器件名称: AS1538
功能描述: 8-Channel, 12-Bit I
文件大小: 80.29KB 共2页
简 介:AS1538
8 - C h a n n e l , 1 2 - B i t I C A n a l o g - t o - D i g i ta l C o n v e r t e r
Product Brief
1 General Description
The AS1538 is a single-supply, low-power, 12-bit data acquisition device that features a serial IC interface and an 8-channel multiplexer. The analog-to-digital (A/D) converter features a sampleand-hold amplifier an internal asynchronous clock and an internal reference. The combination of an I C serial, 2-wire interface and micropower consumption makes the AS1538 ideal for applications requiring the A/D converter to be close to the input source in remote locations and for applications requiring isolation. The device is available in a TSSOP-16 package.
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2 Key Features
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Single Supply: 2.7 to 5.25V 8-Channel Multiplexer Sampling Rate: 50kSPS No Missing Codes Internal Reference: 2.5V High Speed I C Interface at 3.4MHz <1.5A Full Shutdown Current TSSOP-16 Package
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3 Applications
The device is ideal for voltage-supply monitoring, isolated data acquisition, transducer interfaces, batteryoperated systems, remote data acquisition or any other analog-to-digital conversion application.
Figure 1. Block Diagram
1 CH0 2 CH1 3 CH2 4 CH3 5 CH4 6 CH5 7 CH6 8 CH7 11 COM 10 REFIN/OUT Buffer Internal 2.5V Reference 8-Channel MUX Sample/ Hold Amp CDAC Comparator Successive Approximation Register Serial Interface
15 SDA 14
AS1538
SCL 12 A0 13 A1
9 GND
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AS1538
Product Brief
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