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Low-Power, Single Supply, CMOS, Instrumentation Amplifier 8-VSSOP -55 to 125
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
INA331IDGKR by Texas Instruments is an Instrumentation Amplifier.
Instrumentation Amplifiers are under the broader part category of Amplifier Circuits.
Amplifier circuits use external power to increase the amplitude of an input signal. They can be used to perform linear amplifications or logarithmic functions. Read more about Amplifier Circuits on our Amplifier Circuits part category page.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
296-46101-1-ND
|
DigiKey | IC INST AMP 1 CIRCUIT 8VSSOP Min Qty: 1 Lead time: 12 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) |
20591 In Stock |
|
$1.5183 / $2.9300 | Buy Now |
DISTI #
595-INA331IDGKR
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Mouser Electronics | Instrumentation Amplifiers Lo-Pwr Single Sply C MOS A 595-INA331IDGKT RoHS: Compliant | 2053 |
|
$1.4600 / $2.9300 | Buy Now |
DISTI #
J56:1989_00133584
|
Arrow Electronics | INST Amp Single R-R O/P 5.5V 8-Pin VSSOP T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 12 Weeks | Europe - 5000 |
|
$1.3100 | Buy Now |
|
Bristol Electronics | Min Qty: 3 | 54 |
|
$1.2320 / $2.4640 | Buy Now |
|
Quest Components | 43 |
|
$1.6500 / $3.3000 | Buy Now | |
DISTI #
INA331IDGKR
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TME | IC: instrumentation amplifier, 2MHz, Ch: 1, VSSOP8, 1.7mV, IB: 10pA Min Qty: 1 | 0 |
|
$1.8600 / $3.1500 | RFQ |
|
LCSC | 0.5pA 250uV 2MHz Single channel MSOP-8 Instrumentation Amplifiers ROHS | 18 |
|
$1.8399 / $1.9480 | Buy Now |
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INA331IDGKR
Texas Instruments
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Datasheet
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INA331IDGKR
Texas Instruments
Low-Power, Single Supply, CMOS, Instrumentation Amplifier 8-VSSOP -55 to 125
|
Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | MSOP | |
Package Description | VSSOP-8 | |
Pin Count | 8 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.33.00.01 | |
Samacsys Manufacturer | Texas Instruments | |
Amplifier Type | INSTRUMENTATION AMPLIFIER | |
Average Bias Current-Max (IIB) | 0.00001 µA | |
Bandwidth (3dB)-Nom | 2 MHz | |
Bias Current-Max (IIB) @25C | 0.00001 µA | |
Common-mode Reject Ratio-Min | 90 dB | |
Input Offset Current-Max (IIO) | 0.00001 µA | |
Input Offset Voltage-Max | 500 µV | |
JESD-30 Code | S-PDSO-G8 | |
JESD-609 Code | e4 | |
Length | 3 mm | |
Moisture Sensitivity Level | 2 | |
Non-linearity-Max | 0.01% | |
Number of Functions | 1 | |
Number of Terminals | 8 | |
Operating Temperature-Max | 125 °C | |
Operating Temperature-Min | -55 °C | |
Package Body Material | PLASTIC/EPOXY | |
Package Code | TSSOP | |
Package Equivalence Code | TSSOP8,.19 | |
Package Shape | SQUARE | |
Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | |
Packing Method | TR | |
Peak Reflow Temperature (Cel) | 260 | |
Qualification Status | Not Qualified | |
Seated Height-Max | 1.1 mm | |
Slew Rate-Nom | 5 V/us | |
Supply Current-Max | 0.6 mA | |
Supply Voltage Limit-Max | 7.5 V | |
Supply Voltage-Nom (Vsup) | 5 V | |
Surface Mount | YES | |
Technology | CMOS | |
Temperature Grade | MILITARY | |
Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) | |
Terminal Form | GULL WING | |
Terminal Pitch | 0.65 mm | |
Terminal Position | DUAL | |
Time@Peak Reflow Temperature-Max (s) | 30 | |
Voltage Gain-Max | 1000 | |
Voltage Gain-Min | 5 | |
Voltage Gain-Nom | 25 | |
Width | 3 mm |
This table gives cross-reference parts and alternative options found for INA331IDGKR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of INA331IDGKR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
Part Number | Manufacturer | Composite Price | Description | Compare |
---|---|---|---|---|
INA331IDGKTG4 | Texas Instruments | Check for Price | Low-Power, Single Supply, CMOS, Instrumentation Amplifier 8-VSSOP -55 to 125 | INA331IDGKR vs INA331IDGKTG4 |
INA331IDGKRG4 | Texas Instruments | Check for Price | Low-Power, Single Supply, CMOS, Instrumentation Amplifier 8-VSSOP -55 to 125 | INA331IDGKR vs INA331IDGKRG4 |
The INA331IDGKR can handle input voltages up to ±650mV, but it's recommended to keep the input voltage within ±500mV for optimal performance.
The gain resistor (Rg) should be chosen based on the desired gain and the input voltage range. A higher gain resistor value results in higher gain, but also increases noise and offset voltage. A good starting point is to use the recommended values in the datasheet, and then adjust based on your specific application.
The REF pin is a reference voltage input that allows you to set the output voltage of the INA331IDGKR to a specific level. This can be useful for level-shifting or creating a specific output voltage range. You can connect the REF pin to a voltage source or a voltage divider to set the desired reference voltage.
To minimize noise and interference, use proper PCB layout techniques, such as separating analog and digital grounds, using a solid ground plane, and keeping sensitive analog signals away from noisy digital signals. Additionally, use shielding, filtering, and decoupling capacitors as needed to reduce electromagnetic interference (EMI) and radio-frequency interference (RFI).
The INA331IDGKR can provide up to 10mA of output current, but it's recommended to keep the output current below 5mA for optimal performance and to prevent overheating.