TC7129 Datasheet, PDF (6/15 Pages) TelCom Semiconductor, Inc – 4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER WITH ON-CHIP LCD DRIVERS

TC7129
4-1/2 DIGIT ANALOG-TO-DIGITAL
CONVERTER WITH ON-CHIP LCD DRIVERS
LOW BATTERY
CONTINUITY
V+
5 pF
CO1
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
DISPLAY DRIVE OUTPUTS
120
TC7129
kHz
CRYSTAL
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
330 kΩ
+
9V
CINT
0.1
µF
CREF
1 µf
150 kΩ
RINT
10 kΩ
RBIAS
+
0.1
µF
CIF
RREF DREF
20
kΩ
TC04
RIF
100 kΩ
–
+
VIN
RO
10 pF
CO2
CRF
V+
0.1 µF
Figure 1. Standard Circuit
3-236
TELCOM SEMICONDUCTOR, INC.