ALD2732SAL datasheet(6/9 Pages) ALD

6 / 9 page

ALD2732A/ALD2732

Advanced Linear Devices

6 of 9

TYPICAL APPLICATIONS

LOW VOLTAGE INSTRUMENTATION AMPLIFIER

50K

100K

f max = 20KHz

-40mV ≤ VIN ≤ 40mV

0.1µF

V+

V-

100K

500K

0.1µF

V+

V+ 1M

V-

0.1µF

VOUT

ALD1732

1/2 ALD2732

GAIN = 25 V- ≤ VOUT ≤ V+ All resistors are 1%

V+ = +1.0V V- = -1.0V Short Circuit Input Current 1µA

0.1µF

V+

V-

1/2 ALD2732

V- = - 2.5V

10M

RIN = 10MΩ Accuracy limited by resistor tolerances and input offset voltage

V+ = +2.5V

0.1µF

VOUT

V- ≤ VIN ≤ V+

V- ≤ VOUT ≤ V+

VOUT = V1 + V2 - V3 - V4

1/2 ALD2732

HIGH INPUT IMPEDANCE RAIL-TO-RAIL

PRECISION DC SUMMING AMPLIFIER

RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER

OUTPUT

0.1µF

* See Rail to Rail Waveform

0≤ VIN ≤ 5V

VIN

ZIN = 1012Ω

1/2 ALD2732

PHOTO DETECTOR CURRENT TO

VOLTAGE CONVERTER

+2.5V

-2.5V

RF = 5M

PHOTODIODE

VOUT = 1 X RF

RL = 100K

1/2 ALD2732

RAIL-TO-RAIL WINDOW COMPARATOR

+5V

VIN

100K

VREF (HIGH)

VREF (LOW)

1/4 74 C00

1/2 ALD2732

VOUT

VOUT (LOW) FOR VREF (LOW) < VIN < VREF(HIGH)

100K

1/2 ALD2732

Performance waveforms.

Upper trace is the output of a

Wien Bridge Oscillator. Lower

trace is the output of Rail-to-rail

voltage follower.

+5V

OUTPUT

+5V

INPUT

RAIL-TO-RAIL WAVEFORM

WIEN BRIDGE OSCILLATOR (RAIL-TO-RAIL)

SINE WAVE GENERATOR

10K

+2.5V

-2.5V

.01µF

C = .01µF

R = 10K

1/2 ALD2732

f =

= 1.6KHZ

2πRC

VOUT

* See Rail to Rail Waveform

ALD2732SAL Datasheet(PDF) 6 Page - Advanced Linear Devices

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