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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD8260 includes a high current driver, usable as a transmitter, and a low noise digitally programmable variable gain amplifier (DGA), useable as a receiver.
- The receiver section consists of a single-ended input preamplifier, and linear-in-dB, differential-output DGA. The receiver has a small signal –3 dB bandwidth of 230 MHz; the driver small signal bandwidth is 195 MHz. The driver delivers ±300 mA, well suited for driving low impedance loads, even when connected to a 3.3 V supply.
- The AD8260 DGA is ideal for trim applications and has a gain span of 30 dB, in 3 dB steps. Excellent bandwidth uniformity is maintained across the entire frequency range. The low output-referred noise of the DGA is advantageous in driving high speed ADCs. The differential output facilitates the interface to modern low voltage high speed ADCs.
- Single-supply and dual-supply operation makes the part versatile and enables gain control of negative-going pulses, such as those generated by photodiodes or photo-multiplier tubes, as well as processing band-pass signals on a single supply. For maximum dynamic range, it is essential that the part be ac-coupled when operating on a single supply.
- The AD8260 preamplifier (PrA) is configured with external resistors for gains greater than 6 dB and can be inverting or noninverting. The DGA is characterized with a noninverting preamplifier gain of 2×. The attenuator has a range of 30 dB and the output amplifier has a gain of 8× (18.06 dB). The lowest noninverting gain range is −6 dB to +24 dB and shifts up with increased preamplifier gain. The gain is controlled via a parallel port (Pin GNS0 to Pin GNS3) with 10 gain steps of 3 dB per code. The preamplifier and DGA are disabled for any code that is not assigned a gain step.
- The AD8260 can operate with single or dual supplies from 3.3 V to ±5 V. An internal buffer normally provides a split supply reference for single-supply operation; an external reference can also be used when the VMID buffer is shut down.
- The operating temperature range is −40°C to +105°C. The AD8260 is available in a 5 mm × 5 mm, 32-lead LFCSP.
- Applications
- Digital AGC systems
- Tx/Rx signal processing
- Power line transceivers
- ### Features and Benefits
- High current driver
- Differential input—direct drive from DAC
- Preset gain: 1.5×
- −3 dB bandwidth: 195 MHz
- Large output drive: >±300 mA
- VGA/preamplifier
- Low noise
- Voltage noise: 2.4 nV/√Hz
- Current noise: 5 pA/√Hz
- −3 dB bandwidth: 230 MHz
- Gain range: 30 dB in 3 dB steps
- −6 dB to +24 dB (for preamplifier gain of 6 dB)
- Single-ended preamplifier input and differential VGA output
- Supplies: 3.3 V to 10 V (with VMID enabled)
- ±3.3 V to ±5 V (with VMID disabled)
- Power: 93 mW with 3.3 V supplies
- Power-down for VGA, driver amplifier, and system
AD8260 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| Product Lifecycle Status | Active |
| RoHS | RoHS Compliant |
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
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
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