VOLTAGE-TO-FREQUENCY/
FREQUENCY-TO-VOLTAGE CONVERTERS
TC9400
TC9401
TC9402
ABSOLUTE MAXIMUM RATINGS*
V
DD
– V
SS
................................................................. +18V
I
IN
...........................................................................10mA
V
OUT
Max –V
OUT
Common .......................................... 23V
V
REF
– V
SS
..............................................................– 1.5V
Storage Temperature Range ................ – 65°C to +150°C
Operating Temperature Range
C Device ................................................ 0°C to +70°C
E Device ........................................... – 40°C to +85°C
Package Dissipation (T
A
≤
70°C)
8-Pin CerDIP .................................................. 800mW
8-Pin Plastic DIP ............................................. 730mW
8-Pin SOIC .....................................................470mW
Lead Temperature (Soldering, 10 sec) ................. +300°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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.
ELECTRICAL CHARACTERISTICS:
V
DD
= +5V, V
SS
= – 5V, V
GND
= 0V, V
REF
= – 5V, R
BIAS
= 100kΩ,
Full Scale = 10kHz, unless otherwise specified. T
A
= +25°C, unless temperature range is specified (– 40°C to +85°C
for E device, 0°C to +70°C for C device).
VOLTAGE-TO-FREQUENCY
Parameter
Definition
Accuracy
Linearity 10 kHz
Output Deviation From Straight
Line Between Normalized Zero
and Full-Scale Input
Output Deviation From Straight
Line Between Normalized Zero
Reading and Full-Scale Input
Variation in Gain A Due to
Temperature Change
Variation From Ideal Accuracy
Correction at Zero Adjust for Zero
Output When Input is Zero
Variation in Zero Offset Due to
Temperature Change
Full-Scale Analog Input Current to
Achieve Specified Accuracy
Overrange Current
Settling Time to 0.1% Full Scale
Logic "0" Output Voltage (Note 3)
Voltage Range Between Output
and Common
TC9401
TC9400
TC9402
Min Typ Max Min Typ Max Min Typ Max
—
0.004 0.01
—
0.01 0.05
— 0.05
0.25
Unit
% Full
Scale
% Full
Scale
Linearity 100 kHz
—
0.04
0.08
—
0.1
0.25
— 0.25
0.5
Gain Temperature
Drift (Note 1)
Gain Variance
Zero Offset (Note 2)
Zero Temperature
Drift (Note 1)
Analog Input
I
IN
Full Scale
I
IN
Overrange
Response Time
Digital Section
V
SAT
@ I
OL
= 10mA
V
OUT
Max – V
OUT
Common (Note 4)
Pulse Frequency
Output Width
—
—
—
—
±
25
±
40
±
10
–
—
—
—
—
±
25
±
40
±
10
—
±
10
±
50
±
25
±
50
±
10
±
50
±
25
±
50
—
±
50
±
100 ppm/°C
Full Scale
—
±
10
–
% of
Nominal
—
±
20
±
100
mV
—
±
50
±
100
µV/°C
—
—
—
—
—
—
10
—
2
0.2
—
3
—
50
—
0.4
18
—
—
—
—
—
—
—
10
—
2
0.2
—
3
—
50
—
0.4
18
—
—
—
—
—
—
10
—
2
0.2
—
3
—
50
—
0.4
18
—
µA
µA
Cycle
V
V
µsec
3-288
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
