AD9446 IC Chip

AD9446（16-Bit, 80/100 MSPS ADC）

Introduction

The AD9446 is a 16-bit, monolithic, sampling analog-to-digital converter (ADC) with an on-chip track-and-hold circuit. It is optimized for performance, small size, and ease of use. The product operates up to a 100 MSPS, providing superior SNR for instrumentation, medical imaging, and radar receivers employing baseband (<100 MHz) IF frequencies.

The ADC requires 3.3 V and 5.0 V power supplies and a low voltage differential input clock for full performance operation.No external reference or driver components are required for many applications. Data outputs are CMOS or LVDS compatible (ANSI-644 compatible) and include the means to reduce the overall current needed for short trace distances.Optional features allow users to implement various selectable operating conditions, including input range, data format select,and output data mode.

The AD9446 is available in a Pb-free, 100-lead, surface- mount,plastic package (100-lead TQFP/EP) specified over theindustrial temperature range -40°C to +85°C.

Features

• 100 MSPS guaranteed sampling rate (AD9446-100)
• 83.6 dBFS SNR with 30 MHz input (3.8 V p-p input, 80 MSPS)
• 82.6 dBFS SNR with 30 MHz input (3.2 V p-p input, 80 MSPS)
• 89 dBc SFDR with 30 MHz input (3.2 V p-p input, 80 MSPS)
• 95 dBFS 2-tone SFDR with 9.8 MHz and 10.8 MHz (100 MSPS)
• 60 fsec rms jitter
• Excellent linearity
  -DNL = ±0.4 LSB typical
  -INL = ±3.0 LSB typical
• 2.0 V p-p to 4.0 V p-p differential full-scale input
• Buffered analog inputs
• LVDS outputs (ANSI-644 compatible) or CMOS outputs
• Data format select (offset binary or twos complement)
• Output clock available
• 3.3 V and 5 V supply operation

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