GENERAL DESCRIPTION

The AD9253 is a quad, 14-bit, 80 MSPS/105 MSPS/125 MSPS analog-to-digital converter (ADC) with an on-chip sample and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 125 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.

The ADC requires a single 1.8 V power supply and LVPECL-/CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications.

FEATURES

1.8 V supply operation

Low power: 110 mW per channel at 125 MSPS with scalable power options

SNR = 74 dB (to Nyquist)

SFDR = 90 dBc (to Nyquist)

DNL = ±0.75 LSB (typical); INL = ±2.0 LSB (typical)

Serial LVDS (ANSI-644, default) and low power, reduced signal option (similar to IEEE 1596.3)

650 MHz full power analog bandwidth

2 V p-p input voltage range

Serial port control

Full chip and individual channel power-down modes

Flexible bit orientation

Built-in and custom digital test pattern generation

Multichip sync and clock divider

Programmable output clock and data alignment

Programmable output resolution

Standby mode

APPLICATIONS

Medical ultrasound

High speed imaging

Quadrature radio receivers

Diversity radio receivers

Test equipment

AD9253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AD9253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。