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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD8429 is an ultralow noise, instrumentation amplifier designed for measuring extremely small signals over a wide temperature range (−40°C to +125°C).
- The AD8429 excels at measuring tiny signals. It delivers ultralow input noise performance of 1 nV/√Hz. The high CMRR of the AD8429 prevents unwanted signals from corrupting the acqui-sition. The CMRR increases as the gain increases, offering high rejection when it is most needed. The high performance pin configuration of the AD8429 allows it to reliably maintain high CMRR at frequencies well beyond those of typical instrumentation amplifiers.
- The AD8429 reliably amplifies fast changing signals. Its current feedback architecture provides high bandwidth at high gain, for example, 1.2 MHz at G = 100. The design includes circuitry to im-prove settling time after large input voltage transients. The AD8429 was designed for excellent distortion performance, allowing use in demanding applications such as vibration analysis.
- Gain is set from 1 to 10,000 with a single resistor. A reference pin allows the user to offset the output voltage. This feature can be useful to shift the output level when interfacing to a single supply signal chain. The AD8429 performance is specified over the extended industrial temperature range of −40°C to +125°C. It is available in an 8-lead plastic SOIC package.
- **APPLICATIONS**
- Medical instrumentation
- Precision data acquisition
- Microphone preamplification
- Vibration analysis
- ### Features and Benefits
- Low noise
- 1 nV/√Hz input noise
- 45 nV/√Hz output noise
- High accuracy dc performance (AD8429BRZ)
- 90 dB CMRR minimum (G = 1)
- 50 μV maximum input offset voltage
- 0.02% maximum gain accuracy (G = 1)
- Excellent ac specifications
- 80 dB CMRR to 5 kHz (G = 1)
- 15 MHz bandwidth (G = 1)
- 1.2 MHz bandwidth (G = 100)
- 22 V/μs slew rate
- THD: −130 dBc (1 kHz, G = 1)
- Versatile
- ±4 V to ±18 V dual supply
- Gain set with a single resistor
- (G = 1 to 10,000)
- Temperature range for specified performance
- −40°C to +125°C
AD8429BRZ Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | SOIC-8 |
| Supply Current | 6.7 mA |
| Number of Circuits | 1 Circuit |
| Number of Channels | 1 Channel |
| Number of Positions | 8 Position |
| Common Mode Rejection Ratio | 90 dB |
| Bandwidth | 15 MHz |
| Gain Bandwidth Product | 15 MHz |
| Input Offset Voltage | 50 µV |
| Input Bias Current | 150 nA |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| 3dB Bandwidth | 15 MHz |
| Gain Bandwidth | 80 dB |
| Minimum CMRR Range | 140 dB |
| Supply Voltage (Max) | 30V ~ 50V |
| Show | |
| Size-Length | 5 mm |
| Size-Width | 4 mm |
| Size-Height | 1.5 mm |
| Operating Temperature | -40℃ ~ 125℃ |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | RoHS Compliant |
| Lead-Free Status | Contains Lead |
| REACH SVHC Compliance Edition | 2015/12/17 |
Order guide
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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
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