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AD8352:  2 GHz Ultralow Distortion Differential RF/IF Amplifier

The AD8352 is a high performance differential amplifier optimized for RF and IF applications. It achieves better than 80 dB SFDR performance at frequencies up to 200 MHz, and 65 dB beyond 500 MHz, making it an ideal driver for high speed 12-bit to 16-bit analog-to-digital converters (ADCs).

Unlike other wideband differential amplifiers, the AD8352 has buffers that isolate the gain setting ...More

AD8352:  2 GHz Ultralow Distortion Differential RF/IF Amplifier

Product Description

The AD8352 is a high performance differential amplifier optimized for RF and IF applications. It achieves better than 80 dB SFDR performance at frequencies up to 200 MHz, and 65 dB beyond 500 MHz, making it an ideal driver for high speed 12-bit to 16-bit analog-to-digital converters (ADCs).

Unlike other wideband differential amplifiers, the AD8352 has buffers that isolate the gain setting resistor (RG) from the signal inputs. As a result, the AD8352 maintains a constant 3 kΩ input resistance for gains of 3 dB to 25 dB, easing matching and input drive requirements. The AD8352 has a nominal 100 Ω differential output resistance.

The device is optimized for wideband, low distortion performance at frequencies beyond 500 MHz. These attributes, together with its wide gain adjust capability, make this device the amplifier of choice for general-purpose IF and broadband applications where low distortion, noise, and power are critical. It is ideally suited for driving not only ADCs, but also mixers, pin diode attenuators, SAW filters, and multi-element discrete devices. The device is available in a compact 3 mm × 3 mm, 16-lead LFCSP and operates over a temperature range of −40°C to +85°C.


Applications
  • Differential ADC drivers
  • Single-ended-to-differential conversion
  • RF/IF gain blocks
  • SAW filter interfacing
    • −3 dB bandwidth of 2.2 GHz (AV = 10 dB)
    • Single resistor gain adjust: 3 dB < AV < 25 dB
    • Single resistor and capacitor distortion adjust
    • Input resistance: 3 kΩ, independent of gain (AV)
    • Differential or single-ended input to differential output
    • Low noise input stage: 2.7 nV/√Hz RTI @ AV = 10 dB
    • Low broadband distortion:
      10 MHz: −86 dBc HD2, −82 dBc HD3
      70 MHz: −84 dBc HD2, −82 dBc HD3
      190 MHz: −81 dBc HD2, −87 dBc HD3
    • OIP3 of 41 dBm @ 150 MHz
    • Slew rate: 8 V/ns
    • Fast settling and overdrive recovery of 2 ns
    • See data sheet for additional Features
    • -3 dB BW (MHz): 2200MHz
    • Supply Current : 37mA
    • Slew Rate (V/us): 11000V/µs
    • Distortion (2nd) (dBc): -83dBc
    • Distortion (3rd) (dBc): -83dBc
    • Package: 16-Lead LFCSP

    Functional Block Diagram for AD8352

    Circuits from the Lab

    Find more at our Circuits Library.

    Part# -3 dB BW (MHz) Minimum Gain (Acl) Voltage Supply (V) Supply Current Slew Rate (V/us) Distortion (2nd) (dBc) Distortion (3rd) (dBc) Package Price* (1000-4999)
    AD6630 700 - +/- 5 30mA 3700 - - 16-Lead SOIC $4.18
    AD8132 350 1 +/- 5 10.7mA 1200 -97 -100 8-Lead MSOP, 8-Lead SOIC $1.67
    AD8137 110 1 +/- 6 3.6mA 450 -85 -85 8-Lead SOIC $1.10
    AD8138 320 1 +/- 5 20mA 1500 -94 -114 8-Lead CSP, 8-Lead SOIC $3.75
    AD8139 410 1 5 to 12 24.5mA 800 -90 -105 8-Lead CSP, 8-Lead SOIC $3.75
    AD8350 900 - 4 to 11 28mA 2000 -66 -65 8-Lead SOIC/8-Lead uSOIC $2.52
    AD8351 2200 1 3 to 5.5 28mA 13000 -79 -81 10-Lead uSOIC $2.68
    AD8352 2200 - 3 to 5.5 37mA 11000 -83 -83 16-Lead LFCSP $3.53
    ADA4922-1 38 1 +/- 12 9.4mA 730 -116 -109 - $3.63
    ADA4927-1 2300 1 4.5 to 11 22.1mA 5000 -87 -89 16-Lead LFCSP $3.79
    ADA4927-2 2300 1 4.5 to 11 22.1mA 5000 -87 -89 24-Lead LFCSP $6.29
    ADA4932-1 560 1 3 to 11 9.6mA 410 -72 -80 16-Lead LFCSP $2.95
    ADA4932-2 560 1 3 to 11 9.6mA 410 -72 -80 24-Lead LFCSP $5.29
    ADA4937-1 1900 1 3 to 5.25 39.5mA 6000 -70 -84 16-Lead LFCSP $3.79
    ADA4937-2 1900 1 3 to 5.25 42mA 6000 -77 -84 16-Lead LFCSP, 24-Lead LFCSP $5.69
    ADA4938-1 1000 1 4.5 to 11 40mA 4700 -82 -82 16-Lead LFCSP, 24-Lead LFCSP $3.79
    ADA4938-2 1000 1 4.5 to 11 36.5mA 4700 -82 -82 16-Lead LFCSP, 24-Lead LFCSP $5.69
    ADA4939-1 1400 2 3 to 5 37.7mA 6800 -77 -95 16-Lead LFCSP $3.79
    ADA4939-2 1400 2 3 to 5 37.7mA 6800 -77 -91 16-Lead LFCSP $5.69
    ADA4941-1 30 2 - 2.3mA 22 -75 -71 8-Lead LFCSP, 8-Lead SOIC $2.42
    ADA4950-1 750 1 3 to 11 9.5mA 2900 -80 -84 16-Lead LFCSP, 24-Lead LFCSP $2.99
    ADA4950-2 750 1 3 to 11 9.5mA 2900 -80 -84 16-Lead LFCSP, 24-Lead LFCSP $5.29
    ADL5561 2900 6 3.3 40mA 9800 -95 -87 16-Lead LFCSP $3.68
    ADL5562 3300 6 3.3 80mA 9800 -104 -87 16-Lead LFCSP $3.68

    * 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.

    Pricing, Packaging & Availability

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    *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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.