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HI7170IB, HI7179TB, HI7188

Table of contents:
Info of HI7170IB
Info of HI7179TB
Info of HI7188

HI7170IB, HI7179TB, HI7188 Selling Leads, Datasheet

MFG:INTERSIL Package Cooled:04+ D/C:80

HI7170IB, HI7179TB, HI7188 Datasheet download

Five Points

Part Number: HI7170IB

MFG: INTERSIL

Package Cooled: 04+

D/C: 80

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HI7188 Parameters

HI7188 Features

Fully Differential 8-Channel Multiplexer and Reference
Automatic Channel Switching with Zero Latency
240 Conversions Per Second Per Channel
16-Bit Resolution with No Missing Codes
0.0015% Integral Non-Linearity
Fully Software Configurable
- 120dB Rejection of 60/50Hz Line Noise
- Channel Conversion Order and Number of Active Channels
- True Bipolar or Unipolar Input Range Per Channel
- PGIA Gain Per Channel
- 2-Wire or 3-Wire Interface
Chopper Stabilized PGIA with Gains of 1 to 8
Serial Data I/O Interface, SPI Compatible
3 Point System Calibration
Low Power Dissipation of 30mW (Typ)

HI7188 General Description

The HI7188 is an easy-to-use 8-Channel sigma-delta programmable A/D subsystem ideal for low frequency physical and electrical measurements in scientific, medical, and industrial applications. The subsystem has complete onchip capabilities to support moving the intelligence from the system controller and towards the sensors. This gives the designer faster and more flexible configurability without the traditional drawbacks of low throughput per channel, higher power or cost per channel. Extreme design complexity and excessive software overhead is eliminated. The HI7188 contains a fully differential 8 channel multiplexer, Programmable Gain Instrumentation Amplifier (PGIA), 4th order sigma-delta ADC, integrating filter, line noise rejection filters, calibration and data RAMs, clock oscillator, and a microsequencer. Communication with the HI7188 is performed via the serial I/O port, and is compatible with most synchronous transfer formats, including both the Motorola/Intersil 6805/11 series SPI, QSPI and Intel 8051 series SSR protocols. The powerful on-board microsequencer provides automatic conversions on the multiplexed input channels (up to 8) by controlling all channel switching, filtering and calibration. The microsequencer supports on-the-fly multiplexer reconfiguration, forty to fifty times faster throughput than the competition and zero step response delay during internal or external multiplexer channel changes. A simple set of commands gives the user control over calibration, PGIA gain, and bipolar/unipolar modes on a per channel basis. Number of channels to convert, data coding, line noise rejection, etc. is programmed at the chip level. The calibration RAMs allow the user to read and write system calibration data while the data RAMs provide a read support of the conversion results for each channel. This design is effectively eight 16-bit (for 96dB noise-free dynamic range) Sigma-Delta A/D converters combined with a microsequencer and an eight-channel multiplexer in a single package. The HI7188 provides 120dB line-noise rejection at 240 samples/second/channel (in 60Hz linerejection mode) and 200 samples/second/channel (in 50Hz line-rejection mode) base output data rates. By reusing multiplexer channels for the same input, throughput can Fully Differential 8-Channel Multiplexer and Reference

HI7188 Maximum Ratings

Supply Voltage
AV_DD to AV_SS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
DV_DD to DGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+5.5V
Analog Input Pins . . . . . . . . . . . . . . . . . . . . . . . . . . AV_SS to AV_DD
Digital Input, Output and I/O Pins . . . . . . . . . . .. . DGND to DV_DD
ESD Tolerance (No Damage)
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V

HI7188 Features

Fully Differential 8-Channel Multiplexer and Reference
Automatic Channel Switching with Zero Latency
240 Conversions Per Second Per Channel
16-Bit Resolution with No Missing Codes
0.0015% Integral Non-Linearity
Fully Software Configurable
- 120dB Rejection of 60/50Hz Line Noise
- Channel Conversion Order and Number of Active Channels
- True Bipolar or Unipolar Input Range Per Channel
- PGIA Gain Per Channel
- 2-Wire or 3-Wire Interface
Chopper Stabilized PGIA with Gains of 1 to 8
Serial Data I/O Interface, SPI Compatible
3 Point System Calibration
Low Power Dissipation of 30mW (Typ)

HI7188 Typical Application

Using The HI7188 Evaluation Kit

Analog Multiplexers with Overvoltage Protection

Using The HI7188 Serial Interface

HI7188 LabWindows Evaluation Board Program

Using the HI7188 to Create a 64 Channel Multiplexed System

Interfacing the HI7188 to a Microcontroller

Using the HI7188 with a Single Supply

HI7188 Datasheet

A Brief Introduction to Sigma Delta Conversion

HI7188 Connection Diagram

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