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PDF ( 数据手册 , 数据表 ) L7107CPL

零件编号 L7107CPL
描述 ICL7107CPL
制造商 Intersil Corporation
LOGO Intersil Corporation LOGO 


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L7107CPL 数据手册, 描述, 功能
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®
Data Sheet
ICL7106, ICL7107, ICL7107S
September 15, 2005
FN3082.7
31/2 Digit, LCD/LED Display, A/D
Converters
The Intersil 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. It features auto-
zero to less than 10µV, zero drift of less than 1µV/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 (ICL7106), enables a high performance
panel meter to be built with the addition of only 10 passive
components and a display.
Features
• 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 ICL7106, LED lCL7107
• Low Noise - Less Than 15µVP-P
• On Chip Clock and Reference
• Low Power Dissipation - Typically Less Than 10mW
• No Additional Active Circuits Required
• Enhanced Display Stability
• Pb-Free Plus Anneal Available (RoHS Compliant)
Ordering Information
PART NO.
PART MARKING
TEMP. RANGE
(°C)
PACKAGE
PKG. DWG. #
ICL7106CPL
ICL7106CPL
0 to 70
40 Ld PDIP
E40.6
ICL7106CPLZ (Note 2)
ICL7106CPLZ
0 to 70
40 Ld PDIP(Pb-free) (Note 3)
E40.6
ICL7106CM44
ICL7106CM44
0 to 70
44 Ld MQFP
Q44.10x10
ICL7106CM44Z (Note 2)
ICL7106CM44Z
0 to 70
44 Ld MQFP (Pb-free)
Q44.10x10
ICL7106CM44ZT (Note 2)
ICL7106CM44Z
0 to 70
44 Ld MQFP Tape and Reel (Pb-free) Q44.10x10
ICL7107CPL
ICL7107CPL
0 to 70
40 Ld PDIP
E40.6
ICL7107CPLZ (Note 2)
ICL7107CPLZ
0 to 70
40 Ld PDIP(Pb-free) (Note 3)
E40.6
ICL7107RCPL
ICL7107RCPL
0 to 70
40 Ld PDIP (Note 1)
E40.6
ICL7107RCPLZ (Note 2)
ICL7107RCPLZ
0 to 70
40 Ld PDIP (Pb-free) (Notes 1, 3) E40.6
ICL7107SCPL
ICL7107SCPL
0 to 70
40 Ld PDIP (Notes 1, 3)
E40.6
ICL7107SCPLZ (Note 2)
ICL7107SCPLZ
0 to 70
40 Ld PDIP (Pb-free) (Notes 1, 3) E40.6
ICL7107CM44
ICL7107CM44
0 to 70
44 Ld MQFP
Q44.10x10
ICL7107CM44T
ICL7107CM44
0 to 70
44 Ld MQFP Tape and Reel
Q44.10x10
ICL7107CM44Z (Note 2)
ICL7107CM44Z
0 to 70
44 Ld MQFP (Pb-free)
Q44.10x10
ICL7107CM44ZT (Note 2)
ICL7107CM44Z
0 to 70
44 Ld MQFP Tape and Reel (Pb-free) Q44.10x10
NOTES:
1. “R” indicates device with reversed leads for mounting to PC board underside. “S” indicates enhanced stability.
2. 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.
3. Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications.
1
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.







L7107CPL pdf, 数据表
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ICL7106, ICL7107, ICL7107S
V+
BP
V+
ICL7106
DECIMAL
POINT
SELECT
TO LCD
DECIMAL
POINTS
TEST
CD4030
GND
FIGURE 6. EXCLUSIVE ‘OR’ GATE FOR DECIMAL POINT DRIVE
Digital Section
Figures 7 and 8 show the digital section for the ICL7106 and
ICL7107, respectively. In the ICL7106, an internal digital
ground is generated from a 6V Zener diode and a large
P-Channel source follower. This supply is made stiff to
absorb the relative large capacitive currents when the back
plane (BP) voltage is switched. The BP frequency is the
clock frequency divided by 800. For three readings/sec., this
is a 60Hz square wave with a nominal amplitude of 5V. The
segments are driven at the same frequency and amplitude
and are in phase with BP when OFF, but out of phase when
ON. In all cases negligible DC voltage exists across the
segments.
Figure 8 is the Digital Section of the ICL7107. It is identical to
the ICL7106 except that the regulated supply and back plane
drive have been eliminated and the segment drive has been
increased from 2mA to 8mA, typical for instrument size
common anode LED displays. Since the 1000 output (pin 19)
must sink current from two LED segments, it has twice the
drive capability or 16mA.
In both devices, the polarity indication is “on” for negative
analog inputs. If IN LO and IN HI are reversed, this indication
can be reversed also, if desired.
a aa
a
fb
f bf b
gc
g
g
b ec ec ec
d dd
BACKPLANE
21
LCD PHASE DRIVER
TYPICAL SEGMENT OUTPUT
V+
0.5mA
2mA
SEGMENT
OUTPUT
INTERNAL DIGITAL GROUND
1000’s
COUNTER
TO SWITCH DRIVERS
FROM COMPARATOR OUTPUT
CLOCK
THREE INVERTERS
ONE INVERTER SHOWN FOR CLARITY
40 39
7
SEGMENT
DECODE
7
SEGMENT
DECODE
7
SEGMENT
DECODE
LATCH
100’s
10’s
1’s
COUNTER COUNTER COUNTER
÷4 LOGIC CONTROL
INTERNAL
DIGITAL
GROUND
38
VTH = 1V
÷200
1
V+
6.2V
500
TEST
37
26
V-
OSC 1
OSC 2
OSC 3
FIGURE 7. ICL7106 DIGITAL SECTION
8 FN3082.7







L7107CPL equivalent, schematic
www.DataSheet4U.com
ICL7106, ICL7107, ICL7107S
Metric Plastic Quad Flatpack Packages (MQFP)
D
D1
-D-
-A-
E E1
-B-
e
PIN 1
-H-
0.40
0.016 MIN
0o MIN
0o-7o
L
SEATING
A PLANE
12o-16o
A2 A1
0.076
0.003
-C-
0.20
0.008
M
C
A-B S
DS
b
b1
12o-16o
0.13/0.17
0.005/0.007
BASE METAL
WITH PLATING
0.13/0.23
0.005/0.009
Q44.10x10 (JEDEC MS-022AB ISSUE B)
44 LEAD METRIC PLASTIC QUAD FLATPACK PACKAGE
INCHES
MILLIMETERS
SYMBOL MIN MAX MIN MAX NOTES
A
-
0.096
-
2.45
-
A1
0.004 0.010 0.10
0.25
-
A2
0.077 0.083 1.95
2.10
-
b
0.012 0.018 0.30
0.45
6
b1
0.012 0.016 0.30
0.40
-
D 0.515 0.524 13.08 13.32
3
D1 0.389 0.399 9.88 10.12 4, 5
E 0.516 0.523 13.10 13.30
3
E1 0.390 0.398 9.90 10.10 4, 5
L
0.029 0.040 0.73
1.03
-
N 44
44 7
e 0.032 BSC
0.80 BSC
-
NOTES:
Rev. 2 4/99
1. Controlling dimension: MILLIMETER. Converted inch
dimensions are not necessarily exact.
2. All dimensions and tolerances per ANSI Y14.5M-1982.
3. Dimensions D and E to be determined at seating plane -C- .
4. Dimensions D1 and E1 to be determined at datum plane
-H- .
5. Dimensions D1 and E1 do not include mold protrusion.
Allowable protrusion is 0.25mm (0.010 inch) per side.
6. Dimension b does not include dambar protrusion. Allowable
dambar protrusion shall be 0.08mm (0.003 inch) total.
7. “N” is the number of terminal positions.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
16 FN3082.7










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