SN75207B Datasheet, PDF (3/12 Pages) Texas Instruments – DUAL SENSE AMPLIFIER FOR MOS MEMORIES OR DUAL HIGH-SENSITIVITY LINE RECEIVERS

SN75207B
DUAL SENSE AMPLIFIER FOR MOS MEMORIES
OR DUAL HIGH-SENSITIVITY LINE RECEIVERS
SLLS096C – JULY 1973 – REVISED MARCH 1997
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.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Supply voltage, V_{CC +} (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Supply voltage, V_{CC –} (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 7 V
Differential input voltage, V_ID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 6 V
Common-mode input voltage, V_IC (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 5 V
Strobe input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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.
PACKAGE
N
DISSIPATION RATING TABLE
TA ≤ 25°C
POWER RATING
1050 mW
DERATING FACTOR
ABOVE TA = 25°C
9.2 mW/°C
TA = 70°C
POWER RATING
636 mW
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