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LT1351

TYPICAL PERFORMANCE CHARACTERISTICS

Small-Signal Transient

(AV = 1)

Small-Signal Transient

(AV = –1)

Small-Signal Transient

(AV = –1, CL = 1000pF)

1351 G33

1351 G32

1351 G31

Large-Signal Transient

(AV = 1)

Large-Signal Transient

(AV = – 1)

Large-Signal Transient

(AV = 1, CL = 10,000pF)

1351 G36

1351 G35

1351 G34

APPLICATIONS INFORMATION

The LT1351 may be inserted directly into many high

speed amplifier applications improving both DC and AC

performance, provided that the nulling circuitry is re-

moved. The suggested nulling circuit for the LT1351 is

shown in Figure 1.

Layout and Passive Components

The LT1351 amplifier is easy to apply and tolerant of less

than ideal layouts. For maximum performance (for ex-

ample fast settling time) use a ground plane, short lead

lengths and RF-quality bypass capacitors (0.01

µFto0.1µF).

For high drive current applications use low ESR bypass

capacitors (1

µF to 10µF tantalum). For details see Design

Note 50.

The parallel combination of the feedback resistor and gain

setting resistor on the inverting input can combine with

the input capacitance to form a pole which can cause

peaking or even oscillations. For feedback resistors greater

than 10k, a parallel capacitor of value, CF > (RG)(CIN/RF)

should be used to cancel the input pole and optimize

dynamic performance. For applications where the DC

–

1351 F01

100k

0.1

µF

V–

V+

0.1

µF

LT1351

Figure 1. Offset Nulling

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