INA326：Precision, Low Drift, CMOS Instrumentation Amplifier
Recommended alternative parts
- INA327 -
?The INA327 has shutdown and package MSOP-10
- INA321 -
?500?V VOS, 0.5pA IB, 94dB CMRR, 60?A IQ, rail-to-rail output
- INA337 -
?Precision, 0.4?V/°C drift, specified –40°C to +125°C
- INA122 -
?250?V VOS, 10nA IB, 85?A IQ, rail-to-rail output, 3?V/°C drift
The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.
Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.
The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.
Features
- PRECISION
LOW OFFSET: 100 ?V (max)
LOW OFFSET DRIFT: 0.4 ?V/°C (max)
EXCELLENT LONG-TERM STABILITY
VERY-LOW 1/f NOISE - TRUE RAIL-TO-RAIL I/O
INPUT COMMON-MODE RANGE:
20mV Below Negative Rail to 100mV Above Positive Rail
WIDE OUTPUT SWING: Within 10mV of Rails
SUPPLY RANGE: Single +2.7V to +5.5V - SMALL SIZE
microPACKAGE: MSOP-8, MSOP-10 - LOW COST
- APPLICATIONS
- LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
- WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
- HIGH-RESOLUTION TEST SYSTEMS
- WEIGH SCALES
- MULTI-CHANNEL DATA ACQUISITION SYSTEMS
- MEDICAL INSTRUMENTATION
- GENERAL-PURPOSE
- LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
- WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
- HIGH-RESOLUTION TEST SYSTEMS
- WEIGH SCALES
- MULTI-CHANNEL DATA ACQUISITION SYSTEMS
- MEDICAL INSTRUMENTATION
- GENERAL-PURPOSE
Parametrics
| key | INA326 |
|---|
| Number of Channels
(#) | 1 |
| Vs
(Min)
(V) | 2.7 |
| Vs
(Max)
(V) | 5.5 |
| CMRR
(Min)
(dB) | 100 |
| Input Offset (+/-)
(Max)
(uV) | 100 |
| Input Offset Drift (+/-)
(Max)
(uV/C) | 0.4 |
| Input Bias Current (+/-)
(Max)
(nA) | 2 |
| Noise at 1kHz
(Typ)
(nV/rt(Hz)) | 33 |
| Iq
(Typ)
(mA) | 2.4 |
| Bandwidth at Min Gain
(Typ)
(MHz) | 0.001 |
| Gain
(Min)
(V/V) | 0.1 |
| Gain
(Max)
(V/V) | 10000 |
| Gain Error (+/-)
(Max)
(%) | 0.2 |
| Rating | Catalog |
| Operating Temperature Range
(C) | -40 to 85 |
| Package Group | VSSOP |
| Approx. Price (US$) | 1.95 | 1ku |
| Package Size: mm2:W x L (PKG) | 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
| Noise at 0.1 Hz - 10 Hz
(Typ)
(uVpp) | 0.8 |
| Gain Non-Linearity (+/-)
(Max)
(%) | 0.01 |
Datasheet?(1)
Application notes?(4)
Selection & solution guides?(2)
Models?(5)
Development tools?(2)
Ordering Information
| Part # | Preproduction / Production Material | Status | Temp(oC) | Price | QTY | Package | Pins | Device Marking | Package QTY | Carrier |
|---|
| INA326EA/250 | Production | ACTIVE | -40 to 85 | 2.20 | 1ku | VSSOP?(DGK) | B26 | 250 | SMALL T&R |
| INA326EA/250G4 | Production | ACTIVE | -40 to 85 | 2.20 | 1ku | VSSOP?(DGK) | B26 | 250 | SMALL T&R |
| INA326EA/2K5 | Production | ACTIVE | -40 to 85 | 1.95 | 1ku | VSSOP?(DGK) | B26 | 2500 | LARGE T&R |
| INA326EA/2K5G4 | Production | ACTIVE | -40 to 85 | 1.95 | 1ku | VSSOP?(DGK) | B26 | 2500 | LARGE T&R |
