Operating Temperature Range ............................... 0ºC to +70ºC
Storage Temperature Range .............................-65ºC to +160ºC
Lead Temperature (soldering, 60s) ................................. +300ºC
Note 1:
Input voltage may exceed supply voltages, provided the input current is limited to 100µA.
Note 2:
Dissipation rating assumes device is mounted with all leads soldered to the PCB.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(Note 3)
PARAMETER
Zero Input Reading
Ratiometric Reading
Rollover Error (Difference in Reading for Equal
Positive and Negative Reading Near Full
Scale)
Linearity (Max. Deviation from Best Straight
Line Fit)
Common-Mode Rejection Ratio (Note 4)
Noise (Pk-Pk Value Not Exceeded 95% of the
Time)
Leakage Current at Input
Zero Reading Drift
Scale Factor Temperature Coefficient
V+ Supply Current (Does Not Include LED
Current for ICL7117)
V- Supply Current for ICL7117 Only
Analog Common Voltage (With Respect to
Positive Supply)
Temperature Coefficient of Analog Common
(With Respect to Pos. Supply)
Input Resistance, Pin 1 (Note 6)
V
IL
, Pin 1 (ICL7116 Only)
25Ω Between Common and Positive Supply
25Ω Between Common and Positive Supply
30
2.4
CONDITIONS
V
IN
= 0V
Full Scale = 200.00mV
V
IN
= V
REF
= 100mV
-V
IN
= +V
IN
= 200mV
Full Scale = 200mV
or Full Scale = 2.00mV
V
CM
= 1V, V
IN
= 0V
Full Scale = 200.00mV
V
IN
= 0V
Full Scale = 200.00mV
V
IN
= 0V
V
IN
= 0V, 0°C < T
A
< 70°C
V
IN
= 199.0mV
0°C < T
A
< 70°C
(Ext. Ref. 0ppm/°C)
V
IN
= 0V
MIN
-000.0
999
TYP
±000.0
999/
1000
±0.2
MAX
+000.0
1000
UNITS
Digital
Reading
Digital
Reading
Counts
-1
+1
-1
50
±0.2
+1
Counts
µV/V
15
1
0.2
1
10
1
5
µV
pA
µV/°C
ppm/°C
0.8
0.6
2.8
80
70
1.8
1.8
3.2
mA
mA
V
ppm/°C
kΩ
TEST – 1.5
V
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│
2
ICL7116/ICL7117
3½ Digit ADCs with Display Hold
Electrical Characteristics (continued)
(Note 3)
PARAMETER
V
IL
, Pin 1 (ICL7117 Only)
V
IH
, Pin 1 (Both)
ICL7116 Only (Note 5)
Pk-Pk Segment Drive Voltage,
Pk-Pk Backplane Drive Voltage
ICL7117 Only (Except Pin 19) Segment
Sinking Current
(Pin 19 Only)
V
+
to V
-
= 9V
V+ = 5.0V
Segment Voltage = 3V
V+ - 1.5
4
4
5
10
5
5
8.0
16
6
6
CONDITIONS
MIN
TYP
GND +1.5
MAX
V
V
V
mA
Note 3:
Unless otherwise noted, specifications apply to both the ICL7116 and ICL7117 at T
A
= +25°C, f
CLOCK
= 48kHz. ICL7116 is
tested in the circuit of
Figure 1.
ICL7117 is tested in the circuit of
Figure 2.
Note 4:
Refer to “Differential input” discussion (see Maxim’s ICL7106/ICL7107 data sheet).
Note 5:
Backplane drive is in phase with segment drive for ‘off’ segment, 180º out of phase for on segment. Frequency is 20 times
the conversion rate. Average DC component is less than 50mV.
Note 6:
The ICL7116 logic input has an internal pulldown resistor connected from HLDR, pin 1, to TEST, pin 37. The ICL7117 logic
input has an internal pulldown resistor connected from HLDR. Pin 1, to GROUND, pin 21.
Maxim Advantages
●
●
●
●
Guaranteed Overload Recovery Time
Significantly Improved ESD Protection (Note 8)
Low Noise
Key Parameters Guaranteed Over Temperature
●
Negligible Hysteresis
●
Maxim Quality and Reliability
●
Increased Maximum Rating for Input Current (Note 9)
Absolute Maximum Ratings
This device conforms to the Absolute Maximum Ratings on adjacent page.
Electrical Characteristics
PARAMETER
(Specifications below satisfy or exceed all ‘tested’ parameters on adjacent page V+ = 9V, T
A
= +25ºC, f
CLOCK
= 48kHz; test circuit =
Figure 1
(ICL7116),
Figure 2
(ICL7117), unless otherwise noted.)
CONDITIONS
V
IN
= 0V
Full Scale = 200.00mV
T
A
= +25°C (Note 7)
0°C ≤ T
A
≤ +70°C (Note 11)
Ratiometric Reading
V
IN
= V
REF
= 100mV
T
A
= +25°C (Note 7)
0°C ≤ T
A
≤ +70°C (Note 11)
Rollover Error (Difference in Reading for
Equal Positive and Negative Reading Near
Full Scale)
Linearity (Max. Deviation from Best Straight
Line Fit)
-V
IN
= +V
IN
= 200mV
T
A
= +25°C (Note 7)
0°C ≤ T
A
≤ +70°C (Note 11)
Full Scale = 200mV
or Full Scale = 2.00mV
-1
MIN
-000.0
-000.0
999
999
-1
TYP
±000.0
±000.0
999/
1000
999/
1000
±0.2
±0.2
±0.2
+1
Counts
MAX
+000.0
+000.0
1000
1001
+1
Digital
Reading
UNITS
Digital
Reading
Zero Input Reading
Counts
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│
3
ICL7116/ICL7117
3½ Digit ADCs with Display Hold
Electrical Characteristics (continued)
Specifications below satisfy or exceed all ‘tested’ parameters on adjacent page V
+
= 9V, T
A
= +25ºC, f
CLOCK
= 48kHz; test circuit =
Figure 1
(ICL7116),
Figure 2
(ICL7117), unless otherwise noted.)
PARAMETER
Common-Mode Rejection Ratio (Note 4)
Noise (Pk-Pk Value Not Exceeded 95%
of the Time)
Input Leakage Current
Zero Reading Drift
Scale Factor Temperature Coefficient
V+ Supply Current (Does Not Include LED
Current for ICL7117)
V- Supply Current for ICL7117 Only
Analog Common Voltage (With Respect to
Positive Supply)
Temperature Coefficient of Analog Common
(With Respect to Pos. Supply)
Input Resistance, Pin 1 (Note 6)
V
IL
, Pin 1 (ICL7116 Only)
V
IL
, Pin 1 (ICL7117 Only)
V
IH
, Pin 1 (Both)
ICL7116 Only (Note 5)
Pk-Pk Segment Drive Voltage,
Pk-Pk Backplane Drive Voltage
ICL7117 Only (Except Pin 19) Segment
Sinking Current
(Pin 19 Only)
ICL7116 Only – Test Pin Voltage
Overload Recovery Time
(Note 10)
With respect to V+
V
IN
changing from ±10V to 0V
V+ to V- = 9V
V+ = 5.0V
Segment Voltage = 3V
V+ - 1.5
4
5
6
25Ω Between Common and Positive Supply
25Ω Between Common and Positive Supply
30
2.4
CONDITIONS
V
CM
= ±1V, V
IN
= 0V
Full Scale = 200.00mV
V
IN
= 0V
Full Scale = 200.00mV
V
IN
= 0V, T
A
= +25°C (Note 7)
0°C ≤ T
A
≤ +70°C
V
IN
= 0V, 0°C ≤ T
A
≤ +70°C
V
IN
= 199.0mV
0°C ≤ T
A
≤ +70°C
(Ext. Ref. 0ppm/°C)
V
IN
= 0V, T
A
= +25°C
0°C ≤ T
A
≤ +70°C
0.6
2.8
80
70
TEST + 1.5
GND + 1.5
MIN
TYP
50
15
1
20
0.2
1
0.8
10
200
1
5
1.8
2
1.8
3.2
MAX
UNITS
µV/V
µV
pA
µV/°C
ppm/°C
mA
mA
V
ppm/°C
kΩ
V
V
V
V
5
10
4
8.0
16
5
0
6
1
mA
V
Measur-
ement
Cycles
Note 7:
Test condition is V
IN
applied between pins IN HI and IN LO i.e., 1MΩ resistor in
Figure 1
and
Figure 2.
Note 8:
All pins are designed to withstand electrostatic discharge (ESD) levels in excess of 2000V (Test circuit per MIL. Std. 883C.
Method 3015 2).
Note 9:
Input voltages may exceed the supply voltage provided the input current is limited to ±1mA (This revises Note 1 on the
adjacent page).
Note 10:
Number of measurement cycles for display to give accurate reading.
Note 11:
1MΩ resistor is removed in
Figure 1
and
Figure 2.
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4
ICL7116/ICL7117
3½ Digit ADCs with Display Hold
Detailed Description
The Maxim ICL7116 and ICL7117 3½ digit ADCs are
similar to the Maxim ICL7106 and ICL7107, except for the
addition of a Hold pin. For a detailed product description,
package dimensions, and applications information (other
than the operation of the Hold pin described below) refer
to Maxim’s ICL7106 and ICL7107 data sheet
Hold Input
input. When the Hold input is connected to V+, however,
the display latch pulse is inhibited, and the the display
latches are not updated. The Hold input has a 70kΩ pull-
down resistor to Test (ICL7116) or Ground (ICL7117) and
the Hold input will be pulled low if it is left open. When
Hold is low the ICL7116/ICL7117 updates the display
at the end of each conversion. The Hold input is CMOS
compatible and can also be driven by a switch connected
to V
+
(Figure
1
and
Figure 2)
or by a PNP transistor.
Unlike the ICL7106 and the ICL7107, the ICL7116 and
ICL7117 do not have a Reference Low input. Apply the
reference voltage between Reference High (REF HI) and
Common.
The Hold input is a digital input with a logic threshold
approximately midway between V+ and Test (ICL7116)
or V+ and Ground (ICL7117). The ICL7116/ICL7117 con-
tinuously performs conversions, independent of the Hold
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