CYRTK ES5106Q, ES5106E Datasheet
ES5106
3 1/2 DIGIT A/D CONVERTER W/LCD
02/11/29
1
１．
GENERAL DESCRIPTION
The ES 5106 is a low power monolithic CMOS 3 1/2 digit LCD
display A/D converter. The single chip ES 5106 provides all necessary
active devices which contains the internal clock, voltage reference, seven-
segment decoders, LCD display drivers and a back plane driver. The
improved internal zener reference voltage circuit gives the analog
common a small temperature coefficient of 60 ppm/℃ typically.
The high accuracy characteristics of the ES5106 perform very low
linearity error and rollover error. The high input impedance (>10
12
Ω
) and
low input leakage current (1pA typical) give the ES5106 a good
application in the field of high impedance circuit measurement. The
differential input and reference are suitable for measuring bridge
transducer or ohms by using ratiometric method.
The dual slope conversion technique makes the ES5106 a good
normal and common mode rejection ratio. With a suitable oscillator
frequency, the ES5106 has a high rejection of 50HZ, 60HZ and 400HZ
line frequency noise.
With single power supply, a few passive components and a LCD
display, ES5106 can be built as a high performance panel meter. Existing
TSC7106 or ICL7106 based systems may be upgraded without changing
external, passive component values.
ES5106
3 1/2 DIGIT A/D CONVERTER W/LCD
02/11/29
2
２．
FEAUTRES
Guaranteed zero reading with zero input
Low input leakage current (1pA typical)
Internal Reference with low temperature drift (60ppm/℃ typial)
Low noise (15μVp-p typical)
Direct LCD display driver-no external components required
Differential input and voltage reference
Precision null detection with true polarity at zero
Internal clock circuit
No additional active circuits required
３．
APPLICATIONS
Digital panel meters
Digital multimeters
Thermometers
Capacitance meters
pH meters
Photometers
ES5106
3 1/2 DIGIT A/D CONVERTER W/LCD
02/11/29
3
E
T
ES5106
3 1/2 DIGIT A/D CONVERTER W/LCD
02/11/29
4
４．
PIN ASIGNMENT
44-pin QFP package
N
C
NC
TEST
OS3
OS2
OS1
V+
D1
C1
B1
F1G1E
1
D2C
2
B2A2F
2
E
2
D
3
B3
F3
E3
AB4
POL
BP
G3
A
1
NC
NC
A3
C3
G2
V
-
I
N
T
B
U
F
F
A
.
Z
I
N
L
O
I
N
M
I
C
O
M
M
O
N
C
+
R
E
F
C
-
R
E
F
R
E
F
L
O
R
E
F
H
I
E
S
5
1
0
6
Q
ES5106
3 1/2 DIGIT A/D CONVERTER W/LCD
02/11/29
5
PIN ASSIGNMENT
40-pin DIP package
ES5106
3 1/2 DIGIT A/D CONVERTER W/LCD
02/11/29
6
５．
Pin Description
Pin No Symbol Description
1 V+ Positive supply voltage. Connecting to battery positive terminal.
2 D1 LCD segment line.
3 C1 LCD segment line.
4 B1 LCD segment line.
5 A1 LCD segment line.
6 F1 LCD segment line.
7 G1 LCD segment line.
8 E1 LCD segment line.
9 D2 LCD segment line.
10 C2 LCD segment line.
11 B2 LCD segment line.
12 A2 LCD segment line.
13 F2 LCD segment line.
14 E2 LCD segment line.
15 D3 LCD segment line.
16 B3 LCD segment line.
17 F3 LCD segment line.
18 E3 LCD segment line.
19 AB4 LCD segment line.
20 POL LCD segment line.
21 BP LCD Backplane.
22 G3 LCD segment line.
23 A3 LCD segment line.
24 C3 LCD segment line.
25 G2 LCD segment line.
26 V- Negative supply voltage. Connecting to battery negative terminal.
27 INT Integration cycle output.
28 BUFF Integration resistor connection for buffer output.
29 A.Z Auto-zero capacitor connection.
30 IN LO Low analog input signal connection.
31 IN MI High analog input signal connection.
32 COMMON Set the common-mode voltage for the system
33 C+REF Positive capacitor connection for on-chip DC-DC converter.
34 C-REF Negative capacitor connection for on-chip DC-DC converter.
35 REF LO Low differential reference input connection.
36 REF HI High differential reference input connection.
37 TEST Pull high to V+ all LCD segments will be activated.
38 OS3 Crystal oscillator connection.
39 OS2 Crystal oscillator connection.
40 OS1 Crystal oscillator connection.
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