2
3-1/2 DIGIT ANALOG-TO-DIGITAL
CONVERTERS WITH HOLD
TC7116
TC7116A
TC7117
TC7117A
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage
TC7116/TC7116A: V+ to V– ................................. 15V
TC7117/TC7117A: V+ to GND ............................. +6V
V– to GND ............................ – 9V
Analog Input Voltage (Either Input) (Note 1) ........ V+ to V–
Reference Input Voltage (Either Input) ................. V+ to V–
Clock Input
TC7116/TC7116A ..................................... TEST to V+
TC7117/TC7117A ...................................... GND to V+
Package Power Dissipation, TA ≤ 70°C (Note 2)
CDIP .................................................................2.29W
PDIP .................................................................1.23W
Plastic Chip Carrier (PLCC) .............................. 1.23W
Plastic Quad Flat Package (PQFP) .................. 1.00W
Operating Temperature
“C” Device .............................................. 0
°C to +70°C
“I” Device .......................................... – 25
°C to +85°C
Storage Temperature ............................ – 65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above 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
Test Conditions
Min
Typ
Max
Unit
Zero Input Reading
VIN = 0V
—
±0
—
Digital
Full Scale = 200mV
Reading
Ratiometric Reading
VIN = VREF
999
999/1000
1000
Digital
VREF = 100mV
Reading
Roll-Over Error (Difference in
–VIN = +VIN 200mV or ≈ 2V
– 1
±0.2
+1
Counts
Reading for Equal Positive and
Negative Readings Near Full Scale)
Linearity (Maximum Deviation From
Full Scale = 200mV or 2V
– 1
±0.2
+1
Counts
Best Straight Line Fit)
Common-Mode Rejection Ratio (Note 4)
VCM = ±1V, VIN = 0V
—
50
—
V/V
Full Scale = 200mV
Noise (Peak-to-Peak Value Not
VIN = 0V
—
15
—
V
Exceeded 95% of Time)
Full Scale = 200mV
Leakage Current at Input
VIN = 0V
—
1
10
pA
Zero Reading Drift
VIN = 0V
“C” Device: 0
°C to +70°C
—
0.2
1
V/°C
“I” Device: –25
°C to +85°C—
1
2
v/°C
Scale Factor Temperature Coefficient
VIN = 199 mV
“C” Device: 0
°C to +70°C
—
1
5
ppm/
°C
(Ext Ref = 0 ppm/
°C)
“I” Device: –25
°C to +85°C
—
20
ppm/
°C
Input Resistance, Pin 1
Note 6
30
70
—
k
VIL, Pin 1
TC7116/A Only
—
Test +1.5
V
VIL, Pin 1
TC7117/A Only
—
GND +1.5
V
VIH, Pin 1
Both
V + – 1.5
—
V
Supply Current (Does Not Include
VIN = 0V
—
0.8
1.8
mA
LED Current for 7117/A)
Analog Common Voltage
25k
Between Common
2.4
3.05
3.35
V
(With Respect to Positive Supply)
and Positive Supply
Temperature Coefficient of Analog Common
"C" Device: 0
°C to +70°C
(With Respect to Positive Supply)
TC7116A/TC7117A
—
20
50
ppm/
°C
TC7116/TC7117
—
80
—
ppm/
°C