Information

24 | Signal Chain Guide 2013 Texas Instruments
Amplifiers and Comparators
Instrumentation Amplifiers
Get more information: www.ti.com/product/INA826
Low Noise Instrumentation Amplifiers for Industrial Applications
INA826
The INA826 36 V instrumentation amplifier enables accurate sensor measurement in
theindustrialenvironmentbycombining200µVoffsetvoltageandinputcommonmode
rangebeyondthepowersupplyrails.Operatingfrom2.7Vto36Von200µAoperat-
ing current, the INA826 makes it easy to achieve precision measurements in single and
bipolar supply applications.
INA826 functional block diagram
Key Features
• Lowoffsetvoltage:200µV
• Robustinputarchitecture:
Extended input voltage range: V
cc
- 0.8 V
±40 V input protection
EMI hardened
• ExcellentACperformance
CMRR (G = 1): 90 dB min
Input noise: 16 nV/
√
—
Hz
• Industrialsupply:
+2.7 to +36 V, ±1.35 V to ±18 V
Low power: 200 μA
Rail-to-rail output
−40 to +125°C
• 8-MSOP,8-DFN,and8-SOIC
Applications
• Industrialprocesscontrols
• Circuitbreakers
• Medicalinstrumentation
• Portabledataacquisition
300 Ω
+3 V
150 Ω
R
1
(1)
3 V
R
G
V
O
REF
INA826
Instrumentation Amplifiers
Device Description Gain
Non
Linearity
(%)
(max)
Input
Bias
Current
(nA)
(max)
Offset
at
G = 100
(µV)
(max)
Offset
Drift
(µV/°C)
(max)
CMRR
at
G = 100
(dB)
(min)
BW
at
G = 100
(kHz)
(min)
Noise
1 kHz
(nV/√Hz)
(typ)
Power
Supply
(V)
I
Q
Per
Amp
(mA)
(max)
HiRel
Avail. Package Price*
Single Supply: Vsmax < = 5.5 V
INA333 Zero Drift, Low Power,
Precision
1 to 10000 0.001 0.2 25 0.1 100 3.5 50 1.8 to 5.5 0.075 Y MSOP-8,
DFN-8
1.80
INA337 RRIO, Auto-Zero, Low Drift 0.1 to 10000 0.01 2 100 0.4 106 1 33 2.7 to 5.5 3.4 N MSOP-8 1.95
INA338 RRIO, Auto-Zero, Shutdown 0.1 to 10000 0.01 2 100 0.4 106 1 33 2.7 to 5.5 3.4 N MSOP-10 2.80
INA326 CM >Supply, Wide Temp 0.1 to 10000 0.01 2 100 0.4 100 1 33 2.7 to 5.5 3.4 N MSOP-8 1.95
INA327 RRIO, Auto-Zero, Low Drift 0.1 to 10000 0.01 2 100 0.4 100 1 33 2.7 to 5.5 3.4 N MSOP-10 2.45
INA155 CM >Supply, SHDN, Wide
Temp
10, 50 0.015 0.01 1000 5
1
86 110 40 2.7 to 5.5 2.1 N SO-8,
MSOP-8
1.10
INA2321 RRIO, Auto-Zero, CM >
Supply, Low Drift
5 to 1000 0.01 0.01 500 7
1
90 25 100 2.7 to 5.5 0.06 N TSSOP-14 1.75
INA321 RRIO, Auto-Zero, SHDN 5 to 1000 0.01 0.01 500 7
1
90 25 100 2.7 to 5.5 0.06 N MSOP-8 1.10
INA331 Low-Power, Single-Supply,
CMOS
5 to 1000 0.015 0.010 500 5
1
90 750 46 2.7 to 5.5 0.49 N MSOP-8 0.80
INA2331 CM >Supply, Low Drift 5 to 1000 0.015 0.010 1000 5
1
80 750 46 2.7 to 5.5 0.49 N TSSOP-14 1.20
INA156
Zero Drift, Low Power, Precision 10, 50 0.015 0.010 8000 5
1
74 50 40 2.7 to 5.5 2.5 N MSOP-8 1.20
INA2322 Low Offset, RRO, Wide Temp,
SR = 6.5 V/µs
5 to 1000 0.015 0.01 10000 7
1
60 25 100 2.7 to 5.5 0.06 N TSSOP-14 0.95
INA2332 RRO, Wide BW, SHDN, Wide 5 to 1000 0.01 0.01 8,000 5
1
60 500 46 2.7 to 5.5 2.7 to
5.5
N TSSOP-14 0.95
*Suggested resale price in U.S. dollars in quantities of 1,000.
1
Typical Value Only See www.ti.com/hirel for HiRel options.