GENERAL DESCRIPTION

The AD9640 is a dual 14-bit, 80/105/125/150 MSPS analog-todigital converter (ADC). The AD9640 is designed to support communications applications where low cost, small size, and versatility are desired.

FEATURES

SNR = 71.8 dBc (72.8 dBFS) to 70 MHz @ 125 MSPS

SFDR = 85 dBc to 70 MHz @ 125 MSPS

Low power: 750 mW @ 125 MSPS

SNR = 71.6 dBc (72.6 dBFS) to 70 MHz @ 150 MSPS

SFDR = 84 dBc to 70 MHz @ 150 MSPS

Low power: 820 mW @ 150 MSPS

1.8 V analog supply operation

1.8 V to 3.3V CMOS output supply or 1.8 V LVDS

output supply

Integer 1 to 8 input clock divider

IF sampling frequencies to 450 MHz

Internal ADC voltage reference

Integrated ADC sample-and-hold inputs

Flexible analog input range: 1 V p-p to 2 V p-p

Differential analog inputs with 650 MHz bandwidth

ADC clock duty cycle stabilizer

95 dB channel isolation/crosstalk

Serial port control

User-configurable, built-in self-test (BIST) capability

Energy-saving power-down modes

Integrated receive features

Fast detect/threshold bits

Composite signal monitor

APPLICATIONS

Communications

Diversity radio systems

Multimode digital receivers

GSM, EDGE, WCDMA, LTE,

CDMA2000, WiMAX, TD-SCDMA

I/Q demodulation systems

Smart antenna systems

General-purpose software radios

Broadband data applications

AD9640ABCPZ-80属于集成电路（IC） > 模数转换器（ADC）。亚德诺半导体技术有限公司制造生产的AD9640ABCPZ-80模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。