PRODUCT DESCRIPTION

The AD9281 is a complete dual channel, 28 MSPS, 8-bit CMOS 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 MHz sampling rate and wide input bandwidth will cover both narrow band and spread-spectrum channels. The AD9281 integrates two 8-bit, 28 MSPS ADCs, two input buffer amplifiers, an internal voltage reference and multiplexed digital output buffers.

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