SN75207B

DUAL SENSE AMPLIFIER FOR MOS MEMORIES

OR DUAL HIGH-SENSITIVITY LINE RECEIVERS

SLLS096C – JULY 1973 – REVISED MARCH 1997

6

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

tw1

50

Ω

VOLTAGE WAVEFORMS

VOL

VOH

0 V

3 V

1.5 V

1.5 V

tw2

1.5 V

1.5 V

tPHL(S)

tPLH(S)

1.5 V

tPLH(D)

1.5 V

tPHL(D)

Y

VOL

VOH

G or S

3 V

40 mV

B

10 mV

10 mV

0 V

40 mV

TEST CIRCUIT

Pulse

Generator

(see Note A)

Strobe

Input

(see Note B)

50

Ω

VCC+

2G

S

1G

See Note D

470

Ω

Output

1Y

2Y

VCC –

2B

2A

1B

1A

100 mV

Vref

Differential

Input

CL = 50 pF

(see Note C)

Pulse

Generator

(see Note A)

NOTES: A. The pulse generators have the following characteristics: ZO = 50 Ω, tr ≤ 5 ns, tf ≤ 5 ns, tw1 = 500 ns with PRR = 1 MHz, tw2 = 1 µs

with PRR = 500 kHz.

B. Strobe input pulse is applied to Strobe 1G when inputs 1A–1B are being tested, to Strobe S when inputs 1A–1B or 2A–2B are being

tested, and to Strobe 2G when inputs 2A–2B are being tested.

C. CL includes probe and jig capacitance.

D. All diodes are 1N916.

Figure 1. Test Circuit and Voltage Waveforms