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ADA4625-2

更新时间： 2024-02-14 03:48:22
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亚德诺 - ADI /
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35页 1281K
描述
36V 18MHz Low Noise, Fast Settling Single Supply, RRO, JFET Op Amp

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ADA4625-2 数据手册

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36 V, 18 MHz, Low Noise, Fast Settling  
Single Supply, RRO, JFET Op Amp  
Data Sheet  
ADA4625-1/ADA4625-2  
FEATURES  
PIN CONFIGURATION  
Wide gain bandwidth product: 18 MHz typical  
High slew rate: 48 V/µs typical  
ADA4625-1  
NC  
–IN  
+IN  
V–  
1
2
3
4
8
7
6
5
NC  
V+  
Low voltage noise density: 3.3 nV/√Hz typical at 1 kHz  
Low peak-to-peak noise: 0.15 µV p-p, 0.1 Hz to 10 Hz  
Low input bias current: 15 pA typical at TA = 25°C  
Low offset voltage: 80 µV maximum at TA = 25°C  
Offset voltage drift: 1.2 µV/°C maximum at TA = −40°C to 85°C  
Fast settling: 0.01% in 700 ns typical  
Wide range of operating voltages  
OUT  
NC  
TOP VIEW  
(Not to Scale)  
NOTES  
1. NC = NO CONNECTION. DO NOT CONNECT TO THIS PIN.  
2. EXPOSED PAD. CONNECT THE EXPOSED PAD TO GND,  
V+ OR V– PLANE, OR LEAVE IT FLOATING.  
Figure 1.  
Dual-supply operation: 2.5 V to 18 V  
Single-supply operation: 5 V to 36 V  
Input voltage range includes V−  
The ADA4625-1/ADA4625-2 are unity-gain stable, and there is  
no phase reversal when input range exceeds either supply rail by  
200 mV. The output is capable of driving loads up to 1000 pF  
and/or 600 Ω loads.  
Rail-to-rail output  
High capacitive load drive capability  
Output short-circuit current: 46 mA  
No phase reversal  
The ADA4625-1/ADA4625-2 are specified for operation over  
the extended industrial temperature range of −40°C to +125°C  
and operates from +5 V to +36 V ( 2.5 V to 18 V) with specifi-  
cations at +5 V and 18 V. The devices are available in an 8-lead  
SOIC package with an exposed pad (EPAD).  
Unity-gain stable  
APPLICATIONS  
PLL filter amplifiers  
100  
V
V
= 5V  
= ±18V  
SY  
SY  
Transimpedance amplifiers  
Photodiode sensor interfaces  
Low noise charge amplifiers  
GENERAL DESCRIPTION  
The ADA4625-1/ADA4625-2 build on Analog Devices, Inc.,  
high voltage, single-supply, rail-to-rail output (RRO), precision  
junction field effect transistor (JFET) input op amps, taking that  
product type to a level of speed and low noise that has not been  
made available to the market previously.  
10  
The ADA4625-1/ADA4625-2 provide optimal performance in  
high voltage, high gain, and low noise applications. The input  
common-mode voltage range includes the negative supply, and  
the output swings rail to rail. This enables the user to maximize  
dynamic input range in low voltage, single supply applications  
without the need for a separate negative voltage power supply  
for ground sense.  
1
1
10  
100  
1k  
10k  
100k  
FREQUENCY (Hz)  
Figure 2. Voltage Noise Density vs. Frequency  
Table 1. Related Precision JFET Operational Amplifiers  
Single  
Dual  
Quad  
Not applicable  
AD8510  
AD8610  
ADA4610-1  
ADA4622-1  
ADA4627-1/ADA4637-1 Not applicable  
AD823A  
AD8512  
AD8620  
ADA4610-2  
ADA4622-2  
Not applicable  
AD8513  
Not applicable  
ADA4610-4  
ADA4622-4  
Not applicable  
The combination of wide bandwidth, low noise, and low input  
bias current makes the ADA4625-1/ADA4625-2 especially  
suitable for phase-locked loop (PLL), active filter amplifiers and  
for high tuning voltage (VTUNE), voltage controlled oscillators  
(VCOs) and preamplifiers where low level signals require an  
amplifier that provides both high amplification and wide  
bandwidth.  
Rev. A  
Document Feedback  
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: 781.329.4700 ©2017–2019 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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