The AD8132 is a low-cost differential or single-ended input to differential output amplifier with resistor-settable gain. The AD8132 is a major advancement over op amps for driving differential input ADCs or for driving signals over long lines. The AD8132 has a unique internal feedback feature that provides output gain and phase matching balanced to 68 dB at 10 MHz, suppressing harmonics, and reducing radiated EMI.
Manufactured on ADI's next generation of XFCB bipolar process, the AD8132 has a 3 dB bandwidth of 350 MHz and delivers a differential signal with 99 dBc SFDR at 5 MHz, despite its low cost. The AD8132 eliminates the need for a transformer with high-performance ADCs, preserving the low frequency and dc information. The common-mode level of the differential output is adjustable by applying a voltage on the VOCM pin, easily level-shifting the input signals for driving single supply ADCs. Fast overload recovery preserves sampling accuracy.
The AD8132 can also be used as a differential driver for the transmission of high-speed signals over low-cost twisted pair or coaxial cables. The feedback network can be adjusted to boost the high-frequency components of the signal. The AD8132 can be used for either analog or digital video signals or for other highspeed data transmission. The AD8132 is capable of driving either cat3 or cat5 twisted pair or coaxial with minimal line attenuation. The AD8132 has considerable cost and performance improvements over discrete line driver solutions.
Differential signal processing reduces the effects of ground noise which plagues ground referenced systems. The AD8132 can be used for differential signal processing (gain and filtering) throughout a signal chain, easily simplifying the conversion between differential and single-ended components.
The AD8132 is available in both SOIC and SOIC packages for operation over 40
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·Low Power Differential ADC Driver·Differential Gain and Differential Filtering·Video Line Driver·Differential In/Out Level-Shifting·Single-Ended Input to Differential Output Driver·Active Transformer
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`High Speed 350 MHz 3 dB Bandwidth 1200 V/s Slew rate`Resistor-Settable Gain`Internal Common-Mode Feedback to Improve Gain and Phase Balance 68 dB @ 10 MHz`Separate Input to Set the Common-Mode Output Voltage`Low Distortion 99 dBc SFDR @ 5 MHz 800 Load`Low Power 10.7 mA @ 5 V`Power Supply Range +2.7 V to ±5.5 V
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| Supply Voltage |
±5.5 V |
| VOCM |
±VS |
| Internal Power Dissipation |
250 mW |
| Operating Temperature Range |
40 to +85 |
| Storage Temperature Range |
65 to +150 |
| Lead Temperature Range (Soldering 10 sec) |
300 |
NOTES
1 Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above listed in the operational section of this specification is not implied. Exposure to Absolute Maximum Ratings for any extended periods may affect device reliability.
2 Thermal resistance measured on SEMI standard 4-layer board.
8-Lead SOIC: JA = 121/W
8-Lead SOIC: JA = 142/W
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