TC9400_06 Datasheet, PDF (5/24 Pages) Microchip Technology – Voltage-to-Frequency/Frequency-to-Voltage Converters

TC9400/9401/9402
TABLE 1-1: TC940X ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: V_DD = +5V, V_SS = -5V, V_GND = 0V, V_REF = -5V, R_BIAS = 100 kΩ, Full Scale = 10 kHz, 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).
Parameter
Min Typ Max Min Typ Max Min Typ Max Units
Test Conditions
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 —
5
——
5
——
5
Pulse Width
(Note 8)
—
μsec Time between
Threshold Crossings
Minimum Negative — 0.5 — — 0.5 — — 0.5
—
μsec Time Between
Pulse Width
Threshold Crossings
(Note 8)
Input Impedance
—
10
——
10
—
—
10
MΩ
Analog Outputs
TC9400
TC9401
TC9402
Output Voltage
(Note 9)
Output Loading
— V_DD – 1 — — V_DD – 1 — — V_DD – 1 —
2
—
—2
—
—2
—
—
V
Voltage Range of Op
Amp Output for Speci-
fied Non-Linearity
kΩ Resistive Loading at
Output of Op Amp
Supply Current
TC9400
TC9401
TC9402
I_DD Quiescent
(Note 10)
I_SS Quiescent
(Note 10)
V_DD Supply
V_SS Supply
— 1.5
6—
1.5
6—
3
10
— -1.5 -6
-1.5 -6 —
-3
-10
4
— 7.5 4
— 7.5 4
—
7.5
-4
— -7.5 -4
— -7.5 -4
—
-7.5
mA Current Required from
Positive Supply During
Operation
mA Current Required from
Negative Supply
During Operation
V
Operating Range of
Positive Supply
V
Operating Range of
Negative Supply
Reference Voltage
V_REF – V_SS
-2.5 —
— -2.5 —
— -2.5 —
—
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: 5μsec minimum positive pulse width and 0.5μsec minimum negative pulse width.
8: t_R = t_F = 20nsec.
9: R_L ≥ 2 kΩ, tested @ 10 kΩ.
10: Full temperature range, V_IN = -0.1V.
V
Range of Voltage
Reference Input
© 2006 Microchip Technology Inc.
DS21483C-page 5