AD8326 |
RFQ for AD8326 Required Field |
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| Technical/Catalog Information | AD8326ARE |
| Vendor | Analog Devices Inc |
| Category | Integrated Circuits (ICs) |
| Mounting Type | Surface Mount |
| Package / Case | 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP |
| Type | Line Driver, Transmitter |
| Packaging | Tube |
| Applications | CATV |
| RoHS Status | RoHS Non-Compliant |
| Other Names | AD8326ARE AD8326ARE |
| Product | Manufacturers | Pack | D/C |
| AD8326 | Analog Devices | new | - |
The AD8326 is a high-output power, digitally controlled, vari- able gain amplifier optimized for coaxial line driving applications such as data and telephony cable modems that are designed to the MCNS-DOCSIS upstream standard. An 8-bit serial word determines the desired output gain over a 53.5 dB range result- ing in gain changes of 0.75 dB/LSB. The AD8326 is offered in two models, each optimized to support the desired output power and resulting performance.
The AD8326 comprises a digitally controlled variable attenuator of 0 dB to 54 dB, that is preceded by a low noise, fixed-gain buffer and is followed by a low distortion high-power amplifier. The AD8326 accepts a differential or single-ended input signal. The output is designed to drive a 75 Ω load, such as coaxial cable, although the AD8326 is capable of driving other loads.
When driving 67 dBm into a 75 Ω load, the AD8326ARP provides a worst harmonic of only 59 dBc at 21 MHz and 57 dBc at 42 MHz. W hen driving 65 dBmV into a 75 Ω load, the AD8326ARE provides a worst harmonic of only 62 dBc at 21 MHz and 60 dBc at 42 MHz.
Features |
| Supports DOCSIS Standard for Reverse PathTransmissionGain Programmable in 0.75 dB Steps over a 53.5 dB Low Distortion at 65 dBmV Output62 dBc SFDR at 21 MHz58 dBc SFDR at 65 MHz1 dB Compression of 25 dBm at 10 MHzOutput Noise Level45 dBmV in 160 kHzMaintains 75 Output Impedance Power-Up and Power-Down ConditionUpper Bandwidth: 100 MHz (Full Gain Range)Single or Dual Supply OperationAPPLICATIONSGain-Programmable Line DriverCATV Telephony ModemsCATV Terminal DevicesGeneral-Purpose Digitally Controlled Variable Gain Block |
Supply Voltage VCC
Pins 5, 9, 10, 19, 20, 23, 27 .For ARP, Max VCC = VEE + 13 V;
. . . . . . . . . . . . . . . . . . . . . . .For ARE, Max VCC = VEE + 11 V
Input VoltagesPins
25, 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5 V
Pins 1, 2, 3, 6, 7 . . . . . . . . . . . . . . . . . . . . . 0.8 V to +5.5 V
Internal Power Dissipation
TSSOP EPAD . . . . . . . . . . . . . . . . . . . . . . . ...... . . . . . . 1.5 W
PSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .2.0 W
Operating Temperature Range . . . . . . . . . . 40°C to +85°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Lead Temperature, Soldering 60 seconds . .. . . . . . . . 300°C
