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ICL7107 Datasheet Preview

ICL7107 Datasheet

(ICL7106 / ICL7107) True Differential input and Reference

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ICL7106/7107
Descwrwipw.tDiaotanSheet4U.com
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.
a
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
1




Estek Electronics

ICL7107 Datasheet Preview

ICL7107 Datasheet

(ICL7106 / ICL7107) True Differential input and Reference

No Preview Available !

www.DataSheet4U.com
Electrical Characteristics
ICL7106/7107
Parameters
SYSTEMS PEREFORMANCE
Zero input Reading
Ratiometric Reading
Rollover Error
Linearity
Common Mode rejection Ratio
End Power Supply Character
V+ Supply Current
End Power Supply Character V-
Supply Current
COMMON Pin Analog Common
Voltage
DISPLAY DRIVER ICL7106
OPkN-LPYk Segment Drive Voltage
Pk-Pk Backplane Drive
Voltage
ISCeLg7m1e0n7t OSNinLkYing Current
(Except Pin 19 and 20)
Pin 19 Only
Pin 20 Only
Test conditions
VIN= 0.0V, Full-Scale = 200mV
VIN= V REF, VREF= 100mV
-VIN= +V IN 200mV
Difference in Reading for Equal
Positive and Negative inputs Near
Full-Scale
Full-Scale = 200mV or Full-Scale =
2V Maximum
Deviation from Best Straight Line
Fit (Note 5)
VCM= 1V, V IN= 0V, Full-Scale =
200mV (Note 5)
VIN= 0 (Does Not include LED
Current for ICL7107)
ICL7107 Only
25 k W Between Common and
Positive Supply (With Respect to +
Supply)
V+ = to V- = 9V
V+ = 5V, Segment Voltage = 3V
Min Typ
Max
Unit
-000.0
999
-1
± 000.0
999/1000
± 000.0
1000
+1
Digital Reading
Digital Reading
Counts
-1 – +1
Counts
- 50
-–
-–
2.4 –
-
1.8
1.8
3.2
uV/V
mA
mA
V
45
6
V
58
10 16
47
mA
mA
mA
NOTES:
1.
2.
Input voltages may exceed the supply
Unless otherwise noted, specifications
voltages
apply to
provided
both the
the input
ICL7106
current is limited to
and ICL7107 at TA =
+-25
tested in the circuit of Figure 1. ICL7107 is tested in the circuit of Figure 2.
3. Not tested, guaranteed by design.
uA
°±C, fCLOCK= 48kHz. ICL7106 is
BEIJING ESTEK ELECTRONICS CO.,LTD
2


Part Number ICL7107
Description (ICL7106 / ICL7107) True Differential input and Reference
Maker Estek Electronics
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ICL7107 Datasheet PDF





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