| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LMH6643QMMX/NOPB | Texas Instruments | $0.9554 | Operational Amplifier, 2 Func, 5000uV Offset-Max, 46MHz Band Width, BIPolar, PDSO8 | INA821IDR vs LMH6643QMMX/NOPB |
| INA821ID | Texas Instruments | $4.6554 | Instrumentation Amplifier, 1 Func, 35uV Offset-Max, 4.7MHz Band Width, PDSO8 | INA821IDR vs INA821ID |
| LMH6643MM/NOPB | National Semiconductor Corporation | Check for Price | Operational Amplifier, 2 Func, 7000uV Offset-Max, BIPolar, PDSO8 | INA821IDR vs LMH6643MM/NOPB |
Part Details for INA821IDR by Texas Instruments
Results Overview of INA821IDR by Texas Instruments
- Distributor Offerings: (6 listings)
- Number of FFF Equivalents: (3 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (1 option)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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.
Applications
Education and Research
Consumer Electronics
Internet of Things (IoT)
Audio and Video Systems
Computing and Data Storage
Aerospace and Defense
Healthcare
Telecommunications
Automotive
INA821IDR Information
INA821IDR 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.
Available Datasheets
| Part # | Manufacturer | Description | Datasheet |
|---|---|---|---|
| INA821IDR | Texas Instruments | 35-µV offset, 7-nV/√Hz noise, low-power, precision instrumentation amplifier 8-SOIC -40 to 125 | |
| INA821IDRGR | Texas Instruments | High bandwidth (4.7MHz), low noise (7nV/√Hz), precision (35µV), low-power, instrumentation amp 8-SON -40 to 125 | |
| INA821IDRGT | Texas Instruments | High bandwidth (4.7MHz), low noise (7nV/√Hz), precision (35µV), low-power, instrumentation amp 8-SON -40 to 125 |
Price & Stock for INA821IDR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
|
DISTI #
296-INA821IDRCT-ND
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DigiKey | IC OP AMP 1CH 8-SOIC Min Qty: 1 Container: Cut Tape |
0 Cut Tape |
|
$4.1310 / $6.6100 | Buy Now |
|
DISTI #
296-INA821IDRTR-ND
|
DigiKey | IC OP AMP 1CH 8-SOIC Min Qty: 2500 Container: Tape & Reel |
0 Tape & Reel |
|
$3.7498 | Buy Now |
|
DISTI #
296-INA821IDRDKR-ND
|
DigiKey | IC OP AMP 1CH 8-SOIC Min Qty: 1 Container: Digi-Reel |
0 Digi-Reel® |
|
$4.1310 / $6.6100 | Buy Now |
|
DISTI #
595-INA821IDR
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Mouser Electronics | Instrumentation Amplifiers High bandwidth (4.7M Hz) low noise (7nV/ A 595-INA821ID RoHS: Compliant | 0 |
|
$3.7400 / $6.5300 | Order Now |
|
DISTI #
INA821IDR
|
TME | IC: instrumentation amplifier, Ch: 1, ±2.25÷18VDC,4.5÷36VDC, SO8 Min Qty: 2500 | 0 |
|
$4.6200 | RFQ |
|
DISTI #
INA821IDR-U1
|
Maritex | Instrumentation Amplifiers, INA821IDR, TEXAS INSTRUMENTS, 8, 1 Min Qty: 1 Package Multiple: 1 | 261 |
|
$2.8570 / $6.0960 | Buy Now |
US Tariff Estimator: INA821IDR by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
INA821IDR CAD Models
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INA821IDR Part Data Attributes
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INA821IDR
Texas Instruments
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Datasheet
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INA821IDR
Texas Instruments
Instrumentation Amplifier, 1 Func, 35uV Offset-Max, 4.7MHz Band Width, PDSO8
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.33.00.01 | |
| Amplifier Type | Instrumentation Amplifier | |
| Average Bias Current-Max (IIB) | 0.002 µA | |
| Bandwidth (3dB)-Nom | 4.7 Mhz | |
| Bias Current-Max (IIB) @25C | 0.0005 µA | |
| Common-mode Reject Ratio-Min | 136 Db | |
| Common-mode Reject Ratio-Nom | 105 Db | |
| Input Offset Current-Max (IIO) | 0.002 µA | |
| Input Offset Voltage-Max | 35 µV | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e4 | |
| Length | 4.905 Mm | |
| Moisture Sensitivity Level | 2 | |
| Neg Supply Voltage Limit-Max | -20 V | |
| Neg Supply Voltage-Nom (Vsup) | -15 V | |
| Non-linearity-Max | 0.0015% | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -40 °C | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Packing Method | Tr, 13 Inch | |
| Peak Reflow Temperature (Cel) | 260 | |
| Seated Height-Max | 1.75 Mm | |
| Slew Rate-Nom | 2 V/Us | |
| Supply Current-Max | 0.87 Ma | |
| Supply Voltage Limit-Max | 20 V | |
| Supply Voltage-Nom (Vsup) | 15 V | |
| Surface Mount | Yes | |
| Temperature Grade | Automotive | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 1.27 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Unity Gain BW-Nom | 4700 | |
| Voltage Gain-Max | 10000 | |
| Voltage Gain-Min | 1 | |
| Voltage Gain-Nom | 10 | |
| Width | 3.895 Mm |
Alternate Parts for INA821IDR
This table gives cross-reference parts and alternative options found for INA821IDR. 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 INA821IDR, 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.
INA821IDR Frequently Asked Questions (FAQ)
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The maximum voltage that can be applied to the input pins is ±40V, but it's recommended to keep it within ±20V to ensure accurate measurements.
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The gain of the INA821IDR is fixed at 5V/V. You can calculate the output voltage using the formula: Vout = (Vin x Gain) + Vref, where Vin is the input voltage and Vref is the reference voltage.
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The REF pin is used to set the reference voltage for the INA821IDR. You can connect it to a voltage reference or a voltage divider to set the desired reference voltage.
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The INA821IDR has a bandwidth of 350 kHz, making it suitable for low-frequency to medium-frequency applications. For high-frequency applications, you may need to consider a different amplifier or add external filtering.
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To reduce noise and interference, use proper PCB layout techniques, add bypass capacitors to the power supply, and consider adding external filtering or shielding to the circuit.