tc7136a Microchip Technology Inc., tc7136a Datasheet - Page 5

• Manufacturer Part Number: tc7136a
• Description: Low Power 3-1/2 Digit Analog-to-digital Converter
• Manufacturer: Microchip Technology Inc.

1.0
Absolute Maximum Ratings*
Supply Voltage (V+ to V-)....................................... 15V
Analog Input Voltage (Either Input) (Note 1)... V+ to V-
Reference Input Voltage (Either Input)............ V+ to V-
Clock Input .................................................TEST to V+
Package Power Dissipation (T
Operating Temperature Range:
Storage Temperature Range .............. -65° C to +150° C
TC7136 AND TC7136A ELECTRICAL SPECIFICATIONS

Symbol
Input
NL
E
e
I
CMRR
TC
Note 1: Input voltages may exceed supply voltages when input current is limited to 100µA.
Electrical Characteristics: V
L
N
R
2002 Microchip Technology Inc.
SF
Plastic DIP ................................................... 1.23W
Plastic Quad Flat Package .......................... 1.00W
PLCC ........................................................... 1.23W
C Devices.......................................... 0°C to +70°C
I Devices ........................................ -25°C to +85°C
2: Dissipation rating assumes device is mounted with all leads soldered to PC board.
3: Refer to "Differential Input" discussion.
4: Backplane drive is in phase with segment drive for "OFF" segment and 180° out-of-phase for "ON" segment. Frequency
5: See "Typical Application".
6: A 48kHz oscillator increases current by 20µA (typical). Common current not included.
ELECTRICAL
CHARACTERISTICS
Zero Input Reading
Zero Reading Drift
Ratiometric Reading
Non-Linearity Error
Rollover Error
Noise
Input Leakage Current
Common Mode Rejection Ratio
Scale Factor Temperature
Coefficient
is 20 times conversion rate. Average DC component is less than 50mV.
Parameter
S
= 9V, f
A
≤ 70° C) (Note 2):
CLK
= 16kHz, and T
-000.0
Min
999
—
—
—
—
—
—
-1
999/1000
±000.0
A
Typ
0.2
15
50
1
-1
1
1
= +25°C, unless otherwise noted.
+000.0
1000
Max
±0.2
±0.2
*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.
—
10
—
1
5
Reading
Reading
1 Count V
ppm/°C
Digital
Digital
Count
µV/° C
µV
µV/V
Unit
pA
TC7136/TC7136A
P-P
V
V
V
Full Scale = 20mV or 2V Max.
Deviation from best Straight Line
V
V
V
V
Ext. Ref. Temp. Coeff. = 0ppm/°C
IN
IN
IN
IN
IN
IN
CM
IN
- = V
= 0V, Full Scale = 200mV
= 0V, 0°C ≤ T
= V
= 0V, Full Scale = 200mV
= 0V
= 199mV, 0°C ≤ T
= ±1V, V
REF
IN
+ ≈ 200mV
, V
Test Conditions
REF
IN
= 0V, Full Scale = 200mV
A
= 100mV
≤ +70°C
A
≤ +70°C
DS21461B-page 5