ICL7106 Datasheet, PDF (1/4 Pages) Intersil Corporation – 3 1/2 Digit, LCD/LED Display, A/D Converters

ICL7106/7107
Description
The ICL7106 and ICL7107 are high performance,low power 3¹/ 2 digit A/D converters. Included are seven
segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a
liquid crystal display (LCD) and includes a multiplexed backplane drive, the ICL7107 will directly drive an
instrument size light emitting diode (LED) display. The ICL7106 and ICL7107 bring together a combination of
high accuracy, versatility, and true economy. True differential inputs and reference are useful in all systems, but
give the designer an uncommon advantage when measuring load cells, strain gauges and other bridge type
transducers. Finally he true economy of single power Supply operation ( ICL7106 ),
enables a high performance panel meter to be built with the addition of only 10 passive Components and
display.
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Features
• _Guaranteed Zero _{Reading for 0V input on All Scales}
ICL7106, ICL7107
TOP VIEW
V+ ¹
D1 ₂
C1 ₃
40 OSC 1
39 OSC 2
38 OSC 3
• True Polarity at Zero for Precise Null Detection
• True Differential input and Reference, Direct Display
• _Drive
- LCD ICL7106
- LED ICL7107
• Low Noise-Less Than 15 uVp-p
• On Chip Clock and Reference
• Low Power DissipationTypically Less Than 10mW
• ^{No Additional Active Circuits Required}
• New Small Outline Surface Mount Package Available
(1’s)
(10’s)
(100’s)
B1 4
A1 5
F1 6
G1 7
E1 8
D2 9
C2 10
B2 11
A2 12
F2 13
E2 14
D3 15
B3 16
-F3 17
37 TEST
36 ^{REF HI}
35 REF LO
34 ^CREF+
CREF-
33 _COMMON
32 IN HI
31 ^{IN LO}
30 ^A-Z
29 ^BUFF
28 ^INT
27 V-
26 ^{G2 (10’s)}
25 ^C3
24 ^A3
E3 18
23
(1000) AB4 19
22 G3
(MINUS)
POL 20
21 BP/GND
Absolute Maximum Ratings
Supply Voltage
ICL7106, V+ to V-.......................................................15V
ICL7107, V+ to GND...................................................6V
ICL7107, V- to GND....................................................-9V
Analog input Voltage (Either input) (Note 1)..................V+ to V-
Reference input Voltage (Either input)...........................V+ to V-
Clock input
ICL7106......................................................TEST to V+
ICL7107.......................................................GND to V+
BEIJING ESTEK ELECTRONICS CO.,LTD
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