TC7116 Microchip, TC7116 Datasheet - Page 4

• Manufacturer Part Number: TC7116
• Description: 3-1/2 Digit Analog-to-Digital Converters with Hold
• Manufacturer: Microchip

TC7116/A/TC7117/A
1.0
Absolute Maximum Ratings*
Supply Voltage:
Analog Input Voltage (Either Input) (Note 1) ... V+ to V-
Reference Input Voltage (Either Input) ............ V+ to V-
Clock Input:
Package Power Dissipation; T
Operating Temperature:
Storage Temperature.......................... -65°C to +150°C
TC7116/A AND TC7117/A ELECTRICAL SPECIFICATIONS
DS21457B-page 4
Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7116/A and TC7117/A at T
f
Z
R/O
CMRR
e
I
Note 1: Input voltages may exceed the supply voltages provided the input current is limited to ±100µA.
Symbol
CLOCK
L
IR
N
TC7116/TC7116A (V+ to V-) ........................... 15V
TC7117/TC7117A (V+ to GND) .......................+6V
V- to GND.........................................................-9V
TC7116/TC7116A............................... TEST to V+
TC7117/TC7117A.................................GND to V+
40-Pin CDIP ................................................2.29W
40-Pin PDIP ................................................1.23W
44-Pin PLCC ...............................................1.23W
44-Pin PQFP ...............................................1.00W
C (Commercial) Device ................... 0°C to +70°C
I (Commercial) Device.................... 0°C to +70°C
2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
3: Refer to “Differential Input” discussion.
4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is
5: The TC7116/TC7116A logic inputs have an internal pull-down resistor connected from HLDR, Pin 1 to TEST, Pin 37. The
= 48kHz. Parts are tested in the circuit of the Typical Operating Circuit.
ELECTRICAL
CHARACTERISTICS
Zero Input Reading
Ratiometric Reading
Rollover Error (Difference in Reading for
Equal Positive and Negative
Readings Near Full Scale)
Linearity (Maximum Deviation from Best
Straight Line Fit)
Common Mode Rejection Ratio
(Note 3)
Noise (Peak to Peak 95% of Time)
Leakage Current at Input
Zero Reading Drift
20 times conversion rate. Average DC component is less than 50mV.
TC7117/TC7117A logic inputs have an internal pull-down resistor connected from HLDR, Pin 1 to GND, Pin 21.
Parameter
A
≤ 70°C (Note 2)
Min
999
—
—
—
—
—
—
-1
-1
999/1000
*Stresses above 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 above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
±0.2
±0.2
Typ
0.2
1.0
±0
50
15
1
1000
Max
+1
+1
—
10
—
—
1
2
Reading
Reading
Counts
Counts
Digital
Digital
µV/°C
µV/°C
µV/V
Unit
µV
pA
©
2002 Microchip Technology Inc.
V
Full Scale = 200mV
V
V
V
or ≈ 2V
Full Scale = 200mV or 2V
V
Full Scale = 200mV
V
Full Scale = 200mV
V
V
“C” Device = 0°C to +70°C
“I” Device = -25°C to +85°C
IN
IN
REF
IN
CM
IN
IN
IN
- = + V
= 0V
= V
= 0V
= 0V
= 0V
= ±1V, V
Test Conditions
= 100mV
REF
IN
A
+ ≅ 200mV
= 25°C,
IN
= 0V