HI7131CM44 INTERSIL [Intersil Corporation], HI7131CM44 Datasheet

HI7131CM44

Manufacturer Part Number

HI7131CM44

Description

3 1/2 Digit, Low Power, High CMRR, LCD/LED Display-Type A/D Converters

Manufacturer

INTERSIL [Intersil Corporation]

Datasheet

1.HI7131CM44.pdf (21 pages)

Current page: 1 of 21
Download datasheet (212Kb)

August 1997

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207

Features

• 120dB CMRR Equal to 0.01 Count/V of Common

• Fast Recovery from Input Overrange Results “Correct

• Guaranteed 0000 Reading for 0V Input

• True Polarity at Zero for Precise Null Detection

• 1pA Input Current (Typ)

• True Differential Input and Reference

• Single or Dual Supply Operation Capability

• Direct LCD Display Drive - HI7131

• Direct LED Display Drive - HI7133

• Low Noise, 15 V

• Low Power Dissipation, Guaranteed Less Than 1mW,

• No Additional Active Components Required

Applications

• Handheld Instruments

• Basic Measurements: Voltage, Current, Resistance

• DMMs and DPMs

Mode Voltage Error

First-Reading” After Overload

Hangover

Results 8000 Hours (Typ) 9V Battery Life

Pressure, Temperature, Fluid Flow and Level, pH,

Weight, Light Intensity

P-P

Without Hysteresis or Overrange

Intersil Corporation 1999

HI7131, HI7133

3-1826

LCD/LED Display-Type A/D Converters

Description

The Intersil HI7131 and HI7133 are 3

ers that have been optimized for superior DC Common

Mode Rejection (CMRR) when used with a split 5V supply

or a single 9V battery. The HI7131 contains all the neces-

sary active components on a single IC to directly interface an

LCD (Liquid Crystal Display). The supply current is under

100 A and is ideally suited for battery operation. The HI7133

contains all the necessary active components on a single IC

to directly interface an LED (Light Emitting Diode).

The HI7131 and HI7133 feature high accuracy performance

like, 120dB of CMRR, auto-zero to less than 10 V of offset,

fast recovery from over load, zero drift of less than 1 V/

input bias current of 10pA maximum, and rollover error of

less than one count. A true differential signal and reference

inputs are useful features in all systems, but gives the

designer an advantage when measuring load cells, strain

gauges and other bridge-type transducers.

The HI7131 and HI7133 are supplied in a 40 lead plastic DIP

and a 44 lead metric plastic quad ﬂatpack package.

Ordering Information

HI7131CPL

HI7131CM44

HI7133CPL

HI7133CM44

PART NO.

Digit, Low Power, High CMRR,

RANGE (

TEMP.

0 to 70

40 Ld PDIP

44 Ld MQFP

40 Ld PDIP

44 Ld MQFP

PACKAGE

File Number

digit, A/D convert-

E40.6

Q44.10x10

E40.6

Q44.10x10

PKG. NO.

3373.2

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