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ICL7136CPLZ

P1-P3P4-P6P7-P9P10-P12P13-P15
1
®
FN3086.6
ICL7136
31/2 Digit LCD, Low Power Display, A/D
Converter with Overrange Recovery
The Intersil ICL7136 is a high performance, low power 3
1
/
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 10µV, zero drift of less than 1µV/
o
C, 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 15µV
P-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
PART NUMBER
TEMP.
RANGE (°C) PACKAGE
PKG.
DWG. #
ICL7136CPL 0 to 70 40 Ld PDIP E40.6
ICL7136CPLZ
(Note 1)
0 to 70 40 Ld PDIP
(Pb-free) (Note 2)
E40.6
ICL7136CM44 0 to 70 44 Ld MQFP Q44.10x10
ICL7136CM44Z
(Note 1)
0 to 70 44 Ld MQFP
(Pb-free)
Q44.10x10
ICL7136CM44ZT
(Note 1)
44 Ld MQFP Tape and Reel
(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.
Data Sheet July 21, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN3086.6
July 21, 2005
Pinouts
(PDIP)
TOP VIEW
(MQFP)
TOP VIEW
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
V+
D1
C1
B1
A1
F1
G1
E1
D2
C2
B2
A2
F2
E2
D3
B3
F3
E3
(1000) AB4
(MINUS) POL
28
40
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
22
21
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
+
C
REF
-
COMMON
IN HI
IN LO
A-Z
BUFF
INT
V-
G2 (10’s)
C3
A3
G3
BP/GND
(1’s)
(10’s)
(100’s)
(100’s)
OSC 2
NC
OSC 3
TEST
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17
OSC 1
V+
D1
C1
B1
A1 F1 G1 E1 D2 C2
28
27
26
25
24
23
2221201918
B2 A2 F2 E2 D3
B3
F3
E3
AB4
POL
BP/GND
39 38 37 36 35 34
33
32
31
30
29
44 43 42 41 40
IN HI
IN LO
A-Z
BUFF
INT
V-
NC
G2
C3
A3
G3
REF HI
REF LO
C
REF
+
C
REF
-
COMMON
ICL7136
3
FN3086.6
July 21, 2005
Absolute Maximum Ratings Thermal Information
Supply Voltage
ICL7136, V+ to V-. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15V
Analog Input Voltage (Either Input) (Note 1) . . . . . . . . . . . . V+ to V-
Reference Input Voltage (Either Input). . . . . . . . . . . . . . . . . V+ to V-
Clock Input
ICL7136 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST to V+
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Thermal Resistance (Typical, Note 2)
θ
JA
(°C/W)
PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
MQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . .-65
o
C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
(MQFP - Lead Tips Only)
*Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. Input voltages may exceed the supply voltages provided the input current is limited to ±100µA.
2. θ
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications (Note 3)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
SYSTEM PERFORMANCE
Zero Input Reading V
IN
= 0V, Full Scale = 200mV -000.0 ±000.0 +000.0 Digital
Reading
Ratiometric Reading V
lN
= V
REF
, V
REF
= 100mV 999 999/
1000
1000 Digital
Reading
Rollover Error -V
IN
= +V
lN
≅ 200mV Difference in Reading for Equal Positive
and Negative Inputs Near Full Scale
- ±0.2 ±1 Counts
Linearity Full Scale = 200mV or Full Scale = 2V Maximum
Deviation from Best Straight Line Fit (Note 5)
- ±0.2 ±1 Counts
Common Mode Rejection Ratio V
CM
= ±1V, V
IN
= 0V, Full Scale = 200mV (Note 5) - 50 - µV/V
Noise V
IN
= 0V, Full Scale = 200mV (Peak-To-Peak Value Not
Exceeded 95% of Time) (Note 5)
-15-µV
Leakage Current Input V
lN
= 0V (Note 5) - 1 10 pA
Zero Reading Drift V
lN
= 0V, 0°C To 70°C (Note 5) - 0.2 1 µV/°C
Scale Factor Temperature Coefficient V
IN
= 199mV, 0°C To 70°C, (Ext. Ref. 0ppm/×°C) (Note 5) - 1 5 ppm/°C
COMMON Pin Analog Common Voltage 25kΩ Between Common and Positive Supply (With Respect
to + Supply)
2.4 3.0 3.2 V
Temperature Coefficient of Analog
Common
25kΩ Between Common and Positive Supply (With Respect
to + Supply) (Note 5)
- 150 - ppm/°C
SUPPLY CURRENT
V+ Supply Current V
IN
= 0 (Does Not Include Common Current) 16kHz
Oscillator (Note 6)
- 70 100 µA
DISPLAY DRIVER
Peak-To-Peak Segment Drive Voltage and
Peak-To-Peak Backplane Drive Voltage
V+ to V- = 9V (Note 4) 4 5.5 6 V
NOTES:
3. Unless otherwise noted, specifications apply to the ICL7136 at T
A
= 25°C, f
CLOCK
= 48kHz. ICL7136 is tested in the circuit of Figure 1.
4. Back plane drive is in phase with segment drive for “off“ segment, 180 degrees out of phase for “on“ segment. Frequency is 20 times conversion rate.
Average DC component is less than 50mV.
5. Not tested, guaranteed by design.
6. 48kHz oscillator increases current by 20µA (Typ).
ICL7136
P1-P3P4-P6P7-P9P10-P12P13-P15

ICL7136CPLZ

Mfr. #:
Buy ICL7136CPLZ
Manufacturer:
Renesas / Intersil
Description:
LCD Drivers ADC 3 5 DIG LW PWR 7106 COM
Lifecycle:
New from this manufacturer.
Delivery:
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