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Renesas Electronics Components Datasheet

ICL7136 Datasheet

Low Power Display / A/D Converter

No Preview Available !

DATASHEET
ICL7136
31/2 Digit LCD, Low Power Display, A/D Converter with Overrange Recovery
FN3086
Rev 6.00
July 21, 2005
The Intersil ICL7136 is a high performance, low power 31/2
digit, A/D converter. Included are seven segment decoders,
display drivers, a reference, and a clock. The ICL7136 is
designed to interface with a liquid crystal display (LCD) and
includes a multiplexed backplane drive.
The ICL7136 brings together a combination of high
accuracy, versatility, and true economy. It features auto-zero
to less than 10V, zero drift of less than 1V/oC, input bias
current of 10pA (Max), and rollover error of less than one
count. 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, the true economy of single power
supply operation, enables a high performance panel meter
to be built with the addition of only 10 passive components
and a display.
The ICL7136 is an improved version of the ICL7126,
eliminating the overrange hangover and hysteresis effects,
and should be used in its place in all applications. It can also
be used as a plug-in replacement for the ICL7106 in a wide
variety of applications, changing only the passive
components.
Features
• First Reading Overrange Recovery in One Conversion
Period
• Guaranteed Zero Reading for 0V Input on All Scales
• True Polarity at Zero for Precise Null Detection
• 1pA Typical Input Current
• True Differential Input and Reference, Direct Display Drive
- LCD ICL7136
• Low Noise - Less Than 15VP-P
• On Chip Clock and Reference
• No Additional Active Circuits Required
• Low Power - Less Than 1mW
• Surface Mount Package Available
• Drop-In Replacement for ICL7126, No Changes Needed
• Pb-Free Plus Anneal Available (RoHS Compliant)
Ordering Information
TEMP.
PART NUMBER RANGE (°C)
PACKAGE
PKG.
DWG. #
ICL7136CPL
0 to 70 40 Ld PDIP
E40.6
ICL7136CPLZ
(Note 1)
0 to 70
40 Ld PDIP
E40.6
(Pb-free) (Note 2)
ICL7136CM44
0 to 70 44 Ld MQFP
Q44.10x10
ICL7136CM44Z
(Note 1)
0 to 70
44 Ld MQFP
(Pb-free)
Q44.10x10
ICL7136CM44ZT 44 Ld MQFP Tape and Reel
(Note 1)
(Pb-free)
Q44.10x10
NOTES:
1. Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and
100% matte tin plate termination finish, which are RoHS
compliant and compatible with both SnPb and Pb-free soldering
operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the
Pb-free requirements of IPC/JEDEC J STD-020.
2. Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
FN3086 Rev 6.00
July 21, 2005
Page 1 of 15


Renesas Electronics Components Datasheet

ICL7136 Datasheet

Low Power Display / A/D Converter

No Preview Available !

ICL7136
Pinouts
(PDIP)
TOP VIEW
V+
D1
C1
B1
(1’s) A1
F1
G1
E1
D2
C2
(10’s) B2
A2
F2
E2
D3
B3
(100’s)
F3
E3
(1000) AB4
(MINUS) POL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 OSC 1
39 OSC 2
38 OSC 3
37 TEST
36 REF HI
35 REF LO
34 CREF+
33 CREF-
32 COMMON
31 IN HI
30 IN LO
29 A-Z
28 BUFF
27 INT
26 V-
25 G2 (10’s)
24 C3
23 A3 (100’s)
22 G3
21 BP/GND
(MQFP)
TOP VIEW
NC
NC
TEST
OSC 3
NC
OSC 2
OSC 1
V+
D1
C1
B1
144 43 42 41 40
39
38
37 36
35 34
33
2 32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
NC
G2
C3
A3
G3
BP/GND
POL
AB4
E3
F3
B3
A1 F1 G1 E1 D2 C2 B2 A2 F2 E2 D3
FN3086 Rev 6.00
July 21, 2005
Page 2 of 15


Part Number ICL7136
Description Low Power Display / A/D Converter
Maker Renesas
Total Page 15 Pages
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