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AD8015AR

IC TRANSIMPEDANCE 1 CIRC 8SOIC

Part Number: AD8015AR

Manufacturer: Analog Devices Inc.

Category: Instrumentation, Op Amps, Buffer Amps

Package: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: AD8015AR.pdf

Description: IC TRANSIMPEDANCE 1 CIRC 8SOIC

Select Quantity Stock: 4,302

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

AD8015AR 155 Mbps Transimpedance Amplifier

A comprehensive technical overview of the AD8015AR, a wide bandwidth, single supply transimpedance amplifier from Analog Devices optimized for fiber optic receiver applications. Covers device function, core features, electrical specifications, 8-lead SOIC package, pin configuration, typical applications, and replacement selection guidance.

Analog Devices 8-Lead SOIC 4.5V to 11V Single Supply

Device Classification 155 Mbps Transimpedance Amplifier

Part Number: AD8015AR

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +85°C

PRODUCT OVERVIEW

What Is the AD8015AR?

AD8015AR is a wide bandwidth, single supply transimpedance amplifier from Analog Devices optimized for use in fiber optic receiver circuits. It is a complete, single-chip solution for converting photodiode current into a differential voltage output.[reference:0][reference:1]

The AD8015AR features a 240 MHz bandwidth, enabling applications in FDDI receivers and SONET/SDH receivers with data rates up to 155 Mbps. This high bandwidth supports data rates beyond 300 Mbps.[reference:2][reference:3] The differential outputs can drive ECL directly, or drive a comparator/fiber optic post amplifier.[reference:4][reference:5]

In addition to fiber optic applications, this low cost, silicon alternative to GaAs-based transimpedance amplifiers is ideal for systems requiring a wide dynamic range preamplifier or single-ended to differential conversion.[reference:6] The IC can be used with a standard ECL power supply (-5.2 V) or a PECL (+5 V) power supply; the common mode at the output is ECL compatible.[reference:7] The AD8015AR is available in an 8-lead SOIC package and is rated for operation from –40°C to +85°C.[reference:8][reference:9]

Wide Bandwidth 240 MHz bandwidth supports data rates up to 155 Mbps (and beyond 300 Mbps) for high-speed fiber optic communication.[reference:10]

Complete Single-Chip Solution Converts photodiode current directly to differential voltage output with integrated transimpedance amplifier.[reference:11]

Low Cost, Low Power Silicon alternative to GaAs-based TIA with 25 mA typical supply current at 5 V.[reference:12]

DEVICE HIGHLIGHTS

Key Features and Benefits of AD8015AR

240 MHz Wide Bandwidth

240 MHz bandwidth enables applications in FDDI receivers and SONET/SDH receivers with data rates up to 155 Mbps, supporting data rates beyond 300 Mbps.[reference:13]

Ultra-Low Noise Performance

Input current noise of 3.0 pA/√Hz at 100 MHz and total input RMS noise of 26.5 nA to 100 MHz ensure high sensitivity for low-level optical signals.[reference:14]

Flexible Power Supply Options

Operates from a single 4.5V to 11V supply or dual ±2.25V to ±5.5V supplies. Can be used with standard ECL (-5.2V) or PECL (+5V) power supplies.[reference:15]

Differential Output with ECL Compatibility

Differential outputs drive ECL directly or drive a comparator/fiber optic post amplifier; output common mode is ECL compatible.[reference:16]

Low Power Consumption

25 mA typical supply current at 5 V and peak input current of ±350 µA, making it suitable for power-sensitive applications.[reference:17][reference:18]

Compact 8-Lead SOIC Package

Available in a standard 8-lead SOIC package for space-constrained designs.[reference:19]

REFERENCE DATA

Technical Specifications for AD8015AR

Part Number	AD8015AR	Manufacturer	Analog Devices
Device Type	155 Mbps Transimpedance Amplifier	Number of Channels	1
Bandwidth	240 MHz[reference:20]	Output Type	Differential[reference:21]
Supply Voltage (Single)	4.5V to 11V[reference:22]	Supply Voltage (Dual)	±2.25V to ±5.5V[reference:23]
Supply Current	25 mA (Typical)[reference:24]	Peak Input Current	±350 µA[reference:25]
Input Current Noise	3.0 pA/√Hz @ 100 MHz[reference:26]	Total Input RMS Noise	26.5 nA to 100 MHz[reference:27]
Optical Sensitivity	–36 dBm @ 155.52 Mbps[reference:28]	Pulse Width Modulation	500 ps[reference:29]
Rise Time / Fall Time	1.5 ns[reference:30]	Transimpedance (Differential)	20 kΩ[reference:31]
Transimpedance (Single-Ended)	10 kΩ[reference:32]	Output Impedance	50 Ω[reference:33]
Package	8-Lead SOIC[reference:34]	Package Body Size	4.90 mm × 3.91 mm
Mounting Type	Surface Mount[reference:35]	Operating Temperature	-40°C to +85°C[reference:36]
Storage Temperature	-65°C to +150°C[reference:37]	Product Status	Obsolete[reference:38]
Packaging	Tube (98 per Tube)[reference:39]	US ECCN	EAR99

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for AD8015AR

Configuration & Operation

The AD8015AR is a transimpedance amplifier designed for fiber optic receiver applications:

Transimpedance Function: Converts photodiode current into a differential voltage output with 50Ω output impedance[reference:40]
Single-Ended Input: Optimized for direct connection to a photodiode with wide dynamic range[reference:41]
Differential Outputs: Differential outputs drive ECL directly or can drive a comparator/fiber optic post amplifier[reference:42]
Power Supply: Operates from single 4.5V to 11V or dual ±2.25V to ±5.5V supplies; compatible with ECL (-5.2V) or PECL (+5V)[reference:43]
Stable Operation: Stable operation with high capacitance photodetectors[reference:44]

PCB and Power-Supply Guidance

Transimpedance amplifier performance depends on layout, bypassing, and component selection:

Photodiode Connection: Connect photodiode directly to the input for optimal performance; minimize parasitic capacitance[reference:45]
Bypass Capacitors: Place 0.1 µF and 10 µF decoupling capacitors close to the supply pins
Layout Considerations: Keep input traces short and away from noise sources for low noise operation
Differential Outputs: Route differential outputs as a matched pair to maintain signal integrity
Output Load: 50Ω output impedance for driving transmission lines or ECL inputs[reference:46]
ESD Precautions: The device is ESD sensitive (up to 4000V can accumulate); proper ESD precautions are recommended[reference:47]
Verify the recommended PCB footprint from the official datasheet before production

8-LEAD SOIC

Pin Configuration Reference for AD8015AR

AD8015

SOIC TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The SOIC package has 8 pins with 1.27mm pitch.

1 OUT- Differential Output - Negative Output

2 OUT+ Differential Output - Positive Output

3 VEE Negative Supply Voltage - Connect to -5.2V for ECL operation or to ground for PECL

4 IN Single-Ended Input - Connect to photodiode output

5 VCC Positive Supply Voltage - 4.5V to 11V

6 VREF Reference Output - Reference voltage for output common mode

7 NC No Connect - Not internally connected

8 GND Ground - Signal ground reference

APPLICATION AREAS

Typical Applications for AD8015AR

Fiber Optic Receivers

SONET/SDH, FDDI, Fibre Channel receivers requiring high sensitivity and wide bandwidth.[reference:48]

High Capacitance Photodetectors

Stable operation with high capacitance detectors for reliable optical signal conversion.[reference:49]

Low Noise Preamplifiers

3.0 pA/√Hz input current noise for ultra-low noise preamplification in sensitive applications.[reference:50]

Single-Ended to Differential Conversion

Single-ended to differential conversion for driving ECL or differential comparators.[reference:51]

I-to-V Converters

Current-to-voltage conversion for photodiode and other current-output sensors.[reference:52]

Wide Dynamic Range Systems

Systems requiring wide dynamic range preamplifier or signal conditioning.

REPLACEMENT GUIDANCE

Selecting an Alternative for AD8015AR

A replacement for the AD8015AR should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements.

Bandwidth (240 MHz)[reference:53]

Input current noise (3.0 pA/√Hz @ 100 MHz)[reference:54]

Supply voltage range (4.5V–11V single, ±2.25V–±5.5V dual)[reference:55]

Output type (Differential, 50Ω)[reference:56]

Package (8-lead SOIC)[reference:57]

Temperature range (–40°C to 85°C)[reference:58]

Peak input current (±350 µA)[reference:59]

Optical sensitivity (–36 dBm @ 155.52 Mbps)[reference:60]

Family alternatives: AD8015ARZ (lead-free RoHS-compliant version, active/production status)[reference:61], AD8015AR-REEL7 (tape and reel packaging)[reference:62], AD8015ARZ-REEL7 (lead-free, tape and reel)[reference:63]. The AD8015 is also available in die form (AD8015ACHIPS)[reference:64]. The AD8015AR is obsolete[reference:65]; for new designs, it is strongly recommended to use the lead-free version AD8015ARZ which remains in active production[reference:66]. Select based on RoHS compliance, packaging, and sourcing needs.

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MANUFACTURER INFORMATION

Analog Devices

The AD8015 (AD8015AR) belongs to the transimpedance amplifier portfolio of Analog Devices. The device is a wide bandwidth, single supply transimpedance amplifier optimized for fiber optic receiver applications, providing a complete single-chip solution for converting photodiode current into a differential voltage output.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: AD8015AR

Manufacturer: Analog Devices Inc.

Package: 8-SOIC (0.154", 3.90mm Width)

Series: -

Package/Case: 8-SOIC (0.154", 3.90mm Width)

Packaging: Tube

Product Status: Obsolete

Amplifier Type: Transimpedance

Number of Circuits: 1

Output Type: Differential

Slew Rate: -

Gain Bandwidth Product: 240 MHz

-3db Bandwidth: -

Current - Input Bias: -

Voltage - Input Offset: -

Current - Supply: 25mA

Current - Output / Channel: -

Voltage - Supply Span (Min): 4.5 V

Voltage - Supply Span (Max): 11 V

Operating Temperature: -40°C ~ 85°C

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 8-SOIC

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Part Number: AD8015AR

Manufacturer: Analog Devices Inc.

Package: 8-SOIC (0.154", 3.90mm Width)

Category: Instrumentation, Op Amps, Buffer Amps

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