ICL7129_00 Datasheet, PDF (3/10 Pages) Intersil Corporation – 4½ Digit LCD, Single-Chip A/D Converter

ICL7129
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Reference Voltage (REF HI or REF LO) . . . . . . . . . . . . . . . V+ to V-
Input Voltage (Note 1), IN HI or IN LO . . . . . . . . . . . . . . . . . V+ to V-
V_DISP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DGND -0.3V to V+
Digital Input Pins
1, 2, 19, 20, 21, 22, 27, 37, 38, 39, 40 . . . . . . . . . . . . . DGND to V+
Thermal Information
Thermal Resistance (Typical, Note 2)
θ_JA (^oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
MQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80
Maximum Junction Temperature. . . . . . . . . . . . . . . . . . . . . .150^oC
Maximum Storage Temperature Range . . . . . . . . . . -65^oC to 150^oC
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . . 300^oC
(MQFP - Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. Input voltages may exceed the supply voltages provided that input current is limited to 1400mA. Currents above this value may result in
valid display readings but will not destroy the device if limited to ±1mA.
2. θ_JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications V- to V+ = 9V, V_REF = 1.00V, T_A = 25^oC, f_CLK = 120kHz, Unless Otherwise Specified
PARAMETER
Zero Input Reading
Zero Reading Drift
Ratiometric Reading
Range Change Accuracy
Rollover Error
Linearity Error
Input Common-Mode Rejection Ratio
Input Common-Mode Voltage Range
Noise (Peak-To-Peak Value not Exceeded 95% of
Time)
Input Leakage Current
Scale Factor Tempco
COMMON Voltage
COMMON Sink Current
COMMON Source Current
DGND VoItage
DGND Sink Current
Supply Voltage Range
Supply Current Excluding COMMON Current
Clock Frequency
V_DISP Resistance
Low Battery Flag Activation Voltage
CONTINUITY Comparator Threshold Voltages
Pull-Down Current
“Weak Output” Current Sink/Source
Pin 22 Source Current
Pin 22 Sink Current
TEST CONDITIONS
V_IN = 0V, 200mV Scale
V_IN = 0V, 0^oC To 70^oC
V_IN = V_REF = 1000mV, RANGE = 2V
V_IN = 0.10000V on Low,
Range ≈ V_IN = 1.0000V on High Range
-V_IN = +V_IN = 199mV
200mV Scale
V_CM = 1V,V_IN = 0V, 200mV Scale
V_IN = 0V, 200mV Scale
MIN
-0000
-
9996
0.9999
-
-
-
-
V_IN = 0V 200mV Scale
-
TYP
0000
±0.5
9999
1.0000
1.5
1.0
110
(V-) +1.5
(V+) -1.0
14
MAX
+0000
-
10000
1.0001
3.0
-
-
-
-
UNITS
Counts
µV/^oC
Counts
Ratio
Counts
Counts
dB
V
µV
V_IN = 0V, Pin 32, 33
EV^Ix^Nte=rn1a9l ^9Vm_R^V_EF^{0=oC0pTpom7/0oo}CC
V+ to Pin 28
∆Common = + 0.1V
∆Common = -0.1V
V+ to Pin 36, V+ to V- = 9V
∆DGND = +0.5V
V+ to V- (Note 3)
V+ to V- = 9V
(Note 3)
V_DISP to V+
V+ to V-
V_OUT Pin 27 = HI
V_OUT Pin 27 = LO
Pins 37, 38, 39
Pins 20, 21 Sink/Source
Pin 27 Sink/Source
-
1
10
pA
-
2
7
ppm/^oC
2.8
3.2
3.5
V
-
0.6
-
mA
-
10
-
µA
4.5
5.3
5.8
V
-
1.2
-
mA
6
9
12
V
-
1.0
1.5
mA
-
120
360
kHz
-
50
-
kΩ
6.3
7.2
7.7
V
100
200
-
mV
-
200
400
mV
-
2
10
µA
-
3/3
-
µA
-
3/9
-
µA
-
40
-
µA
-
3
-
µA
3