VOLTAGE-TO-FREQUENCY/
FREQUENCY-TO-VOLTAGE CONVERTERS
TC9400
TC9401
TC9402
ELECTRICAL CHARACTERISTICS: (Cont.)
V
DD
= +5V, V
SS
= – 5V, V
GND
= 0, 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.
FREQUENCY-TO-VOLTAGE
Parameter
Definition
Supply Current
I
DD
Quiescent
(Note 5)
I
SS
Quiescent
(Note 5)
V
DD
Supply
V
SS
Supply
Reference Voltage
V
REF
–V
SS
Accuracy
Nonlinearity (Note 10)
Current Required From Positive
Supply During Operation
Current Required From Negative
Supply During Operation
Operating Range of Positive Supply
Operating Range of Negative Supply
Range of Voltage Reference Input
Deviation From Ideal Transfer
Function as a Percentage
Full-Scale Voltage
Frequency Range for Specified
Nonlinearity
Voltage Required to Turn
Threshold Detector On
Voltage Required to Turn
Threshold Detector Off
Time Between Threshold
Crossings
Time Between Threshold
Crossings
1
2
3
4
5
6
7
TC9401
TC9400
TC9402
Min Typ Max Min Typ Max Min Typ Max
Unit
—
—
4
–4
– 2.5
—
1.5
6
—
1.5
6
—
3
–3
—
—
—
10
– 10
7.5
– 7.5
—
0.25
mA
mA
V
V
V
% Full
Scale
Hz
– 1.5 – 6 — – 1.5 – 6
—
7.5
4
— 7.5
— – 7.5 – 4 — – 7.5
—
0.01
—
0.02
– 2.5
—
—
—
4
–4
– 2.5
0.02 0.05
— 0.05
Input Frequency
Range (Note 7 and 8)
Frequency Input
Positive Excursion
Negative Excursion
Minimum Positive
Pulse Width (Note 8)
Minimum Negative
Pulse Width (Note 8)
Input Impedance
Analog Outputs
Output Voltage
(Note 9)
Output Loading
Supply Current
I
DD
Quiescent
(Note 10)
I
SS
Quiescent
(Note 10)
V
DD
Supply
V
SS
Supply
Reference Voltage
V
REF
–V
SS
NOTES:
1.
2.
3.
4.
5.
10
—
100k
10
—
100k
10
—
100k
0.4
– 0.4
—
—
—
—
V
DD
0.4
—
—
5
0.5
10
V
DD
–2
—
—
—
0.4
—
V
DD
–2
—
V
V
µsec
µsec
– 2 – 0.4
5
0.5
10
V
DD
– 1
—
—
—
—
—
—
—
—
—
– 0.4 —
—
—
—
5
0.5
10
—
—
—
MΩ
V
kΩ
Voltage Range of Op Amp Output
for Specified Nonlinearity
Resistive Loading at Output of
Op Amp
Current Required From Positive
Supply During Operation
Current Required From Negative
Supply During Operation
Operating Range of Positive Supply
Operating Range of Negative Supply
Range of Voltage Reference Input
—
2
— V
DD
– 1 —
2
—
—
— V
DD
– 1
2
—
—
—
4
–4
– 2.5
1.5
6
—
1.5
6
—
3
10
– 10
7.5
– 7.5
—
mA
mA
V
V
V
– 1.5 – 6
– 1.5 – 6
—
7.5
4
— 7.5
— – 7.5 – 4 — – 7.5
—
—
– 2.5
—
—
–3
4
—
–4 —
– 2.5 —
Full temperature range. Guaranteed, Not Tested.
I
IN
= 0.
Full temperature range, I
OUT
= 10mA.
I
OUT
= 10µA.
Threshold Detect = 5V, Amp Out = 0V, Full Temperature
Range
6. 10Hz to 100kHz.; Guaranteed, Not Tested
7. 5µsec minimum positive pulse width and 0.5
µsec
minimum
negative pulse width.
8. t
R
= t
F
= 20 nsec.
9. R
L
≥
2kΩ.; Tested @ 10kΩ
10. Full temperature range, V
IN
= – 0.1V.
3-289
8
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
