AD9276集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

AD9276属于集成电路（IC）的ADC/DAC-特殊用途。由亚德诺半导体技术有限公司制造生产的AD9276ADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

GENERAL DESCRIPTION

The AD9276 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a variable gain amplifier (VGA) with a low noise preamplifier (LNA); an antialiasing filter (AAF); a 12-bit, 10 MSPS to 80 MSPS analog-to-digital converter (ADC); and an I/Q demodulator with programmable phase rotation.

FEATURES

8 channels of LNA, VGA, AAF, ADC, and I/Q demodulator

Low noise preamplifier (LNA)

Input-referred noise: 0.75 nV/√Hz typical at 5 MHz (gain = 21.3 dB)

SPI-programmable gain: 15.6 dB/17.9 dB/21.3 dB

Single-ended input: VIN maximum = 733 mV p-p/550 mV p-p/367 mV p-p

Dual-mode active input impedance matching

Bandwidth (BW) > 100 MHz

Full-scale (FS) output: 4.4 V p-p differential

Variable gain amplifier (VGA)

Attenuator range: −42 dB to 0 dB

Postamp gain: 21 dB/24 dB/27 dB/30 dB

Linear-in-dB gain control

Antialiasing filter (AAF)

Programmable second-order LPF from 8 MHz to 18 MHz

Programmable HPF

Analog-to-digital converter (ADC)

12 bits at 10 MSPS to 80 MSPS

SNR: 70 dB

SFDR: 75 dB

Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link)

Data and frame clock outputs

CW mode I/Q demodulator

Individual programmable phase rotation

Output dynamic range per channel >160 dBFS/√Hz

Low power: 195 mW per channel at 12 bits/40 MSPS (TGC), 94 mW per channel for CW Doppler

Flexible power-down modes

Overload recovery in <10 ns

Fast recovery from low power standby mode: <2 μs

100-lead TQFP_EP

APPLICATIONS

Medical imaging/ultrasound

Automotive radar