Datasheet
© 2007 Microchip Technology Inc. DS21483D-page 5
TC9400/9401/9402
Frequency Input
Positive Excursion 0.4 — V
DD
0.4 — V
DD
0.4 — V
DD
V Voltage Required to
Turn Threshold
Detector On
Negative Excursion -0.4 -2 -0.4 — -2 -0.4 — -2 V Voltage Required to
Turn Threshold
Detector Off
Minimum Positive
Pulse Width
(Note 8)
—5——5——5 — μs Time between
Threshold Crossings
Minimum Negative
Pulse Width
(Note 8)
— 0.5 — — 0.5 — — 0.5 — μs Time Between
Threshold Crossings
Input Impedance — 10 — — 10 — — 10 MΩ
Analog Outputs TC9400 TC9401 TC9402
Output Voltage
(Note 9)
—V
DD
– 1 — — V
DD
– 1 — — V
DD
– 1 — V Voltage Range of Op
Amp Output for
Specified Non-Linearity
Output Loading 2 — — 2 — — 2 — — kΩ Resistive Loading at
Output of Op Amp
Supply Current TC9400 TC9401 TC9402
I
DD
Quiescent
(Note 10)
— 1.5 6 — 1.5 6 — 3 10 mA Current Required from
Positive Supply During
Operation
I
SS
Quiescent
(Note 10)
— -1.5 -6 -1.5 -6 — -3 -10 mA Current Required from
Negative Supply During
Operation
V
DD
Supply 4 — 7.5 4 — 7.5 4 — 7.5 V Operating Range of
Positive Supply
V
SS
Supply -4 — -7.5 -4 — -7.5 -4 — -7.5 V Operating Range of
Negative Supply
Reference Voltage
V
REF
– V
SS
-2.5 — — -2.5 — — -2.5 — — V Range of Voltage
Reference Input
TC940X ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: unless otherwise specified, V
DD
= +5V, V
SS
= -5V, V
GND
= 0V, V
REF
= -5V, R
BIAS
= 100 kΩ, Full Scale =
10 kHz. 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).
Parameter Min Typ Max Min Typ Max Min Typ Max Units Test Conditions
Note 1: Full temperature range; not tested.
2: I
IN
= 0.
3: Full temperature range, I
OUT
= 10 mA.
4: I
OUT
= 10 µA.
5: Threshold Detect = 5V, Amp Out = 0V, full temperature range.
6: 10 Hz to 100 kHz; not tested.
7: 5 µs minimum positive pulse width and 0.5 µs minimum negative pulse width.
8: t
R
= t
F
= 20 ns.
9: R
L
≥ 2kΩ, tested @ 10 kΩ.
10: Full temperature range, V
IN
= -0.1V.