A
L
D
DVANCED
INEAR
EVICES, INC.
ALD4701A/ALD4701B
ALD4701
QUAD MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
FEATURES
GENERAL DESCRIPTION
• All parameters specified for +5V single
supply or ±2.5V dual supply systems
• Rail-to-rail input and output voltage ranges
• Unity gain stable
• Extremely low input bias currents -- 1.0pA
• High source impedance applications
• Dual power supply ±1.0V to ±5.0V
• Single power supply +2V to +10V
• High voltage gain
The ALD4701A/ALD4701B/ALD4701 is a quad monolithic CMOS
micropower high slew rate operational amplifier intended for a broad range
ofanalogapplicationsusing±1Vto±5Vdualpowersupplysystems, aswell
as +2V to +10V battery operated systems. All device characteristics are
specified for +5V single supply or ±2.5V dual supply systems. Total supply
current for all four operational amplifiers is 1mA maximum at 5V supply
voltage. It is manufactured with Advanced Linear Devices' enhanced
ACMOS silicon gate CMOS process.
• Output short circuit protected
• Unity gain bandwidth of 0.7MHz
• Slew rate of 0.7V/µs
• Low power dissipation
• Symmetrical output drive
The ALD4701A/ALD4701B/ALD4701 is designed to offer a trade-off of
performance parameters providing a wide range of desired specifications.
It has been developed specifically for the +5V single supply or ±1V to ±5V
dual supply user and offers the popular industry standard pin configuration
of LM324 types and ICL7641 types.
• Suitable for rugged, temperature-extreme
environments
Several important characteristics of the device make application easier to
implement at these voltages. First, each operational amplifier can operate
with rail to rail input and output voltages. This means the signal input
voltage and output voltage can be equal to or near to the positive and
negative supply voltages. This feature allows numerous analog serial
stages and flexibility in input signal bias levels. Second, each device was
designed to accommodate mixed applications where digital and analog
circuitsmayoperateoffthesamepowersupplyorbattery. Third, theoutput
stage can typically drive up to 50pF capacitive and 10KΩ resistive loads.
APPLICATIONS
• Voltage follower/buffer/amplifier
• Charge integrator
• Photodiode amplifier
• Data acquisition systems
• High performance portable instruments
• Signal conditioning circuits
• Sensor and transducer amplifiers
• Low leakage amplifiers
• Active filters
These features, combined with extremely low input currents, high open
loop voltage gain of 100V/mV, useful bandwidth of 700KHz, a slew rate of
0.7V/µs, lowpowerdissipationof5mW, lowoffsetvoltageandtemperature
drift, make the ALD4701A/ALD4701B/ALD4701 a versatile, micropower
quad operational amplifier.
• Sample/Hold amplifier
• Picoammeter
TheALD4701A/ALD4701B/ALD4701,designedandfabricatedwithsilicon
gate CMOS technology, offers 1pA typical input bias current. Due to low
voltage and low power operation, reliability and operating characteristics,
such as input bias currents and warm up time, are greatly improved.
Additionally, robust design and rigorous screening make this device
especiallysuitableforoperationintemperature-extremeenvironmentsand
rugged conditions.
• Current to voltage converter
PIN CONFIGURATION
1
2
3
OUT
-IN
14 OUT
A
A
A
D
13 -IN
D
+IN
12
+IN
D
ORDERING INFORMATION (“L” suffix denotes lead-free (RoHS))
Operating Temperature Range
+
B
B
B
V
V-
4
5
11
10
0°C to +70°C
0°C to +70°C
-55°C to 125°C
+IN
+IN
-IN
C
14-Pin
14-Pin
14-Pin
CERDIP
Package
6
7
9
8
-IN
C
Small Outline
Package (SOIC)
Plastic Dip
Package
OUT
OUT
C
ALD4701ASBL
ALD4701BSBL
ALD4701SBL
ALD4701APBL
ALD4701BPBL
ALD4701PBL
ALD4701ADB
ALD4701BDB
ALD4701DB
TOP VIEW
SBL, PBL, DB PACKAGES
* Contact factory for leaded (non-RoHS) or high temperature versions.
Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
www.aldinc.com