ald1702b Advanced Linear Devices Inc (ALD), ald1702b Datasheet

ald1702b

Manufacturer Part Number

ald1702b

Description

5v Rail-to-rail Precision Operational Amplifier

Manufacturer

Advanced Linear Devices Inc (ALD)

Datasheet

1.ALD1702B.pdf (6 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ald1702bSAL

Manufacturer:

Advanced Linear Devices

Quantity:

135

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* Contact factory for industrial temperature range

characteristics of the device make many applications easy to implement

for these supply voltages. First, the operational amplifier can operate with

rail to rail input and output voltages. This feature allows numerous analog

serial stages to be implemented without losing operating voltage margin.

Secondly, the device was designed to accommodate mixed applications

where digital and analog circuits may work off the same 5V power supply.

Thirdly, the output stage can drive up to 400pF capacitive and 5K

resistive loads in non-inverting unity gain connection and double the

capacitance in the inverting unity gain mode.

These features, coupled with extremely low input currents, high voltage

gain, useful bandwidth of 1.5MHz, slew rate of 2.1V/ s, low power

dissipation, low offset voltage and temperature drift, make the ALD1702/

ALD1703 a truly versatile, user friendly, operational amplifier.

The ALD1702/ALD1703 is designed and fabricated with silicon gate

CMOS technology, and offers 1pA typical input bias current. On-chip offset

voltage trimming allows the device to be used without nulling in most

applications. The device offers typical offset drift of less than 7 V/ C which

eliminates many trim or temperature compensation circuits. For precision

applications, the ALD1702 is designed to settle to 0.01% in 8 s.

ORDERING INFORMATION

GENERAL DESCRIPTION

The ALD1702/ALD1703 is a monolithic operational amplifier intended

primarily for a wide range of analog applications in +5V single power

supply and 5V dual power supply systems as well as +4V to +12V battery

operated systems. All device characteristics are specified for +5V single

supply or 2.5V dual supply systems. It is manufactured with Advanced

Linear Devices' enhanced ACMOS silicon gate CMOS process.

The device is designed to offer a balanced trade-off of performance

parameters providing a wide range of desired specifications. It offers the

industry pin configuration of A741 and ICL7611 types.

The ALD1702/ALD1703 has been developed specifically with the 5V

single supply or

-55 C to +125 C

8-Pin

CERDIP

Package

ALD1702A DA

ALD1702B DA

ALD1702 DA

ALD1703 DA

INEAR

DVANCED

EVICES,

2.5 dual supply user in mind. Several important

Operating Temperature Range

5V RAIL-TO-RAIL PRECISION OPERATIONAL AMPLIFIER

NC.

0 C to +70 C

8-Pin

Small Outline

Package (SOIC)

ALD1702B SA

ALD1702 SA

ALD1703 SA

ALD1702A SA

0 C to +70 C

8-Pin

Plastic Dip

Package

ALD1702A PA

ALD1702B PA

ALD1702 PA

ALD1703 PA

FEATURES

• Rail-to-rail input and output voltage ranges

• All parameters specified for +5V single

• High load capacitance capability --

• No frequency compensation required --

• Extremely low input bias currents --

• Ideal for high source impedance applications

• Dual power supply 2.5V to 5.0V operation

• Single power supply +5V to +12V operation

• High voltage gain -- typically 85V/mV

• Drive as low as 2K load with 5mA

• Output short circuit protected

• Unity gain bandwidth of 1.5MHz

• Slew rate of 2.1V/ s (1.4V/ s min.)

• Low power dissipation

APPLICATIONS

• Voltage amplifier

• Voltage follower/buffer

• Charge integrator

• Photodiode amplifier

• Data acquisition systems

• High performance portable instruments

• Signal conditioning circuits

• Sensor and transducer amplifiers

• Low leakage amplifiers

• Active filters

• Sample/Hold amplifier

• Picoammeter

• Current to voltage converter

• Coaxial cable driver

PIN CONFIGURATION

N/C

+IN

supply or 2.5V dual supply systems.

4000pF typical

unity gain stable

1.0pA typical (30pA max.)

@ 2.5V and 250V/mV @ 5.0V

drive current

(1.0MHz min.)

-IN

V -

* N/C Pin is internally connected. Do not connect externally.

DA, PA, SA PACKAGE

ALD1702A/ALD1702B

TOP VIEW

ALD1702/ALD1703

N/C

V +

OUT

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ald1702b Summary of contents

Page 1

... Low leakage amplifiers • Active filters • Sample/Hold amplifier • Picoammeter • Current to voltage converter • Coaxial cable driver PIN CONFIGURATION +70 C N/C 8-Pin Plastic Dip -IN Package +IN ALD1702A PA ALD1702B ALD1702 PA ALD1703 PA * N/C Pin is internally connected. Do not connect externally. ALD1702A/ALD1702B ALD1702/ALD1703 ...

Page 2

... O Output Short Circuit Current Supply Current I 1.1 S Power P 5.5 D Dissipation Input Capacitance Bandwidth B 1.0 1.5 W Slew Rate S 1.4 2.1 R Rise time t 0.2 r ALD1702A/ALD1702B ALD1702/ALD1703 PA, SA package DA package 1702B 1702 Max Min Typ Max Min Typ 6.0 2.0 6.0 2.0 12.0 4.0 12.0 4.0 0.9 2.0 1.7 2.8 25 1.0 25 1.0 240 240 30 1.0 30 1.0 300 300 5 ...

Page 3

... Input Bias I B Current Power Supply PSRR 60 Rejection Ratio Common Mode CMRR 60 Rejection Ratio Large Signal Voltage Gain Output Voltage V low O Range V high 4.8 O ALD1702A/ALD1702B ALD1702/ALD1703 1702B 1702 Max Min Typ Max Min Typ 10 10 400 400 4000 4000 26 26 0.6 0.6 8.0 8.0 3.0 3.0 1702B 1702 ...

Page 4

... AMBIENT TEMPERATURE ( C) ALD1702A/ALD1702B ALD1702/ALD1703 aware that this switching does take place if the operational amplifier is connected as a unity gain buffer and should make provision in his design to allow for input offset voltage variations. 3. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room temperature ...

Page 5

... FUNCTION OF LOAD RESISTANCE 1000 100 10K 100K LOAD RESISTANCE ( ) VOLTAGE NOISE DENSITY AS A FUNCTION OF FREQUENCY 150 125 100 100 1K 10K FREQUENCY (Hz) ALD1702A/ALD1702B ALD1702/ALD1703 2.5V S +75 +100 +125 = 2. 1000K 100K 1000K ...

Page 6

... Capacitance 4000pF WIEN BRIDGE OSCILLATOR (RAIL-TO -RAIL) SINE WAVE GENERATOR +2. -2.5V 10K . . 10K 1.6KHz See rail to rail waveform ALD1702A/ALD1702B ALD1702/ALD1703 TYPICAL APPLICATIONS INPUT 0.1 F OUTPUT OUTPUT =10K L .01 F OUTPUT PHOTODIODE . 4000pF L RAIL-TO-RAIL VOLTAGE COMPARATOR OUTPUT ...

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