Key facts
- Brand
- Analog Devices
- Model
- AD8327
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD8327 Datasheet
The AD8327 is a digitally controlled variable‑gain amplifier optimized for coaxial line‑driving applications such as cable modems that meet the DOCSIS upstream standard. It provides an 8‑bit gain word for a 48.16 dB range, low distortion up to 60 dBmV output, and maintains a constant 75 Ω output impedance during transmit enable and disable modes.
The device operates from a single 5 V supply, supports SPI programming, and is packaged in a 20‑lead TSSOP. It is intended for use as the upstream power amplifier in DOCSIS‑certified cable modems and set‑top boxes, with features such as sleep mode (5 mA quiescent current) and wide temperature range (‑40 °C to +85 °C).
Analog Devices AD8327 specifications
| Gain Range | 48.16 dB |
|---|---|
| Gain Step Size | 6.02 dB per major carry |
| Bandwidth (-3 dB) | 160 MHz |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Quiescent Current (Sleep Mode) | 5 mA |
| Operating Temperature | ‑40 °C to +85 °C |
| Input Impedance (Single‑Ended) | 800 Ω |
Source: Analog Devices AD8327 Datasheet
All Analog Devices AD8327 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the gain range of the AD8327?
The AD8327 provides a programmable gain range of about 48.16 dB.
What supply voltage does the AD8327 require?
It operates from a 5 V supply with an acceptable range of 4.75 V to 5.25 V.