ADS7842 12 位 4 通道并行输出采样模数转换器

ADS7842
Resolution(Bits) 12
Sample Rate (max) 200kSPS
Architecture SAR
Power Consumption(Typ)(mW) 0.84
SINAD(dB) 72
SNR(dB) 72
SFDR(dB) 78
DNL(Max)(+/-LSB) 1
INL(Max)(+/-LSB) 1
No Missing Codes(Bits) 12
No. of Supplies 1
Analog Voltage AV/DD(Min)(V) 2.7
Analog Voltage AV/DD(Max)(V) 5.25
Logic Voltage DV/DD(Min)(V) 2.7
Logic Voltage DV/DD(Max)(V) 5.25
Input Configuration Range Vref
Reference Mode Ext
Rating Catalog
Pin/Package 20SSOP, 20SSOP/QSOP
# Input Channels 8
Operating Temperature Range(°C) -40 to 85 

The ADS7842 is a complete, 4-channel, 12-bit Analog-to-Digital Converter (ADC). It contains a 12-bit, capacitorbased, Successive Approximation Register (SAR) ADC with a sample-and-hold amplifier, interface for microprocessor use, and parallel, 3-state output drivers. The ADS7842 is specified at a 200kHz sampling rate while dissipating only 2mW of power. The reference voltage can be varied from 100mV to VCC with a corresponding LSB resolution from 24µV to 1.22mV. The ADS7842 is tested down to 2.7V operation.

Low power, high speed, and an onboard multiplexer make the ADS7842 ideal for battery-operated systems such as portable, multi-channel dataloggers and measurement equipment. The ADS7842 is available in an SSOP-28 package and is tested over the -40°C to +85°C temperature range.

ADS7842 特性
ADS7842 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚
ADS7842E ACTIVE -40 to 85 3.65 | 1ku SSOP (DB) | 28
ADS7842E/1K ACTIVE   3.30 | 1ku SSOP (DB) | 28
ADS7842E/1KG4 ACTIVE   3.30 | 1ku SSOP (DB) | 28
ADS7842EB ACTIVE   4.30 | 1ku SSOP (DB) | 28
ADS7842EB/1K ACTIVE   3.95 | 1ku SSOP (DB) | 28
ADS7842EB/1KG4 ACTIVE   3.95 | 1ku SSOP (DB) | 28
ADS7842EBG4 ACTIVE   4.30 | 1ku SSOP (DB) | 28
ADS7842EG4 ACTIVE -40 to 85 3.65 | 1ku SSOP (DB) | 28
ADS7842 应用技术支持与电子电路设计开发资源下载
  1. ADS7842 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls