参数资料
型号: AD8426BCPZ-R7
厂商: Analog Devices Inc
文件页数: 1/28页
文件大小: 0K
描述: IC AMP INSTR RR 1.5MHZ 16LFCSP
标准包装: 1,500
放大器类型: 仪表
电路数: 2
输出类型: 满摆幅
转换速率: 0.6 V/µs
-3db带宽: 1MHz
电流 - 输入偏压: 20nA
电压 - 输入偏移: 100µV
电流 - 电源: 350µA
电流 - 输出 / 通道: 13mA
电压 - 电源,单路/双路(±): 2.2 V ~ 36 V,±1.35 V ~ 18 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-VQFN,CSP
供应商设备封装: 16-LFCSP(4x4)
包装: 带卷 (TR)
Wide Supply Range, Rail-to-Rail
Output Instrumentation Amplifier
Rev. 0
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rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2011 Analog Devices, Inc. All rights reserved.
FEATURES
2 channels in a small, 4 mm × 4 mm LFCSP
LFCSP package has no metal pad
More routing room
No current leakage to pad
Gain set with 1 external resistor
Gain range: 1 to 1000
Input voltage goes below ground
Inputs protected beyond supplies
Very wide power supply range
Single supply: 2.2 V to 36 V
Dual supply: ±1.35 V to ±18 V
Bandwidth (G = 1): 1 MHz
CMRR (G = 1): 80 dB minimum
Input noise: 24 nV/√Hz
Typical supply current (per amplifier): 350 μA
Specified temperature range: 40°C to +125°C
APPLICATIONS
Industrial process controls
Bridge amplifiers
Medical instrumentation
Portable data acquisition
Multichannel systems
CONNECTION DIAGRAM
1
2
3
4
12
11
10
9
5
678
13
14
15
16
–IN1
+IN1
RG1
AD8426
+V
S
OU
T1
OU
T2
–V
S
–IN2
+IN2
RG2
09
49
0-
0
01
+V
S
–V
S
RE
F
1
RE
F
2
Figure 1.
Table 1. Instrumentation Amplifiers by Category1
General-
Purpose
Zero
Drift
Military
Grade
Low
Power
High Speed
PGA
1 See www.analog.com for the latest instrumentation amplifiers.
GENERAL DESCRIPTION
The AD8426 is a dual-channel, low cost, wide supply range
instrumentation amplifier that requires only one external
resistor to set any gain from 1 to 1000.
The AD8426 is designed to work with a variety of signal
voltages. A wide input range and rail-to-rail output allow the
signal to make full use of the supply rails. Because the input
range can also go below the negative supply, small signals near
ground can be amplified without requiring dual supplies. The
AD8426 operates on supplies ranging from ±1.35 V to ±18 V
for dual supplies and 2.2 V to 36 V for a single supply.
The robust AD8426 inputs are designed to connect to real-
world sensors. In addition to its wide operating range, the
AD8426 can handle voltages beyond the rails. For example,
with a ±5 V supply, the part is guaranteed to withstand ±35 V
at the input with no damage. Minimum and maximum input
bias currents are specified to facilitate open-wire detection.
The AD8426 is designed to make PCB routing easy and efficient.
The two amplifiers are arranged in a logical way so that typical
application circuits have short routes and few vias. Unlike most
chip scale packages, the AD8426 does not have an exposed metal
pad on the bottom of the part, which frees additional space for
routing and vias. The AD8426 offers two in-amps in the equivalent
board space of a typical MSOP package.
The AD8426 is ideal for multichannel, space-constrained industrial
applications. Unlike other low cost, low power instrumentation
amplifiers, the AD8426 is designed with a minimum gain of 1 and
can easily handle ±10 V signals. With its space-saving LFCSP
package and 125°C temperature rating, the AD8426 thrives in
tightly packed, zero airflow designs.
The AD8226 is the single-channel version of the AD8426.
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