ICL7116
Description
The Intersil ICL7116 are high performance, low power, 3
1 2
digit, A/D converters. Incl uded are seven
/
segment decoders, display drivers, a reference, and a cl ock. The ICL7116 is designed to interface with
a liquid crystal display (LCD) and includes a multiplexed backplane drive.The ICL7116 have all of the featur
es of the ICL7106 with the additi on of a HOLD Reading input.
With
this input, it is possible to make a
measurement and retain the value on the display indefinitely. To make room for this feature the reference
low input has been connected to Common internally rather than being fully differential.
These circuits retain the accuracy, versatility, and true economy ofthe ICL7106. They feature
auto-zero to less than 10µV, zero drift of less than 1µV/ C, input
0
bias current of 10pA maximum, and roll
economy of
over error of less than one count. The versatility of true different ial input is of particular advantage when
measuring load cells, strain gauges and other bridge-ty pe transducers. And finally, the true
of only eleven passive components and a display.
single power supply operation (ICL7116) enables a high performance panel me ter to be built with the addition
Features
•
•
•
•
•
HOLD Reading Input Allows Indefinite Display Hold
Guaranteed Zero Reading for 0V Input
True Polarity at Zero for Precise Null Detection
1pA Typical Input Current
Direct Display Drive
- LCD ICL7116
•
Low Noise - Less Than 15µV
P-P
(Typ)
•
On Chip Clock and Reference
•
Low Power Dissipation - Typically Less Than 10mW
•
No Additional Active Circuits Required
•
Surface Mount Package Available
Ope r a t ing Cond i t ion s
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . .0
0
C to 70
0
C
BEIJING ESTEK ELECTRONICS CO.,LTD
1
ESTEK [ Estek Electronics Co. Ltd ]
