Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Supply Current | 200 µA |
| Supply | 3 V to 36 V or ±1.5 V to ±18 V |
| Gain Range | 1 V/V to 1000 V/V |
| Offset Voltage | 150 µV maximum |
| Input Noise | 18 nV/√Hz at high gain stated feature |
| CMRR | 104 dB minimum at G=10; 100 dB minimum at 5 kHz |
| Output / Protection | Rail-to-rail output; inputs protected to ±40 V |
| Exact Package / Packing | SOIC (D), 8 pins; 2500-piece large tape and reel |
Product Overview
INA826AIDR is a wide-supply instrumentation amplifier designed to bridge the gap between micropower parts and higher-current low-noise precision devices. It consumes about 200 µA, runs from a 3 V single supply up to 36 V, and provides a rail-to-rail output.
Its input common-mode range includes the negative rail, which is useful in low-side bridge and single-supply sensor interfaces. The output can also swing close to the rails, but the input/common-mode, gain and output conditions must be checked together to avoid internal stage saturation.
Gain from 1 to 1000 is set with one external resistor. At high gain, low RG values make lead and PCB resistance significant; TI specifically cautions that wiring resistance and parasitic capacitance around RG can affect gain and stability.
For related devices, see HKEQGOO’s Instrumentation Amplifiers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | INA826AIDR |
| Supply Current | 200 µA |
| Supply | 3 V to 36 V or ±1.5 V to ±18 V |
| Gain Range | 1 V/V to 1000 V/V |
| Offset Voltage | 150 µV maximum |
| Input Noise | 18 nV/√Hz at high gain stated feature |
| CMRR | 104 dB minimum at G=10; 100 dB minimum at 5 kHz |
| Output / Protection | Rail-to-rail output; inputs protected to ±40 V |
| Exact Package / Packing | SOIC (D), 8 pins; 2500-piece large tape and reel |
| Manufacturer Status | Active / Production |
| Part Marking | INA826 |
Functional Highlights
200 µA and 36 V operation cover portable and industrial rails
INA826 can use much less current than INA821/INA828 while still supporting high-voltage industrial supplies and ±40 V protected inputs.
Rail-to-rail output improves low-voltage ADC use
On a 3 V single supply, output swing near the rails can recover more ADC range than older wide-supply instrumentation amplifiers, provided common-mode constraints are respected.
Design Considerations
- Check common-mode and output swing simultaneously at the selected gain and supply.
- At high gain, include RG lead/trace resistance and parasitics in accuracy/stability analysis.
- Use input protection resistors where the source can drive large current during overvoltage.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists INA826AIDR as Active / Production; SOIC (D), 8 pins; 2500-piece large tape and reel; Level-2-260C-1 YEAR; −40°C to +125°C; marking INA826.
Related Engineering Resources
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Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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