Texas Instruments ADS7890IPFBR

Mfr. Part

ADS7890IPFBR

Manufacturer

Luminary Micro Texas Instruments

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Detailed Description

High speed 14-bit SAR ADC with SPI interface. Single channel, pseudo-differential input. 1.25 MSPS throughput for fast data capture. Dual supply operation with 5 V analog and 2.7 V to 5.25 V digital. Internal or external reference supported. Industrial temperature range. 48-pin TQFP package, RoHS3 compliant. Ideal for precise, fast, and simple-to-integrate data acquisition in space-limited designs.

Key Features

Resolution 14 bits for fine measurement detail

Throughput 1.25 MSPS for fast conversions

Architecture SAR for low latency and low power

Interface SPI simple, widely supported serial interface

Inputs Single channel, pseudo-differential

Supplies Analog 5 V, Digital 2.7 V to 5.25 V

Reference Internal or external selectable

Operating temperature -40 C to 85 C

Mounting type Surface mount

Package 48-TQFP 7 mm x 7 mm

Base product number ADS7890

RoHS status ROHS3 compliant

Configuration Sample and hold front end S H ADC

Key Advantages

High speed with 1.25 MSPS for responsive control loops and fast sensor reads

14-bit accuracy for better precision without jumping to larger, slower converters

Flexible digital supply range for easy interfacing to 3.3 V and 5 V logic systems

Internal reference option simplifies BOM and layout, external reference option enables higher accuracy when needed

Simple SPI interface reduces firmware effort and pin count

Stable performance across -40 C to 85 C for industrial environments

Proven Texas Instruments quality and reliability, supported by Y-IC distribution and service

Packaging

Type 48-pin TQFP surface-mount

Material Molded epoxy plastic body with copper leadframe and matte tin lead finish lead-free, RoHS3 compliant

Size Body 7 mm x 7 mm nominal, low-profile thickness approx 1 mm typical

Pin configuration 48 leads around the perimeter with typical functions including SPI pins SCLK, CS, DOUT, DIN, analog inputs IN plus and IN minus pseudo-differential, reference pins REF plus and REF minus, supplies AVDD 5 V and DVDD 2.7 V to 5.25 V, grounds AGND and DGND, and control pins as defined in the datasheet

Lead pitch Typically 0.5 mm for 48-TQFP packages

Thermal characteristics Typical θJA for 48-TQFP depends on PCB design often in the range of roughly 60 to 100 C W. Rated for standard Pb-free reflow up to 260 C. Typical MSL for TQFP packages is 3. Always confirm in the datasheet and TI quality documents

Electrical properties Core performance 14-bit SAR, 1.25 MSPS, pseudo-differential input, SPI. Analog supply 5 V. Digital supply 2.7 V to 5.25 V. Internal external reference options. See datasheet for input range, INL DNL, power, and timing details

Shipment format Tape and Reel TR suitable for automated SMT lines

Lifecycle

Current status Based on publicly available information and the widespread use of TI SAR ADCs, ADS7890 is a stable, active product. For the latest formal status confirm with Y-IC sales

Packaging variants ADS7890IPFBR tape and reel and ADS7890IPFB tray are common ordering options. Verify specific part codes for logistics needs

Alternatives If you need functionally similar 14-bit SAR ADCs with SPI and high throughput, there are options across TI and other vendors. Requirements such as pin compatibility, input type, reference scheme, and supply rails vary. Examples to evaluate not necessarily pin compatible include TI SAR ADCs in the ADS88xx and ADS78xx families, and 14-bit SAR ADCs from Analog Devices AD794x series and Microchip MCP3311x series. Always check datasheets and contact Y-IC for a tailored cross-reference and design guidance

If you need a guaranteed pin-for-pin or drop-in alternative Contact our sales team via the Y-IC website for the most accurate, up-to-date cross list and lifecycle guidance

Key Application Areas

Industrial automation fast single channel measurement for control and monitoring

Motor control current and voltage sensing with low latency

Power systems high speed data acquisition in digital power and UPS

Test and measurement handheld meters, data loggers, portable analyzers

Medical devices patient monitoring and instrumentation where precision and speed matter

Communications RF baseband and IF sampling in control paths and telemetry

Embedded systems general purpose high speed sensing with simple SPI interface

Datasheet

Y-IC hosts the most authoritative datasheet for ADS7890IPFBR on our product page. We recommend downloading it now from this page to get full specifications, pin details, timing, layout guidance, and quality data.

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