参数资料
| 型号： | AD625KNZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC AMP INST 25MHZ LN 16DIP |
| 标准包装： | 25 |
| 放大器类型： | 仪表 |
| 电路数： | 1 |
| 转换速率： | 5 V/µs |
| 增益带宽积： | 25MHz |
| -3db带宽： | 650kHz |
| 电流 - 输入偏压： | 20nA |
| 电压 - 输入偏移： | 25µV |
| 电流 - 电源： | 3.5mA |
| 电压 - 电源，单路/双路(±)： | ±6 V ~ 18 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 770 (CN2011-ZH PDF) |
FUNCTIONAL BLOCK DIAGRAM
+
–
+
–
+
–
+
–
+
–
50
10k
VB
–INPUT
–GAIN
SENSE
+INPUT
–GAIN
DRIVE
+GAIN
SENSE
+GAIN
DRIVE
SENSE
OUTPUT
REFERENCE
AD625
REV. D
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Programmable Gain
Instrumentation Amplifier
AD625
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
FEATURES
User Programmed Gains of 1 to 10,000
Low Gain Error: 0.02% Max
Low Gain TC: 5 ppm/ C Max
Low Nonlinearity: 0.001% Max
Low Offset Voltage: 25
V
Low Noise 4 nV/
√Hz (at 1 kHz) RTI
Gain Bandwidth Product: 25 MHz
16-Lead Ceramic or Plastic DIP Package,
20-Terminal LCC Package
Standard Military Drawing Available
MlL-Standard Parts Available
Low Cost
PRODUCT DESCRIPTION
The AD625 is a precision instrumentation amplifier specifically
designed to fulfill two major areas of application: 1) Circuits re-
quiring nonstandard gains (i.e., gains not easily achievable with
devices such as the AD524 and AD624). 2) Circuits requiring a
low cost, precision software programmable gain amplifier.
For low noise, high CMRR, and low drift the AD625JN is the
most cost effective instrumentation amplifier solution available.
An additional three resistors allow the user to set any gain from
1 to 10,000. The error contribution of the AD625JN is less than
0.05% gain error and under 5 ppm/
°C gain TC; performance
limitations are primarily determined by the external resistors.
Common-mode rejection is independent of the feedback resistor
matching.
A software programmable gain amplifier (SPGA) can be config-
ured with the addition of a CMOS multiplexer (or other switch
network), and a suitable resistor network. Because the ON
resistance of the switches is removed from the signal path, an
AD625 based SPGA will deliver 12-bit precision, and can be
programmed for any set of gains between 1 and 10,000, with
completely user selected gain steps.
For the highest precision the AD625C offers an input offset
voltage drift of less than 0.25
V/°C, output offset drift below
15
V/°C, and a maximum nonlinearity of 0.001% at G = 1. All
grades exhibit excellent ac performance; a 25 MHz gain band-
width product, 5 V/
s slew rate and 15 s settling time.
The AD625 is available in three accuracy grades (A, B, C) for
industrial (–40
°C to +85°C) temperature range, two grades (J,
K) for commercial (0
°C to +70°C) temperature range, and one
(S) grade rated over the extended (–55
°C to +125°C) tempera-
ture range.
PRODUCT HIGHLIGHTS
1. The AD625 affords up to 16-bit precision for user selected
fixed gains from 1 to 10,000. Any gain in this range can be
programmed by 3 external resistors.
2. A 12-bit software programmable gain amplifier can be config-
ured using the AD625, a CMOS multiplexer and a resistor
network. Unlike previous instrumentation amplifier designs,
the ON resistance of a CMOS switch does not affect the gain
accuracy.
3. The gain accuracy and gain temperature coefficient of the
amplifier circuit are primarily dependent on the user selected
external resistors.
4. The AD625 provides totally independent input and output
offset nulling terminals for high precision applications. This
minimizes the effects of offset voltage in gain-ranging
applications.
5. The proprietary design of the AD625 provides input voltage
noise of 4 nV/
√Hz at 1 kHz.
6. External resistor matching is not required to maintain high
common-mode rejection.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD625KNZ | 制造商:Analog Devices 功能描述:IC AMP GAIN |
| AD625S | 制造商:AD 制造商全称:Analog Devices 功能描述:Programmable Gain Instrumentation Amplifier |
| AD625SCHIPS | 制造商:AD 制造商全称:Analog Devices 功能描述:Programmable Gain Instrumentation Amplifier |
| AD625SD | 功能描述:IC AMP INST 25MHZ LN 16CDIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:TS1854A View All Specifications 标准包装:50 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.25 V/µs 增益带宽积:630kHz -3db带宽:- 电流 - 输入偏压:16nA 电压 - 输入偏移:1000µV 电流 - 电源:162µA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):1.8 V ~ 6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 |
| AD625SD/883 | 制造商:Analog Devices 功能描述: |
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