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ADA4850-2:  High Speed, Rail-to-Rail Output Op Amp with Ultralow Power Down

Product Details

The ADA4850-1/ADA4850-2 are low price, high speed, voltage feedbacks rail-to-rail output op amps with ultralow power-down. Despite their low price, the ADA4850-1/ADA4850-2 provide excellent overall performance and versatility. The 175 MHz, −3 dB bandwidth and 220 V/μs slew rate make these amplifiers well-suited for many general-purpose, high speed applications.

The ADA4850-1/ADA4850-2 are designed to operate at supply voltages as low as 2.7 V and up to 6 V at 2.4 mA of supply current per amplifier. In power-down mode, the supply current is less than 150 nA, ideal for battery-powered applications.

The ADA4850 family provides users with a true single-supply capability, allowing input signals to extend 200 mV below the negative rail and to within 2.2 V of the positive rail. The output of the amplifier can swing within 80 mV of either supply rail.

With its combination of low price, excellent differential gain (0.12%), differential phase (0.09°), and 0.1 dB flatness out to 14 MHz, these amplifiers are ideal for video applications.

The ADA4850-1/ADA4850-2 are designed to work in the extended temperature range of −40°C to +125°C.

Applications

  • Portable multimedia players
  • Video cameras Digital still cameras
  • Consumer video Clock buffers
  • FEATURES and BENEFITS

    • Ultralow power-down current: 150 nA/amplifier maximum
    • Low quiescent current: 2.4 mA/amplifier
    • High speed
      175 MHz, −3 dB bandwidth
      220 V/μs slew rate
      85 ns settling time to 0.1%
    • Excellent video specifications
    • 0.1 dB flatness: 14 MHz
    • Low voltage offset: 0.6 mV
    • Differential gain: 0.12%
    • Differential phase: 0.09°
    • Single-supply operation 2.7 V to 6 V
    • Rail-to-rail output
    • Output swings to within 80 mV of either rail

    Pin Configuration Diagram for ADA4850-2

    Documentation

    Title Content Type File Type
    ADA4850-1/ADA4850-2: High Speed, Rail-to-Rail Output, Op Amps with Ultralow Power Down Datasheet (Rev C, 05/2012) (pdf, 962 kB) Data Sheets PDF
    AN-581: Biasing and Decoupling Op Amps in Single Supply Applications  (pdf, 166 kB) Application Notes PDF
    AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps  (pdf, 55 kB)
    So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
    Application Notes PDF
    AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems  (pdf, 228 kB)
    Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits.
    Application Notes PDF
    MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps  (pdf, 62 kB) Tutorials PDF
    MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters  (pdf, 69 kB) Tutorials PDF
    MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps  (pdf, 66 kB) Tutorials PDF
    MT-056: High Speed Voltage Feedback Op Amps  (pdf, 109 kB) Tutorials PDF
    MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR  (pdf, 104 kB) Tutorials PDF
    MT-052: Op Amp Noise Figure: Don't Be Mislead  (pdf, 60 kB) Tutorials PDF
    MT-050: Op Amp Total Output Noise Calculations for Second-Order System  (pdf, 38 kB) Tutorials PDF
    MT-049: Op Amp Total Output Noise Calculations for Single-Pole System  (pdf, 40 kB) Tutorials PDF
    MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth  (pdf, 81 kB) Tutorials PDF
    MT-047: Op Amp Noise  (pdf, 72 kB) Tutorials PDF
    MT-033: Voltage Feedback Op Amp Gain and Bandwidth  (pdf, 251 kB) Tutorials PDF
    MT-032: Ideal Voltage Feedback (VFB) Op Amp  (pdf, 65 kB) Tutorials PDF
    A Stress-Free Method for Choosing High-Speed Op Amps
    A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
    Webcasts WEBCAST
    UG-017: Universal Evaluation Board for Dual High Speed Op Amps
    Offered in 16-Lead 3 mm × 3 mm LFCSP
     (pdf, 281 kB)
    User Guides PDF
    Analog Introduces Power-saving Video Amplifiers
    (EDN, 2/2005)
    Product Reviews HTML
    Portable Design Announces 2005 Editor's Choice Awards Product Reviews HTML
    High Speed Amplifiers Selection Table  (pdf, 77 kB) Product Selection Guide PDF
    Analog Devices in Advanced TV Overview HTML
    Video Amplifier Products (April 2007)  (pdf, 4117 kB) Overview PDF
    Amplifier pricing where you want it,  (pdf, 1037 kB)
    ... performance where you need it.
    Overview PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    dBm/dBu/dBv Calculator
    This calculator converts between standard units of power measurement and signal strength.
    Utilities and Conversions HTML
    Power Dissipation vs Die Temp
    This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
    Utilities and Conversions HTML
    ADIsimOpAmp™
    This tool will help with the selection, evaluation and troubleshooting of voltage feedback Op-Amps. It uses typical data to model the behavior of a selected amplifier. It allows a user to select an amplifier, configure a circuit, apply a signal and evaluate the performance. It is useful for checking an amplifier's spec's such as Bandwidth, Slew Rate, Input/Output Range, Gain Error, Load Current, Stability Issues and DC Errors in a given circuit.
    ADIsim Design/Simulation Tools HTML
    OpAmp Stability
    An applet for demonstrating stability effects in opamp buffers.
    Design Calculators HTML
    ADA4850 SPICE Macro Model SPICE Models HTML

    Evaluation Kits & Symbols & Footprints

    Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    SampleSample & Buy

    Price, packaging, availability

    ADA4850-2 Model Options
    Price Table Help

    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.

    ADA4850-2 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADA4850-2YCP-EBZ Status: Production 16-lead LFSCP (3x3 mm) Bare Evaluation Board $18.25 Yes -
    ADA4850-2YCPZ-RL7 Status: Production 16-Lead LFCSP - Yes -

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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