LT1220 데이터 시트보기 (PDF) - Linear Technology

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LT1220

45MHz, 250V/µs Operational Amplifier

Linear Technology 

LT1220

TYPICAL PERFORMANCE CHARACTERISTICS

Small Signal, AV = 1

Large Signal, AV = 1

Large Signal, AV = 1,

CL = 10,000pF

RG = 0

VS = ±15V

VIN = 100mV

f = 5MHz

LT1220 • TPC19

Small Signal, AV = – 1

RG = 0

VS = ±15V

VIN = 20V

f = 2MHz

LT1220 • TPC20

Large Signal, AV = – 1

RG = 0

VS = ±15V

VIN = 10V

f = 20kHz

LT1220 • TPC21

Small Signal, AV = – 1,

CL = 1,000pF

RF = RG = 1k VIN = 100mV

VS = ±15V f = 5MHz

LT1220 • TPC22

RF = RG = 1k VIN = 20V

VS = ±15V f = 2MHz

LT1220 • TPC23

RF = RG = 1k

VS = ±15V

VIN = 200mV

f = 200kHz

LT1220 • TPC24

APPLICATIONS INFORMATION

The LT1220 may be inserted directly into HA2505/15/25,

HA2541/2/4, AD817, AD847, EL2020, EL2044 and LM6361

applications, provided that the nulling circuitry is removed.

The suggested nulling circuit for the LT1220 is shown in

the following figure.

Offset Nulling

V+

5k

1

3+ 8

LT1220 7 6

2–

4

V–

0.1µF

0.1µF

LT1220 • AI01

Layout and Passive Components

The LT1220 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 (0.01µF to 0.1µF).

For high driver current applications use low ESR bypass

capacitors (1µF to 10µF tantalum). Sockets should be

avoided when maximum frequency performance is re-

quired, although low profile sockets can provide reason-

able performance up to 50MHz. For more details see

Design Note 50. Feedback resistors greater than 5k are not

recommended because a pole is formed with the input

capacitance which can cause peaking or oscillations.

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