AD7939BSU

$5.47

Description：10-BIT SAR ADC, 8 CH, PARALLEL
Series：AD7939

SKU:a06e28f4d3a7 Category: Analog to Digital Converters (ADC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：10-BIT SAR ADC, 8 CH, PARALLEL
Series：AD7939
Mfr：Analog Devices Inc.
Package：Bulk
Number of Bits：10
Sampling Rate (Per Second)：1.5M
Number of Inputs：8
Input Type：Differential, Pseudo-Differential, Single Ended
Data Interface：Parallel
Configuration：MUX-S/H-ADC
Ratio - S/H:ADC：1:01
Number of A/D Converters：1
Architecture：SAR
Reference Type：External, Internal
Voltage - Supply, Analog：2.7V ~ 5.25V
Voltage - Supply, Digital：2.7V ~ 5.25V
Features：-
Operating Temperature：-40°C ~ 85°C
Package / Case：32-TQFP
Supplier Device Package：32-TQFP (7x7)
Mounting Type：Surface Mount

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AD7939BSU

Overview

The AD7939BSU is a monolithic, high-speed, 8-channel, 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.7V to 5.25V power supply and features an on-chip low-noise, wideband sampling track-and-hold amplifier. The device supports differential, pseudo-differential, and single-ended input configurations with a throughput rate of 1.5Msps. It utilizes a parallel digital interface for data output and is housed in a 32-lead TQFP package measuring 7mm x 7mm x 1mm.

Feature Summary

10-bit resolution with 1.5Msps throughput rate
8 multiplexed inputs supporting differential, pseudo-differential, and single-ended modes
On-chip low-noise, wideband sampling track-and-hold amplifier
Parallel digital interface compatible with microprocessors and DSPs

Applications

Industrial process control systems
Data acquisition systems
Battery-powered instrumentation
Medical equipment

Procurement Notes

Verify the specific suffix 'SU' against the manufacturer's official datasheet to confirm pinout compatibility and RoHS status. Ensure the parallel interface requirements match the target system design. Confirm operating temperature range specifications (-40°C to +85°C) align with environmental constraints before procurement.

Selection Notes

Select this component when 8 channels are required at 10-bit resolution with high speed. Compare against the AD7938 if 12-bit resolution is needed at a lower 625ksps rate. Verify that the parallel interface fits the PCB layout constraints compared to serial alternatives like the AD7937.

Part Context

The AD7939BSU belongs to the AD7938/AD7939 family of high-speed ADCs. It shares architectural similarities with the AD7938 but offers higher resolution (10-bit vs 12-bit) and faster throughput (1.5Msps vs 625ksps). Both devices utilize the same 32-lead TQFP package and similar input structures.

Replacement Considerations

The AD7938BSUZ is a related part offering 12-bit resolution at 625ksps. Direct substitution requires verifying if the reduced speed and increased resolution meet system requirements. Interface timing must be re-evaluated due to different throughput characteristics.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.