© 2002 Microchip Technology Inc.

DS21483B-page 5

TC9400/9401/9402

Frequency Input

Positive Excursion

0.4

—

0.4

—

0.4

—

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

—

µsec

Time between

Threshold Crossings

Minimum Negative

Pulse Width

(Note 8)

—

0.5

—

—

0.5

—

—

0.5

—

µsec

Time Between

Threshold Crossings

Input Impedance

—

10

—

—

10

—

—

10

M

Ω

Analog Outputs

TC9400

TC9401

TC9402

Output Voltage

(Note 9)

—

—

—

—

—

V

Voltage Range of Op

Amp Output for Speci-

fied Non-Linearity

Output Loading

2

—

—

2

—

—

2

—

—

k

Ω

Resistive Loading at

Output of Op Amp

Supply Current

TC9400

TC9401

TC9402

(Note 10)

—

1.5

6

—

1.5

6

—

3

10

mA

Current Required from

Positive Supply During

Operation

(Note 10)

—

-1.5

-6

-1.5

-6

—

-3

-10

mA

Current Required from

Negative Supply

During Operation

4

—

7.5

4

—

7.5

4

—

7.5

V

Operating Range of

Positive Supply

-4

—

-7.5

-4

—

-7.5

-4

—

-7.5

V

Operating Range of

Negative Supply

Reference Voltage

-2.5

—

—

-2.5

—

—

-2.5

—

—

V

Range of Voltage

Reference Input

TC940X ELECTRICAL SPECIFICATIONS (CONTINUED)

Parameter

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Units

Test Conditions

Note

1:

Full temperature range; not tested.

2:

3:

4:

5:

Threshold Detect = 5V, Amp Out = 0V, full temperature range.

6:

10Hz to 100kHz; not tested.

7:

5

µsec minimum positive pulse width and 0.5µsec minimum negative pulse width.

8:

9: