tc7135 Microchip Technology Inc., tc7135 Datasheet - Page 3

• Manufacturer Part Number: tc7135
• Description: 4-1/2 Digit A/d Converter
• Manufacturer: Microchip Technology Inc.

1.0
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; (T
DC CHARACTERISTICS
© 2007 Microchip Technology Inc.
Electrical Specifications: Unless otherwise indicated, T
(see Functional Block Diagram).
Analog
Display Reading with Zero Volt
Input
Zero Reading Temperature
Coefficient
Full Scale Temperature
Coefficient
Nonlinearity Error
Differential Linearity Error
Display Reading in Ratiometric
Operation
± Full Scale Symmetry Error
(Rollover Error)
Input Leakage Current
Noise
Digital
Input Low Current
Input High Current
Output Low Voltage
Output High Voltage;
Clock Frequency
Note 1:
28-Pin PDIP .......................................................... 1.14Ω
28-Pin PLCC ......................................................... 1.00Ω
44-Pin MQFP..........................................................................
64-Pin MQFP ........................................................ 1.14Ω
B
Busy, Polarity, Overrange,
Underrange, Strobe
1
2:
3:
4:
5:
6:
7:
8:
, B
ELECTRICAL SPECIFICATIONS
2
Parameters
, B
Limit input current to under 100 µA if input voltages exceed supply voltage.
Full-scale voltage = 2V
V
30°C ≤ T
External reference temperature coefficient less than 0.01 ppm/°C.
-2V ≤ V
IV
Specification related to clock frequency range over which the
Increased errors result at higher operating frequencies.
IN
4
IN
, B
= 0V
| = 1.9959
8
, D
IN
A
1 –
≤ +2V. Error of reading from best fit straight line.
≤ +70°C
D
5
A
≤ 70°C)
±FSE
TC
Sym
F
DNL
TC
V
V
NL
I
e
I
I
CLK
IN
IH
OH
IL
OL
N
FS
Z
+0.9995
-0.0000
Min.
2.4
4.9
—
—
—
—
—
—
—
—
—
—
0
A
±0.0000
+0.9999 +1.0000 Display Reading V
= +25°C, F
Typ.
0.01
0.08
4.99
200
0.5
0.5
0.5
0.2
4.4
15
10
—
1
+0.0000 Display Reading Note 2, Note 3
CLOCK
† Notice: 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.
Max.
1200
100
0.4
10
10
—
—
2
5
1
1
5
5
TC7135
= 120 kHz, V+ = +5V, V- = -5V.
correctly performs its various functions.
ppm/°C
µV/°C
Count
Count
µV
Units
kHz
LSB
pA
µA
µA
V
V
V
P-P
V
V
(Note 4, Note 5)
Note 6
Note 6
-V
Note 3
Peak-to-Peak Value not
Exceeded 95% of Time
V
V
I
I
I
Note 8
OL
OH
OH
IN
IN
IN
IN
IN
IN
= 1.6 mA
= 0V, (Note 4)
= 2V,
= V
= 0V
= +5V
= 1 mA
= 10 µA
= +V
REF,
IN,
Conditions
TC7135
(Note 2)
(Note 7)
DS21460D-page 3