ADA4898-1 Datasheet, PDF (1/16 Pages) Analog Devices – High Voltage, Low Noise, Low Distortion, Unity Gain Stable, High Speed Op Amp

High Voltage, Low Noise, Low Distortion,
Unity Gain Stable, High Speed Op Amp
ADA4898-1
FEATURES
Ultralow noise
0.9 nV/√Hz
2.4 pA/√Hz
1.2 nV/√Hz @10 Hz
Ultralow distortion: −93 dBc at 500 kHz
Wide supply voltage range: ±5 V to ±16 V
High speed
−3 dB bandwidth: 65 MHz (G = +1)
Slew rate: 55 V/μs
Unity gain stable
Low input offset voltage: 150 μV maximum
Low input offset voltage drift: 1 μV/°C
Low input bias current: −0.1 μA
Low input bias current drift: 2 nA/°C
Supply current: 8 mA
Power-down feature
APPLICATIONS
Instrumentation
Active filters
DAC buffers
SAR ADC drivers
Optoelectronics
GENERAL DESCRIPTION
The ADA4898-1 is an ultralow noise and distortion, unity gain
stable, voltage feedback op amp that is ideal for use in 16-bit
and 18-bit systems with power supplies from ±5 V to ±16 V.
The ADA4898-1 features a linear, low noise input stage and internal
compensation that achieves high slew rates and low noise.
With the wide supply voltage range, low offset voltage, and wide
bandwidth, the ADA4898-1 is designed to work in the most
demanding applications. The ADA4898-1 also features an input
bias current cancellation mode that reduces input bias current
by a factor of 60.
The ADA4898-1 is available in an 8-lead SOIC package that
features an exposed metal paddle on its underside that improves
heat transfer to the ground plane. This is a significant improvement
over traditional plastic packages. The ADA4898-1 is rated to
work over the extended automotive temperature range of
−40°C to +105°C.
CONNECTION DIAGRAM
ADA4898-1
NC 1
–IN 2
+IN 3
–V_S 4
8 PD
7 +V_S
6 OUT
5 NC
NC = NO CONNECT
Figure 1. 8-Lead SOIC_N_EP (RD-8)
10
10
CURRENT
1
VOLTAGE
1
0.1
1
0.1
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 2. Input Voltage Noise and Current Noise vs. Frequency
Rev. 0
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]
©2008 Analog Devices, Inc. All rights reserved.