AD7738
Info: : PRODUCTION
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AD7738

8-Channel, 8.5 kHz, 24-Bit Sigma-Delta A/D Converter

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $10.97
Features
  • High Resolution ADC
    • 24 Bits No Missing Codes
    • 0.0015% Nonlinearity
  • Optimized for Fast Channel Switching
    • 18-Bits p-p Resolution (21 Bits Effective) at 500 Hz
    • 16-Bits p-p Resolution (19 Bits Effective) at 8.5 kHz
    • 15-Bits p-p Resolution (18 Bits Effective) at 15 kHz
    • On-Chip Per Channel System Calibration
  • Configurable Inputs
    • 8 Single-Ended or 4 Fully Differential
  • Input Ranges
    • +625 mV, +1.25 V, +2.5 V, 625 mV, 1.25 V, 2.5 V
  • 3-Wire Serial Interface
    • SPI™, QSPI™, MICROWIRE™ and DSP Compatible
    • Schmitt Trigger on Logic Inputs
  • Single-Supply Operation
    • 5 V Analog Supply
    • 3 V or 5 V Digital Supply
  • Package: 28-Lead TSSOP
Additional Details
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The AD7738 is a high precision, high throughput analog front end. True 16-bit peak-to-peak resolution is achievable with a total conversion time of 117 µs (8.5 kHz channel switching) making it ideally suitable for high resolution multiplexing applications.

The AD7738 is based on a sigma-delta architecture and features up to 24 bits of no missing codes performance. The part can be configured via a simple digital interface, which allows users to balance the noise performance against data throughput up to a 15.4 kHz conversion rate. The analog front end features 8 single-ended or 4 fully differential input channels with unipolar or bipolar 625 mV, 1.25 V and 2.5V input ranges and accepts a common mode input voltage from 200 mV above AGND to AVDD-300 mV. The multiplexer output is pinned out externally allowing the user to implement programmable gain or signal conditioning before applying the input signal to the ADC. The differential reference input features “No Reference” detect capability. The ADC also supports per channel system calibration options.

The digital serial interface can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. All interface inputs are Schmitt triggered.

The part is specified for operation over the extended industrial temperature range of -40ºC to +105ºC and is available in 28-lead TSSOP package.

Part Models 2
1ku List Price Starting From $10.97

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7738BRUZ
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Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

Amkor Philippines as an Alternate Site for TSSOP_4.4

Feb 11, 2011

- 10_0005

Halogen Free Material Change for TSSOP Products Assembled at Amkor

AD7738BRUZ

PRODUCTION

AD7738BRUZ-REEL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

arrow down

Amkor Philippines as an Alternate Site for TSSOP_4.4

Feb 11, 2011

- 10_0005

arrow down

Halogen Free Material Change for TSSOP Products Assembled at Amkor

AD7738BRUZ

PRODUCTION

AD7738BRUZ-REEL7

PRODUCTION

Software and Part Ecosystem

Software and Part Ecosystem

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Evaluation Kit

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EVAL-AD7738

AD7738 Evaluation Kit

Tools & Simulations

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