MAX475 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX475

Single/Dual/Quad, 10MHz Single-Supply Op Amps

Maxim Integrated 

Single/Dual/Quad, 10MHz

Single-Supply Op Amps

Driving 390pF in parallel with 10kΩ,

VCC = 5V, buffer configuration

Figure 3. MAX474 Driving 390pF

MAX473/MAX474/

MAX475

RL

10Ω

VOUT

VIN

CL

Figure 4. Capacitive-Load Driving Circuit

Figure 5. The MAX473 easily drives 1000pF using the

Capacitive-Load Driving Circuit (Figure 4).

100

SMALL-SIGNAL

GAIN BANDWIDTH

10

1

FULL-POWER

BANDWIDTH

0.1

0

1

2

3

4

OUTPUT VOLTAGE SWING (Vp-p)

Figure 6. Full-Power Bandwidth vs. Peak-to-Peak AC Voltage

Full-Power Bandwidth

The MAX473/MAX474/MAX475’s fast 15V/µs slew rate

maximizes full-power bandwidth (FPBW). The FPBW is

given by:

SR

FPBW (Hz) = —————————————

π [VOUT peak-to-peak(max)]

where the slew rate (SR) is 15V/µs min. Figure 6 shows

the full-power bandwidth as a function of the peak-to-

peak AC output voltage.

Layout

A good layout improves performance by decreasing

the amount of stray capacitance at the amplifier’s

inputs and output. Since stray capacitance might be

unavoidable, minimize trace lengths and resistor leads,

and place external components as close to the pins as

possible.

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