HI7106_02 Datasheet, PDF (1/11 Pages) Intersil Corporation – 3 1/2 Digit, LCD/LED Display, A/D Converter

May 2002
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HI7106
3¹/₂ Digit, LCD/LED Display, A/D Converter
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
• Low Noise - Less Than 15µV_P-P
• On Chip Clock and Reference
• Low Power Dissipation - Typically Less Than 10mW
• No Additional Active Circuits Required
• Enhanced Display Stability
• Enhanced VCOM Reference Stability
Part Number Information
PART NO.
HI7106CPL
TEMP.
RANGE (^oC)
PACKAGE
0 to 70 40 Ld PDIP
HI7106C/D
0 to 70 DIE
PKG. NO.
E40.6
Description
The Intersil HI7106 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 HI7106 is
designed to interface with a liquid crystal display (LCD) and
includes a multiplexed backplane drive.
The HI7106 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/^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.
Pinout
HI7106
(PDIP)
TOP VIEW
V+ 1
D1 2
C1 3
B1 4
(1’s) A1 5
F1 6
G1 7
E1 8
D2 9
C2 10
B2 11
(10’s)
A2 12
F2 13
E2 14
D3 15
B3 16
(100’s)
F3 17
E3 18
(1000) AB4 19
(MINUS)
POL 20
40 OSC 1
39 OSC 2
38 OSC 3
37 TEST
36 REF HI
35 REF LO
34 C_REF+
33 C_REF-
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
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
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