SNAD01C 查看數據表（PDF） - Sonix Technology Co., Ltd

零件编号

产品描述 (功能)

生产厂家

SNAD01C

8-CHANNEL 8-BIT ADC

Sonix Technology Co., Ltd 

SNAD01C

8-CHANNEL 8-BIT ADC

1. GENERAL DESCRIPTION

SNAD01C is a low cost serial 8-bits ADC with 8 individual input channels. Each channel can be

independently programmed to a digital or analog input mode. In the analog input mode, this

single-ended channel accepts an analog input signal from 0 to VREF and converts the signal into

12-bit digital codes (with 8-bit accuracy guaranteed). In the digital input mode, the channel can be

treated as digital input port and the logic level appears at the channel can be acquired. SNAD01C

has a synchronous 3-wires serial interface. Through this interface, the host CPU can easily control

SNAD01C.

During A-to-D conversion, the typical current consumption is 500uA at 25kHz throughput-rate and

+3V power supply. SNAD01C includes a power-down mode, which reduces maximum current

consumption less than 1uA.

The reference voltage can be varied between 1V and +VCC, providing a corresponding input

voltage range of 0V to VREF. SNAD01C also has an on-chip 1.17V bandgap reference that can be

utilized for constant voltage input (especially for battery monitoring applications). The bandgap

reference circuitry consumes 300µA@3v and can be enabled and disabled.

2. FEATURES

♦ Single Supply: 2.7V ~ 5.25V

♦ Eight Analog/Digital Input Channels.

♦ Internal 1.17v Bandgap Reference for Battery Monitoring. (Channel 7)

♦ Low Power Consumption: typical operating current: 500uA @ 3V, Standby current <1uA.

♦ Up to 25kHz Conversion Rate.

♦ 12-bits ADC with 8-bit effective number of bits

♦ 3-Wire Serial Interface.

3. APPLICATIONS

♦ Battery-Powered Systems

♦ Instrumentation

♦ Portable Data Logging

♦ Test Equipment

♦ Data Acquisition

♦ Process-Control Monitoring

♦ Digital Input Bus Extender

Version: 1.5

3

July 31, 2003

Share Link: