TC820 TelCom Semiconductor, TC820 Datasheet - Page 3

• Manufacturer Part Number: TC820
• Description: 3-3/4 DIGIT A/D CONVERTER WITH FREQUENCY COUNTER AND LOGIC PROBE
• Manufacturer: TelCom Semiconductor

3-3/4 DIGIT A/D CONVERTER WITH
FREQUENCY AND LOGIC PROBE
ELECTRICAL CHARACTERISTICS:
Symbol
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V
Analog Input Voltage (Either Input) (Note 1) .... V
Reference Input Voltage (Either Input) ............. V
Digital Inputs ............................................... V
V
Package Power Dissipation (T
Operating Temperature Range
Storage Temperature Range ................ – 65 C to +150 C
Lead Temperature (Soldering, 10 sec) ................... 300 C
RE
NL
CMRR
VCMR
e
I
V
V
TC
TC
I
DISP
IN
S
N
COM
CTC
ZS
FS
40-Pin Plastic DIP ............................................. 1.23W
44-Pin PLCC .....................................................1.23W
44-Pin Plastic Flat Package .............................. 1.00W
"C" Devices ............................................ 0 C to +70 C
"E" Devices ....................................... – 40 C to +85 C
TELCOM SEMICONDUCTOR, INC.
............................................. V
Parameter
Zero Input Reading
Roll-Over Error
Nonlinearity (Maximum
Deviation From Best
Straight Line Fit)
Ratiometric Reading
Common-Mode Rejection
Ratio
Common-Mode Voltage
Range
Noise (P-P Value Not
Exceeded 95% of Time)
Input Leakage Current
Analog Common Voltage
Common Voltage
Temperature Coefficient
Zero Reading Drift
Scale Factor
Temperature Coefficient
Supply Current
Peak-to-Peak Backplane
Drive Voltage
DD
to GND) .....................................15V
A
70 C) (Note 2)
DD
to (DGND – 0.3V)
Test Conditions
V
Full Scale = 400 mV
V
Full-Scale = 400mV
Full-Scale = 400mV
V
V
Full-Scale = 400mV
(V
Input High, Input Low
V
Full-Scale = 400mV
V
T
0 C
– 40 C
25 k Between Common and V
(V
25 k Between Common and V
0 C
– 40 C
V
0 C
– 40 C
V
0 C
– 40 C
Ext Ref = 0 ppm/ C
V
V
V
IN
IN
IN
CM
IN
IN
A
IN
IN
IN
S
DISP
FS
SS
= 25 C
= 9V
= 0V
= 390mV
= V
= 0V
= 0V
= 0V
= 399mV
= 0V
= 1V, V
= 200 mV)
– V
DD
V
= DGND
T
T
T
T
REF
S
A
A
A
A
COM
DD
DD
to DGND
T
T
T
T
= 9V, T
, TC820
A
A
A
A
+70 C
+70 C
+70 C
+70 C
to V
to V
)
IN
+85 C
+85 C
+85 C
+85 C
= 0V
SS
SS
A
= 25 C, unless otherwise specified.
*Static-sensitive devices. Unused devices should be stored in conductive
material to protect against static discharge and static fields. 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 operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
NOTES: 1. Input voltages may exceed the supply voltages provided that
DD
DD
2. Dissipation ratings assume device is mounted with all leads
input current is limited to 100 A. Current above this value
may result in invalid display readings but will not destroy the
device if limited to 1mA.
soldered to printed circuit board.
V
SS
– 000
1999
Min
3.15
4.25
– 1
– 1
—
—
—
—
—
—
—
—
—
—
—
+ 1.5
1999/2000
Typ
100
3.3
0.2
4.7
000
50
15
20
35
50
—
0.2
0.2
1
1
1
5
1
V
+000
2000
Max
3.45
DD
1.5
5.3
+1
+1
—
10
—
—
50
—
—
—
—
5
– 1
TC820
Reading
ppm/ C
ppm/ C
Counts
Digital
Count
Digital
Units
V/ C
mA
pA
V/V
V
V
V
V
3-151
1
2
3
4
5
6
7
8