ICL7109
Analog Electrical Specifications
V+ = +5V, V- = -5V, GND = 0V, T
A
= 25
o
C, f
CLK
= 3.58MHz,
Unless Otherwise Specified
PARAMETER
Scale Factor Temperature Coefficient
REFERENCE VOLTAGE
Ref Out Voltage, V
REF
Ref Out Temperature Coefficient
POWER SUPPLY CHARACTERISTICS
Supply Current V+ to GND, I+
Supply Current V+ to V-, I
SUPP
V
IN
= 0V, Crystal Osc 3.58MHz Test Circuit
Pins 2 - 21, 25, 26, 27, 29; Open
-
-
700
700
1500
1500
µA
µA
Referred to V+, 25kΩ Between V+ and REF OUT
25kΩ Between V+ and REF OUT (Note 4)
-2.4
-
-2.8
80
-3.2
-
V
ppm/
o
C
(Continued)
MIN
-
TYP
1
MAX
5
UNIT
ppm/
o
C
TEST CONDITIONS
V
IN
= 408.9mV = > 7770
8
Reading Ext. Ref. 0ppm/
o
C
(Note 4)
Digital Electrical Specifications
V+ = +5V, V- = -5V, GND = 0V, T
A
= 25
o
C, Unless Otherwise Specified
PARAMETER
DIGITAL OUTPUTS
Output High Voltage, V
OH
Output Low Voltage, V
OL
Output Leakage Current
Control I/O Pullup Current
Control I/O Loading
DIGITAL INPUTS
Input High Voltage, V
IH
Input Low Voltage, V
IL
Input Pull-Up Current
Input Pull-Up Current
Input Pull-Down Current
TIMING CHARACTERISTICS
MODE Input Pulse Width, t
W
(Note 4)
50
-
-
ns
Pins 18 - 21, 26, 27 Referred to GND
Pins 18 - 21, 26, 27 Referred to GND
Pins 26, 27 V
OUT
= (V+) -3V
Pins 17, 24 V
OUT
= (V+) -3V
Pin 21 V
OUT
= GND +3V
3.0
-
-
-
-
-
-
5
25
5
-
1
-
-
-
V
V
µA
µA
µA
I
OUT
= 100µA Pins 2 - 16, 18, 19, 20
I
OUT
= 1.6mA Pins 2 - 16, 18, 19, 20
Pins 3 - 16 High Impedance
Pins 18, 19, 20 V
OUT
= V+ -3V MODE Input at GND
(Note 4)
HBEN Pin 19 LBEN Pin 18 (Note 4)
3.5
-
-
-
-
4.3
±0.20
±0.01
5
−
-
±0.40
±1
-
50
V
V
µA
µA
pF
TEST CONDITIONS
MIN
TYP
MAX
UNIT
NOTES:
1. Input voltages may exceed the supply voltages provided the input current is limited to
±100µA.
2. Due to the SCR structure inherent in the process used to fabricate these devices, connecting any digital inputs or outputs to voltages
greater than V+ or less than GND may cause destructive device latchup. For this reason it is recommended that no inputs from sources
other than the same power supply be applied to the ICL7109 before its power supply is established, and that in multiple supply systems
the supply to the ICL7109 be activated first.
3. This limit refers to that of the package and will not be obtained during normal operation.
4. This parameter is not production tested, but is guaranteed by design.
5. Roll-over error for T
A
= -55
o
C to 125
o
C is
±10
counts (Max).
6. A full scale voltage of 2.048V is used because a full scale voltage of 4.096V exceeds the devices Common Mode Voltage Range.
7. For CERDIP package the Ratiometric error can be -4 (Min).
3
INTERSIL [ INTERSIL CORPORATION ]
