ADA4000-1_09 Datasheet, PDF (1/16 Pages) Analog Devices – Low Cost, Precision JFET Input Operational Amplifiers

Low Cost, Precision JFET
Input Operational Amplifiers
ADA4000-1/ADA4000-2/ADA4000-4
FEATURES
High slew rate: 20 V/μs
Fast settling time
Low offset voltage: 1.70 mV maximum
Bias current: 40 pA maximum
±4 V to ±18 V operation
Low voltage noise: 16 nV/√Hz
Unity gain stable
Common-mode voltage includes +VS
Wide bandwidth: 5 MHz
APPLICATIONS
Reference gain/buffers
Level shift/driving
Active filters
Power line monitoring/control
Current/voltage sense or monitoring
Data acquisition
Sample-and-hold circuits
Integrators
GENERAL DESCRIPTION
The ADA4000-1/ADA4000-2/ADA4000-4 are JFET input
operational amplifiers featuring precision, very low bias current,
and low power. Combining high input impedance, low input
bias current, wide bandwidth, fast slew rate, and fast settling
time, the ADA4000-1/ADA4000-2/ADA4000-4 are ideal
amplifiers for driving analog-to-digital inputs and buffering
digital-to-analog converter outputs. The input common-mode
voltage includes the positive power supply, which makes the
part an excellent choice for high-side signal conditioning.
Additional applications for the ADA4000-1/ADA4000-2/
ADA4000-4 include electronic instruments, ATE amplification,
buffering, integrator circuits, instrumentation-quality photodiode
amplification, and fast precision filters (including PLL filters).
The parts also include utility functions, such as reference
buffering, level shifting, control I/O interface, power supply
control, and monitoring functions.
PIN CONFIGURATIONS
OUT 1
5 V+
ADA4000-1
V– 2 ^{TOP VIEW}
(Not to Scale)
+IN 3
4 –IN
Figure 1. 5-Lead TSOT (UJ-5)
NC 1
8 NC
–IN 2 ADA4000-1 7 V+
+IN 3 TOP VIEW 6 OUT
(Not to Scale)
V– 4
5 NC
NC = NO CONNECT
Figure 2. 8-Lead SOIC (R-8)
OUT A 1
8 +V
–IN A 2 ADA4000-2 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
(Not to Scale)
–V 4
5 +IN B
Figure 3. 8-Lead SOIC (R-8)
OUT A 1
8 +V
–IN A 2 _ADA4000-2 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
–V 4 ^{(Not to Scale)} 5 +IN B
Figure 4. 8-Lead MSOP (RM-8)
OUT A 1
14 OUT D
–IN A 2
13 –IN D
+IN A 3 _ADA4000-4 12 +IN D
+V 4 TOP VIEW 11 –V
+IN B 5 ^{(Not to Scale)} 10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
Figure 5. 14-Lead SOIC (R-14)
OUT A 1
14 OUT D
–IN A 2
13 –IN D
+IN A 3
+V 4
+IN B 5
ADA4000-4 ^{12 +IN D}
TOP VIEW
(Not to Scale)
11 –V
10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
Figure 6. 14-Lead TSSOP (RU-14)
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
www.analog.com
Fax: [phone] ©2007—2009 Analog Devices, Inc. All rights reserved.