQFN-16 variant, the 'PWR' suffix explicitly denotes the TSSOP-16 packaging for this part number.

Can the ADS7853IPWR interface with a 1.8-V microcontroller?

Yes, the ADS7853IPWR supports digital I/O operation down to 1.65 V on its DVDD rail, making it compatible with 1.8-V logic systems. Its digital inputs (CS, SCLK, SDI) accept VIH ≥ 0.7 × DVDD and VIL ≤ 0.3 × DVDD, while outputs (SDO_A, SDO_B) drive VOH ≥ 0.8 × DVDD and VOL ≤ 0.2 × DVDD under 500-µA load. Level-shifting is not required when DVDD = 1.8 V, provided timing margins are verified per the serial interface timing table.