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INA128UA 参数 Datasheet PDF下载

INA128UA图片预览
型号: INA128UA
PDF下载: 下载PDF文件 查看货源
内容描述: 精密低功耗仪表放大器 [Precision, Low Power INSTRUMENTATION AMPLIFIERS]
分类和应用: 仪表放大器光电二极管PC
文件页数/大小: 10 页 / 248 K
品牌: BURR-BROWN [ BURR-BROWN CORPORATION ]
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®
INA1
28
INA1
29
INA1
28
INA1
INA128
INA129
29
Precision, Low Power
INSTRUMENTATION AMPLIFIERS
FEATURES
q
LOW OFFSET VOLTAGE: 50
µ
V max
q
LOW DRIFT: 0.5
µ
V/
°
C max
q
LOW INPUT BIAS CURRENT: 5nA max
q
HIGH CMR: 120dB min
q
INPUTS PROTECTED TO
±
40V
q
WIDE SUPPLY RANGE:
±
2.25 to
±
18V
q
LOW QUIESCENT CURRENT: 700
µ
A
q
8-PIN PLASTIC DIP, SO-8
DESCRIPTION
The INA128 and INA129 are low power, general
purpose instrumentation amplifiers offering excellent
accuracy. Their versatile 3-op amp design and small
size make them ideal for a wide range of applications.
Current-feedback input circuitry provides wide band-
width even at high gain (200kHz at G = 100).
A single external resistor sets any gain from 1 to
10,000. INA128 provides an industry standard gain
equation; INA129’s gain equation is compatible with
the AD620.
The INA128/INA129 is laser trimmed for very low
offset voltage (50µV), drift (0.5µV/°C) and high com-
mon-mode rejection (120dB at G
100). It operates
with power supplies as low as
±2.25V,
and quiescent
current is only 700µA—ideal for battery operated
systems. Internal input protection can withstand up to
±40V
without damage.
The INA128/INA129 is available in 8-pin plastic
DIP, and SO-8 surface-mount packages, specified for
the –40°C to +85°C temperature range. The INA128
is also available in dual configuration, the INA2128.
V+
7
INA128:
G=1+
50kΩ
R
G
APPLICATIONS
q
BRIDGE AMPLIFIER
q
THERMOCOUPLE AMPLIFIER
q
RTD SENSOR AMPLIFIER
q
MEDICAL INSTRUMENTATION
q
DATA ACQUISITION
V
IN
2
INA128, INA129
Over-Voltage
Protection
A
1
40kΩ
25kΩ
(1)
40kΩ
INA129:
G=1+
6
49.4kΩ
R
G
1
R
G
8
25kΩ
(1)
A
2
40kΩ
4
V–
A
3
V
O
5
40kΩ
+
V
IN
3
Over-Voltage
Protection
Ref
NOTE: (1) INA129: 24.7kΩ
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©
1995 Burr-Brown Corporation
PDS-1296C
Printed in U.S.A. October, 1996