AD8328: 5 V Upstream Cable Line Driver
The AD8328 is a low cost amplifier designed for coaxial line driving. The features and specifications make the AD8328 ideally suited for MCNS-DOCSIS and EuroDOCSIS applications. The gain of the ...More
AD8328: 5 V Upstream Cable Line Driver
Product Description
The AD8328 is a low cost amplifier designed for coaxial line driving. The features and specifications make the AD8328 ideally suited for MCNS-DOCSIS and EuroDOCSIS applications. The gain of the AD8328 is digitally controlled. An 8-bit serial word determines the desired output gain over a 59 dB range, resulting in gain changes of 1 dB/LSB.
The AD8328 is packaged in a low cost 20-lead LFCSP and a 20-lead QSOP. The AD8328 operates from a single 5 V supply and has an operational temperature range of -40°C to +85°C.
Patent pending.
Features
- Supports DOCSIS and EuroDOCSIS standards for reverse path transmission systems
- Gain programmable in 1 dB steps over a 59 dB range
- Low distortion at 60 dBmV output:
–57.5 dBc SFDR at 21 MHz
–54 dBc SFDR at 65 MHz
- 5 V supply operation
- Maintains 300 Ω output impedance Tx-enable and Tx-disable condition
- Upper bandwidth: 107 MHz (full gain range)
- Supports SPI interfaces
- Output noise level @ minimum gain 1.2 nV/vHz
Diagrams
- Enlarge
- Other Diagrams
- Symbols and Footprints
Functional Block Diagram for AD8328
5 V Upstream Cable Line Driver
Other Diagrams for AD8328
5 V Upstream Cable Line Driver
20-Lead QSOP Pin Configuration
20-Lead LFCSP Pin Configuration
Functional Block Diagram for AD8328
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| Part# | Gain Control | -3 dB BW (MHz) | Gain Low End (dB) | Gain High End (dB) | Number of Channels | Spectral Noise (nV/rtHz) | Supply Voltage (V) | Supply Current (max) | Gain Accuracy (dB) | 1 dB Comp Point (dBm) | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AD600 | Analog | 35 | 0 | +40 | 2 | 1.4 | ±5 | 14mA | - | - | - | $16.41 |
| AD602 | Analog | 35 | -10 | +30 | 2 | 1.4 | ±5 | 14mA | - | - | - | $13.20 |
| AD603 | Analog | 90 | -11 | +31 | 1 | 1.4 | ±5 | 20mA | ±0.5 | - | 8-Lead DIP, 8-Lead SOIC | $4.35 |
| AD604 | Analog | 40 | 0 | +48 | 2 | 0.8 | ±5 | 31mA | ±0.3 | 15 | 24-Lead SOIC, 24-Lead SSOP | $16.25 |
| AD605 | Analog | 40 | -14 | +34 | 2 | 1.8 | +5 | 23mA | ±0.2 | 15 | 16-Lead SOIC | $9.79 |
| AD8260 | Digital | 180 | -6 | +24 | 1 | 2.4 | +3.3 | 28mA | +0.25 | - | - | $3.79 |
| AD8320 | Digital | 150 | -10 | +26 | 1 | 53 | +12 | 105mA | ±0.2 | 22.5 | 20-Lead SOIC | - |
| AD8321 | Digital | 120 | -27.4 | +26 | 1 | 20 | +9 | 90mA | ±1 | 19.5 | 20-Lead SOIC | $4.35 |
| AD8322 | Digital | 180 | -12.6 | +29.5 | 1 | 64 | +5 | 113mA | ±2 | 19 | 28-Lead TSSOP | $3.15 |
| AD8323 | Digital | 100 | -26 | +27.5 | 1 | - | +5 | - | - | - | 28-Lead TSSOP | $3.30 |
| AD8324 | Digital | 100 | -25.5 | +33.5 | 1 | 157 | +3.3 | 207mA | ±1 | 21 | 20-Lead LFCSP, 20-Lead QSOP | $1.71 |
| AD8325 | Digital | 100 | -29.5 | +30 | 1 | 56 | +5 | 133mA | ±1 | 18.5 | 28-Lead TSSOP | $3.30 |
| AD8326 | Digital | 100 | -26 | +27.5 | 1 | 100 | ±5 | 157mA | ±1 | 26.5 | 28-Lead PSOP, 28-Lead TSSOP | $3.90 |
| AD8327 | Digital | 160 | -18 | +30 | 1 | 64 | +5 | 105mA | ±1 | 18 | 20-Lead TSSOP | $3.75 |
| AD8328 | Digital | 107 | -27.5 | +31.5 | 1 | 135 | - | 120mA | ±1 | 18.4 | 20-Lead LFCSP, 20-Lead QSOP | $1.90 |
| AD8330 | Analog | 150 | 0 | +50 | 1 | 5 | +6 | 20mA | ±0.5 | - | 16-Lead LFCSP, 16-Lead QSOP | $4.39 |
| AD8331 | Analog | 120 | -4.5 | +43 | 1 | 0.74 | +5 | 25mA | +0.5 | 7 | - | $5.39 |
| AD8332 | Analog | 120 | -4.5 | +43.5 | 2 | 0.74 | +5 | 58mA | +0.5 | 7 | 28-Lead TSSOP, 32-Lead CSP | $10.44 |
| AD8334 | Analog | 100 | +4.5 | +43.5 | 4 | 0.74 | +5 | 116mA | +0.5 | 7 | 64-Lead LFCSP | $14.49 |
| AD8335 | Analog | 70 | -10 | +38 | 4 | 1.3 | +5 | 76mA | ±0.2 | 18 | 64-Lead LFCSP | $12.00 |
| AD8336 | Analog | 115 | -14 | +46 | 1 | 3 | ±12 | 25mA | ±0.5 | 11 | 16-Lead LFCSP | $4.59 |
| AD8337 | Analog | 280 | 0 | +24 | 1 | 2.2 | ±5 | 15mA | ±0.25 | - | 8-Lead LFCSP | $2.49 |
| AD8367 | Analog | 500 | -2.5 | +42.5 | 1 | 1.84 | +5.5 | 26mA | ±0.2 | 8.1 | 14-Lead TSSOP | $4.55 |
| AD8368 | Analog | 800 | -12 | +22 | 1 | - | +5 | - | ±0.4 | 13 | 24-Lead LFCSP | $4.55 |
| AD8369 | Digital | 600 | -5 | +40 | 1 | 2 | +5.5 | 37mA | ±0.5 | 0.5 | 16-Lead TSSOP | $4.20 |
| AD8370 | Digital | 700 | +25 | +34 | 1 | 2.1 | +5.5 | 78mA | - | 14 | 16-Lead TSSOP | $4.20 |
| AD8375 | Digital | 690 | -4 | +20 | 1 | - | +5 | 130mA | ±0.2 | 19 | 24-Lead LFCSP | $4.49 |
| AD8376 | Digital | 690 | -4 | +20 | 2 | - | +5 | 260mA | ±0.2 | 19 | 32-Lead CSP | $6.49 |
| ADL5330 | Analog | 3000 | -34 | +22 | 1 | - | +5 | 240mA | - | 1.2 | 24-Lead LFCSP | $4.98 |
| ADL5390 | Analog | 2400 | - | +7 | 1 | - | +5 | 130mA | - | 9.6 | 24-Lead LFCSP | $7.50 |
| ADL5391 | Analog | 2000 | - | +9.5 | 1 | 26.7 | +5 | 135mA | - | 15.1 | 16-Lead LFCSP | $4.89 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
AD8328 Model Options
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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