ADC3908D125中文资料8 位、双通道、125MSPS ADC 单时钟周期延迟单输入或差分输入引脚控制数据手册TI规格书

描述 Description

The ADC3908Dx and ADC3908Sx are a family of ultra-low power 8-bit 125MSPS high-speed dual and single channel analog-to-digital converters. High-speed control loops benefit from the short latency of only 1 clock cycle. The ADC consumes only 90mW at 125MSPS with a power consumption that scales with lower sampling rates.

The ADC3908Dx and ADC3908Sx uses parallel DDR or SDR CMOS interface to output the data, and can be driven at +1.8V or +3.3V to accommodate various receiver requirements. The analog input and output interface can be easily configured via pin control (Interface Configuration Table). The device is a pin-to-pin compatible family of ADCs with 8 and 10-bit resolution and different speed grades. The device is available in a 32-pin VQFN package, and supports industrial temperature range from -40 to +105°C.

特性 Features

Sampling rate up to 125MSPS

Latency: 1 clock cycle

Low power (2 channel):

90mW at 125MSPS

56mW at 25MSPS

3mW in PD mode



Small footprint: 32-VQFN (4mm x 4mm)

Single or dual channel ADC

Internal reference

No missing codes, ±0.25 LSB INL

Buffered, differential or single ended inputs

Input bandwidth: 150MHz (3dB)

Single 1.8V supply

Optional 3.3VIO capability



Industrial temperature range: -40°C to 105°C

Parallel (SDR, DDR) CMOS interface

Spectral performance (FSCLK = 125MSPS, fIN = 5 MHz):

SNR: 49.8dBFS

SFDR: 60dBFS