Texas Instruments THS3111 Evaluation Module THS3111EVM THS3111EVM 데이터 시트

Ω

Ω

 µ

 µ

Ω

 µ

 µ

Ω

Ω 

Ω

SLOS422E – SEPTEMBER 2003 – REVISED OCTOBER 2009

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

The THS3110 and THS3111 are recommended for
high slew rate pulsed applications where the internal
nodes of the amplifier have time to stabilize between
pulses. It is recommended to have at least 20-ns
delay between pulses.

The THS3110 and THS3111 are not recommended
for applications with repetitive signals (sine, square,
sawtooth, or other) that exceed 900 V/

μ

s. Using the

part in these applications results in excessive current
draw from the power supply and possible device
damage.

For applications with high slew rate, repetitive signals,
the

and

(single), or

and

(dual) are recommended.

The THS3110 and THS3111 are unity-gain stable,

Current-feedback amplifiers are highly dependent on

100-MHz, current-feedback operational amplifiers,

the feedback resistor R

F

for maximum performance

designed to operate from a ±5-V to ±15-V power

and stability.

shows the optimal gain setting

supply.

resistors R

F

and R

G

at different gains to give

maximum bandwidth with minimal peaking in the

shows the THS3111 in a noninverting gain

frequency response. Higher bandwidths can be

of 2-V/V configuration typically used to generate the

achieved, at the expense of added peaking in the

performance

curves.

Most

of

the

curves

were

frequency response, by using even lower values for

characterized using signal sources with 50-

Ω

source

R

F

.

Conversely,

increasing

R

F

decreases

the

impedance,

and

with

measurement

equipment

bandwidth, but stability is improved.

presenting a 50-

Ω

load impedance.

±15

—

1.5 k

1

±5

—

1.5 k

±15

1 k

1 k

2

±5

1.15 k

1.15 k

±15

200

806

5

±5

200

806

±15

66.5

604

10

±5

66.5

604

±15

1 k

1 k

–1

±5

1 k

1 k

–2

±15 and ±5

549

1.1 k

–5

±15 and ±5

182

909

–10

±15 and ±5

64.9

649

16

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