AD8307ANZ
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Analog Devices Inc. AD8307ANZ

Manufacturer No:
AD8307ANZ
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC LOGARITHMIC AMPLIFIER 8DIP
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The AD8307ANZ, produced by Analog Devices Inc., is a low-cost, monolithic demodulating logarithmic amplifier. It is the first logarithmic amplifier available in an 8-lead SOIC package and is designed for a wide range of applications requiring signal level conversion to decibel form. The AD8307 operates from a single-supply voltage of 2.7 V to 5.5 V, consuming 7.5 mA of current, and can be disabled to a standby current of under 150 μA using a CMOS-compatible control pin. It is highly stable and easy to use, requiring no significant external components.

Key Specifications

Parameter Conditions Min Typ Max Unit
Input Range (±3 dB Error) From noise floor to maximum input - - 92 dB -
Input Range (±1 dB Error) From noise floor to maximum input - - 88 dB -
Logarithmic Conformance f ≤ 100 MHz, central 80 dB ±0.3 dB ±1 dB - -
Logarithmic Slope Unadjusted 23 mV/dB 25 mV/dB 27 mV/dB -
Supply Voltage - 2.7 V - 5.5 V -
Supply Current VENB ≥ 2 V 8 mA - 10 mA -
Standby Current VENB ≤ 1 V 150 μA - 750 μA -
Operating Temperature Range - -40°C - +85°C -
Package Types - - - 8-lead SOIC, 8-lead PDIP -

Key Features

  • Complete 500 MHz monolithic demodulating logarithmic amplifier based on the progressive compression technique.
  • Dynamic range of 92 dB to ±3 dB law conformance and 88 dB to a tight ±1 dB error bound at all frequencies up to 100 MHz.
  • Single-supply voltage of 2.7 V to 5.5 V at 7.5 mA, with a standby current of under 150 μA.
  • CMOS-compatible control pin for enabling/disabling the device.
  • Highly stable and easy to use, requiring no significant external components.
  • Operates over the industrial temperature range of –40°C to +85°C.
  • Available in 8-lead SOIC and PDIP packages.
  • Logarithmic output voltage scaled at 25 mV/dB, adjustable via external components.
  • Excellent supply insensitivity and temperature stability of the scaling parameters.

Applications

  • Conversion of signal level to decibel form.
  • Transmitter antenna power measurement.
  • Receiver signal strength indication (RSSI).
  • Low-cost radar and sonar signal processing.
  • Network and spectrum analyzers (up to 120 dB).
  • Signal level determination down to 20 Hz.
  • True decibel ac mode for multimeters.

Q & A

  1. What is the dynamic range of the AD8307ANZ?

    The AD8307ANZ has a dynamic range of 92 dB to ±3 dB law conformance and 88 dB to a tight ±1 dB error bound at all frequencies up to 100 MHz.

  2. What is the supply voltage range for the AD8307ANZ?

    The supply voltage range is from 2.7 V to 5.5 V.

  3. What is the standby current of the AD8307ANZ?

    The standby current is under 150 μA when the device is disabled.

  4. What are the package types available for the AD8307ANZ?

    The AD8307ANZ is available in 8-lead SOIC and 8-lead PDIP packages.

  5. What is the operating temperature range of the AD8307ANZ?

    The operating temperature range is from –40°C to +85°C.

  6. How does the AD8307ANZ achieve its logarithmic function?

    The AD8307ANZ uses a cascade of nonlinear amplifier cells (progressive compression technique) to generate the logarithmic function.

  7. Can the AD8307ANZ be used at low frequencies?

    Yes, the AD8307ANZ can be used at audio frequencies (20 Hz) or even lower.

  8. How is the logarithmic output voltage scaled?

    The logarithmic output voltage is scaled at 25 mV/dB and can be adjusted using external components.

  9. What are some common applications of the AD8307ANZ?

    Common applications include signal level conversion, transmitter antenna power measurement, RSSI, low-cost radar and sonar signal processing, and network and spectrum analyzers.

  10. Is the AD8307ANZ easy to use?

    Yes, the AD8307ANZ is highly stable and easy to use, requiring no significant external components.

Product Attributes

Type:Logarithmic Amplifier
Applications:Receiver Signal Strength Indication (RSSI)
Mounting Type:Through Hole
Package / Case:8-DIP (0.300", 7.62mm)
Supplier Device Package:8-PDIP
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Similar Products

Part Number AD8307ANZ AD8307ARZ AD8307AN
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active
Type Logarithmic Amplifier Logarithmic Amplifier Logarithmic Amplifier
Applications Receiver Signal Strength Indication (RSSI) Receiver Signal Strength Indication (RSSI) Receiver Signal Strength Indication (RSSI)
Mounting Type Through Hole Surface Mount Through Hole
Package / Case 8-DIP (0.300", 7.62mm) 8-SOIC (0.154", 3.90mm Width) 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-PDIP 8-SOIC 8-PDIP

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