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PDF ALD2722 Data sheet ( Hoja de datos )
| Número de pieza | ALD2722 | |
| Descripción | DUAL EPAD TM OPERATIONAL AMPLIFIER | |
| Fabricantes | Advanced Linear Devices | |
| Logotipo |  |
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ADVANCED
LINEAR
DEVICES, INC.
DUAL EPAD™ OPERATIONAL AMPLIFIER
ALD2722E/ALD2722
KEY FEATURES
• 5V single supply operation
• EPAD ( Electrically Programmable Analog Device)
• User programmable VOS trimmer
• Computer-assisted trimming
• Rail-to-rail input/output
• Compatible with standard EPAD Programmer
www.DataSheet4• U.Ecoamch amplifier VOS can be trimmed to a different Vos level
• High precision through in-system circuit trimming
• Reduces or eliminates VOS, PSRR, CMRR and TCVOS errors
• System level “calibration” capability
• Application Specific Programming mode
• In-System Programming mode
• Electrically programmable to compensate for
external component tolerances
• Achieves 0.01pA input bias current and 25µV
input offset voltage
GENERAL DESCRIPTION
The ALD2722E/ALD2722 is a dual monolithic rail-to-rail precision CMOS
operational amplifier with integrated user programmable EPAD (Electri-
cally Programmable Analog Device) based offset voltage adjustment. The
ALD2722E/ALD2722 is a dual version of the ALD1722E/ALD1722 opera-
tional amplifier. Each ALD2722E/ALD2722 operational amplifier features
individual, user-programmable offset voltage trimming resulting in signifi-
cantly enhanced total system performance and user flexibility. EPAD
technology is an exclusive ALD design which has been refined for analog
applications where precision voltage trimming is necessary to achieve a
desired performance. It utilizes CMOS FETs as in-circuit elements for
trimming of offset voltage bias characteristics with the aid of a personal
computer under software control. Once programmed, the set parameters
are stored indefinitely. EPAD offers the circuit designer a convenient and
cost-effective trimming solution for achieving the very highest amplifier/
system performance.
The ALD2722E/ALD2722 dual operational amplifier features rail-to-rail
input and output voltage ranges, tolerance to overvoltage input spikes of
300mV beyond supply rails, high capacitive loading up to 4000pF, ex-
tremely low input currents of 0.01pA typical, high open loop voltage gain,
useful bandwidth of 1.5MHz, slew rate of 1.9V/µs, and low typical supply
current of 2mA for both amplifiers.
ORDERING INFORMATION
Operating Temperature Range
-55°C to +125°C
0°C to +70°C
0°C to +70°C
14-Pin
CERDIP
Package
14-Pin
Small Outline
Package (SOIC)
14-Pin
Plastic Dip
Package
ALD2722E DB
ALD2722 DB
ALD2722E SB
ALD2722 SB
ALD2722E PB
ALD2722 PB
BENEFITS
• Eliminates manual and elaborate
system trimming procedures
• Remote controlled automated trimming
• In-System Programming capability
• No external components
• No internal clocking noise source
• Simple and cost effective
• Small package size
• Extremely small total functional
volume size
• Low system implementation cost
• Micropower
APPLICATIONS
• Sensor interface circuits
• Transducer biasing circuits
• Capacitive and charge integration circuits
• Biochemical probe interface
• Signal conditioning
• Portable instruments
• High source impedance electrode
amplifiers
• Precision Sample and Hold amplifiers
• Precision current to voltage converter
• Error correction circuits
• Sensor compensation circuits
• Precision gain amplifiers
• Periodic In-system calibration
• System output level shifter
PIN CONFIGURATION
-IN A 1
+IN A
V-
2
3
N/C 4
N/C 5
+IN B
-IN B
6
7
14 VE 2A
13 VE 1A
12 OUT A
11 V+
10 OUT B
9 VE 1B
8 VE 2B
TOP VIEW
DB, PB, SB PACKAGE
* Contact factory for industrial temperature range
© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
1 page  
VS = ±2.5V -55°C ≤ TA ≤ +125°C unless otherwise specified
Parameter
2722E
2722
Symbol Min Typ Max Min Typ
Initial Input offset Voltage
Input Offset Current
Input Bias Current
Initial Power Supply
Rejection Ratio 8
VOS i
IOS
IB
PSRR i
0.7
2.0
2.0
85
0.7
85
Initial Common Mode
www.DataSheet4U.com
Rejection Ratio 8
CMRR i
97
97
Large Signal Voltage Gain
AV
10 25
10 25
Output Voltage Range
VO low
VO high
2.3
-2.4 -2.3
2.4
2.3
-2.4
2.4
Max
2.0
2.0
Unit Test Conditions
mV RS ≤ 100KΩ
nA
nA
dB RS ≤ 100KΩ
dB RS ≤ 100KΩ
V/mV RL = 10KΩ
-2.3 V
V
RL = 10KΩ
TA = 25oC VS = ±5.0V unless otherwise specified
Parameter
Symbol
2722E
Min Typ Max
Initial Power Supply
Rejection Ratio 8
PSRR i
85
Initial Common Mode
Rejection Ratio 8
CMRRi
97
Large Signal Voltage Gain
AV
250
Output Voltage Range
Bandwidth
VO low
VO high
BW
4.8
-4.9 -4.8
4.9
1.7
Slew Rate
SR 2.8
2722
Min Typ
Max Unit Test Conditions
85 dB RS ≤ 100KΩ
97 dB RS ≤ 100KΩ
250 V/mV RL = 10KΩ
-4.9 -4.8 V
4.8 4.9
RL = 10KΩ
1.7 MHz
2.8 V/µs AV = +1, CL = 50pF
ALD2722E/ALD2722
Advanced Linear Devices
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ALD2722.PDF ] | |
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