2007 Microchip Technology Inc.
DS21478C-page 3
TC835
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
Positive Supply Voltage.....................................................+6V
Negative Supply Voltage ....................................................-9V
Analog Input Voltage (Pin 9 or 10) ..............V+ to V– (Note 2) Reference Input Voltage (Pin 2) ................................ V+ to V–
Clock Input Voltage ....................................................0V to V+
Operating Temperature Range .......................... 0°C to +70°C
Storage Temperature Range .........................-65°C to +150°C
Package Power Dissipation (TA ≤ 70°C)
28-Pin Plastic DIP ..................................................... 1.14
Ω
44-Pin MQFP............................................................. 1.00
Ω
64-Pin MQFP............................................................. 1.14
Ω
Stresses above those listed under "Absolute Maximum Rat-
ings" 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. Expo-
sure to Absolute Maximum Rating conditions for extended
periods may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, TA = +25°C, FCLOCK = 200 kHz, V+ = +5V, V- = -5V.
Parameter
Sym
Min
Typ
Max
Unit
Conditions
Analog
Display Reading with Zero Volt Input
-0.0000
±0.0000 +0.0000
Display
Reading
Zero Reading Temperature Coefficient
TCZ
—
0.5
2
V/°C
Full-Scale Temperature Coefficient
TCFS
—
5
ppm/°C
VIN = 2V;
Nonlinearity Error
NL
—
0.5
1
Count
Differential Linearity Error
DNL
—
0.01
—
LSB
Display Reading in Ratiometric Operation
+0.9995 +0.9998 +1.0000
Display
Reading
± Full Scale Symmetry Error (Rollover Error)
±FSE
—
0.5
1
Count
Input Leakage Current
IIN
—
1
10
pA
Noise
eN
—15
—
μV
P-P
Peak-to-Peak Value not
Exceeded 95% of Time
Digital
Input Low Current
IIL
—
10
100
μAV
IN = 0V
Input High Current
IIH
—0.08
10
μAV
IN = +5V
Output Low Voltage
VOL
—
0.2
0.4
V
IOL = 1.6 mA
Output High Voltage;
B1, B2, B4, B8, D1 –D5
Busy, Polarity, Overrange,
Underrange, Strobe
VOH
2.4
4.4
5
V
IOH = 1 mA
4.9
4.99
5
V
IOH = 10 A
Clock Frequency
fCLK
0
200
1200
kHz
Note
1:
Functional operation is not implied.
2:
Limit input current to under 100 A if input voltages exceed supply voltage.
3:
Full scale voltage = 2V.
4:
VIN = 0V.
5:
0°C
≤ T
A ≤ +70°C.
6:
External reference temperature coefficient less than 0.01ppm/°C.
7:
-2V
≤ V
IN ≤ +2V. Error of reading from best fit straight line.
8:
|VIN| = 1.9959.
9:
10: Specification related to clock frequency range over which the TC835 correctly performs its various functions. Increased
errors result at higher operating frequencies.