器件名称: AD9040APWB
功能描述: 10-Bit 40 MSPS A/D Converter
文件大小: 192.57KB 共12页
简 介:a
FEATURES Low Power: 940 mW 53 dB SNR @ 10 MHz AIN On-Chip T/H, Reference CMOS-Compatible 2 V p-p Analog Input Fully Characterized Dynamic Performance APPLICATIONS Ultrasound Medical Imaging Digital Oscilloscopes Professional Video Digital Communications Advanced Television (MUSE Decoders) Instrumentation
ENCODE AIN GND T/H
10-Bit 40 MSPS A/D Converter AD9040A
FUNCTIONAL BLOCK DIAGRAM
AMP ARRAY T/H
VOUT
BANDGAP REFERENCE
5-BIT ADC
6-BIT ADC
VREF
REF AMP ERROR CORRECTION
BPREF
DECODE LOGIC
DECODE LOGIC
AD9040A
10
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The AD9040A is a complete 10-bit monolithic sampling analogto-digital converter (ADC) with on-board track-and-hold and reference. The unit is designed for low cost, high performance applications and requires only an encode signal to achieve 40 MSPS sample rates with 10-bit resolution. Digital inputs and outputs are CMOS compatible; the analog input requires a signal of 2 V p-p amplitude. The two-step architecture used in the AD9040A is optimized to provide the best dynamic performance available while maintaining low power requirements of only 940 mW typically; maximum dissipation is 1.1 watt at 40 MSPS. The signal-to-noise ratio (SNR), including harmonics, is 53 dB, or 8.5 ENOB, when sampling an analog input of 10.3 MHz at 40 MSPS. Competitive devices perform at less than 7.5 ENOB and require external references and larger input signals. The AD9040A A/D converter is available as either a 28-lead plastic DIP or a 2……
