Hot-selling and scarce AD9281ARSZ Dual Channel 8-Bit Resolution CMOS ADC SSOP-28 spot stock

 Product Descriptions

The AD9281 is a complete dual channel, 28 MSPS, 8-bitCMOS ADC . The AD9281 is optimized specifically for applications where close matching between two ADCs is required (e.g.,I/Q channels in communications applications). The 28 MHzsampling rate and wide input bandwidth will cover both narrowband and spread-spectrum channels . The AD9281 integratestwo 8-bit, 28 MSPS ADCs, two input buffer amplifiers, an internalvoltage reference and multiplexed digital output buffers .

Each ADC incorporates a simultaneous sampling sample-andhold amplifier at its input . The analog inputs are buffered; noexternal input buffer op amp will be required in most applications . The ADCs are implemented using a multistage pipelinearchitecture that offers accurate performance and guarantees nomissing codes . The outputs of the ADCs are ported to a multiplexed digital output buffer .

The AD9281 is manufactured on an advanced low cost CMOSprocess, operates from a single supply from 2.7 V to 5.5 V, andconsumes 225 mW of power (on 3 V supply). The AD9281input structure accepts either single-ended or differential signals,providing excellent dynamic performance up to and beyond14 MHz Nyquist input frequencies .

Product Features

Complete Dual Matching ADC

Low Power Dissipation: 225 mW (+3 V Supply)

Single Supply: 2.7 V to 5.5 V

Differential Nonlinearity Error: 0.1 LSB

On-Chip Analog Input Buffers

On-Chip Reference

Signal-to-Noise Ratio: 49.2 dB

Over Seven Effective Bits

Spurious-Free Dynamic Range: –65 dB

No Missing Codes Guaranteed

28-Lead SSOP

Product Specification

Product Photos

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