WS7106 Datasheet, PDF (1/14 Pages) Wing Shing Computer Components – 3 1/2 Digit LCD/LED Display A/D Converters

3 ¹_/2Digit LCD/LED Display A/D
Converters
WS7106 / WS7107
Features
• Guaranteed Zero Reading for 0V Input on All Scales
• True Polarity at Zero for Precise Null Detection
• True Differential Input and Reference, Direct Display
Drive- LCD WS7106, LED WS7107
• On Chip Clock and Reference
• Low Noise - Less Than 15µV_P-P
• No Additional Active Circuits Required
• Low Power Dissipation - Typically Less Than 10mW
Ordering Information
Description
The WS7106 and WS7107 are high performance, low
power, 3¹/₂ digit A/D converters. Included are seven seg-
ment decoders, display drivers, a reference, and a clock.
The WS7106 is designed to interface with a liquid crystal dis-
play (LCD) and includes a multiplexed backplane drive; the
WS 7107 will directly drive an instrument size light emitting
diode (LED) display.
The WS7106 and WS 7107 bring together a combination of
high accuracy, versatility, and true economy.True differential
inputs and reference are useful in all systems, but give the
desiger an uncommon advantage when measuring load
cells, strain gauges and other bridge type transducers.
Finally, the true economy of single power supply operation
(WS7106), enables a high performance panel meter to built
with the addition of only 10 passive compoents and a disply.
PART NO.
WS7106CPL
WS7107CPL
TEMP.
RANGE (^oC)
0 to 70
0 to70
PACKAGE
40Ld PDIP
40Ld PDIP
PKG. NO.
E40.6
E40.6
Pinouts
WS7106CPL (PDIP)
WS7107CPL (PDIP)
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
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage: http://www.wingshing.com
Tel:[phone] Fax:[phone]
E-mail: [e-mail]