SN75207B

DUAL SENSE AMPLIFIER FOR MOS MEMORIES

OR DUAL HIGH-SENSITIVITY LINE RECEIVERS

SLLS096C – JULY 1973 – REVISED MARCH 1997

3

POST OFFICE BOX 655303

design characteristics

The SN75207B line receivers/sense amplifiers are TTL-compatible, dual circuits intended for use in high-speed,

data-transmission systems or MOS memory systems. They are designed to detect low-level differential signals

in the presence of common-mode noise and variations of temperature and supplies. The dc specifications

reflect worst-case conditions of temperature, supply voltages, and input voltages.

The input common-mode voltage range is

±3 V. This is adequate for application in most systems. In systems

with requirements for greater common-mode voltage range, input attenuators may be used to decrease the

noise to an acceptable level at the receiver-input terminals.

The circuits feature individual strobe inputs for each channel and a strobe input common to both channels for

logic versatility. The strobe inputs are tested to ensure 400 mV of dc noise margin when interfaced with Series

54/74 TTL.

The circuits feature high input impedance and low input currents, which induce very little loading on the

transmission line. This makes these devices especially useful in party-line systems. The excellent input

sensitivity (3 mV typical) is particularly important when data is to be detected at the end of a long transmission

line and the amplitude of the data has deteriorated due to cable losses. The circuits are designed to detect input

signals of 10-mV (or greater) amplitude and convert the polarity of the signal into appropriate TTL-compatible

output logic levels.

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Strobe input voltage

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total dissipation

See Dissipation Rating Table

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: A. All voltage values, except differential voltages, are with respect to GND terminal.

1. Differential input voltage values are at the noninverting (A) terminal with respect to the inverting (B) terminal.

2. Common-mode input voltage is the average of the voltages at the A and B inputs.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

N

1050 mW

9.2 mW/

°C

636 mW