AD810AR-REEL Equivalent & Substitute Parts

Part Overview

The AD810AR-REEL is a current feedback amplifier integrated circuit manufactured by Analog Devices Inc., classified as a linear amplifier in the 8-SOIC surface mount package. This device is designed for video amplification applications requiring high-speed current feedback topology. The AD810AR-REEL is currently listed as obsolete, making identification of equivalent and substitute parts essential for design continuity and procurement planning. Active alternatives with compatible electrical and mechanical specifications are available from both Analog Devices Inc. and Texas Instruments.

Key Parameters

Parameter	Value
Manufacturer	Analog Devices Inc.
Category	Linear, Amplifiers
Amplifier Type	Current Feedback
Number of Circuits	1
-3dB Bandwidth	80 MHz
Slew Rate	1000 V/µs
Current - Supply	6.8 mA
Current - Output / Channel	60 mA
Voltage - Supply, Single/Dual (±)	5V ~ 36V, ±2.5V ~ 18V
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the AD810AR-REEL is determined by compatibility across the following critical parameters: amplifier type (current feedback topology), number of circuits (single channel), package type (8-SOIC surface mount), and electrical performance specifications including bandwidth, slew rate, supply voltage range, and output current capability.

The substitute parts are grouped into two categories:

Direct Equivalent: The AD810ARZ-REEL maintains identical electrical specifications and differs only in packaging format (Tape & Reel versus individual reel configuration) and product status (Active). This part is a pin-for-pin and functionally equivalent replacement.

Functional Alternatives: The LT1228 and LT1252 series, along with the THS3110 and THS3111 devices, operate as current feedback amplifiers in the same 8-SOIC package with compatible supply voltage ranges. These parts exhibit variations in bandwidth, slew rate, and output current specifications, requiring verification that the application tolerates these parameter differences. The LT1228 series offers higher bandwidth (100 MHz) and slew rate (3500 V/µs) compared to the AD810AR-REEL. The LT1252 series provides significantly higher bandwidth (282 MHz) but lower slew rate (125 V/µs). The THS3110 and THS3111 devices deliver 100 MHz bandwidth with 1300 V/µs slew rate and higher output current capability (260 mA).

Parameter Comparison

Parameter	AD810AR-REEL	AD810ARZ-REEL	LT1228CS8#TRPBF	LT1228IS8#PBF	LT1252CS8#TRPBF	THS3110IDR	THS3111CD
Manufacturer	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Texas Instruments	Texas Instruments
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback
Number of Circuits	1	1	1	1	1	1	1
-3dB Bandwidth	80 MHz	80 MHz	100 MHz	100 MHz	282 MHz	100 MHz	100 MHz
Slew Rate	1000 V/µs	1000 V/µs	3500 V/µs	3500 V/µs	125 V/µs	1300 V/µs	1300 V/µs
Current - Supply	6.8 mA	6.8 mA	6 mA	6 mA	8.5 mA	4.8 mA	4.8 mA
Current - Output / Channel	60 mA	60 mA	125 mA	125 mA	55 mA	260 mA	260 mA
Voltage - Supply (Min)	±2.5V / 5V	±2.5V / 5V	4V	4V	4V / ±2V	10V	10V
Voltage - Supply (Max)	±18V / 36V	±18V / 36V	36V	36V	28V / ±14V	30V	30V
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Operating Temperature	Not specified	Not specified	0°C ~ 70°C	-40°C ~ 85°C	Not specified	-40°C ~ 85°C	0°C ~ 70°C

Engineering Selection Recommendations

Primary Recommendation: AD810ARZ-REEL

The AD810ARZ-REEL is the direct functional equivalent of the AD810AR-REEL. Both devices share identical electrical specifications, including 80 MHz bandwidth, 1000 V/µs slew rate, 6.8 mA supply current, and 60 mA output current capability. The AD810ARZ-REEL is currently in active production status with ROHS3 compliance and REACH unaffected certification. This part is suitable for direct substitution in existing designs without circuit modification.

Secondary Recommendations: LT1228 Series

The LT1228CS8#TRPBF and LT1228IS8#PBF are active current feedback amplifiers offering enhanced performance characteristics. These devices provide 100 MHz bandwidth and 3500 V/µs slew rate, exceeding the AD810AR-REEL specifications. The LT1228IS8#PBF variant supports extended operating temperature range (-40°C to 85°C) and is available in high inventory quantities. Both variants are ROHS3 compliant. Selection between commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature grades depends on application requirements.

Tertiary Recommendations: LT1252 Series

The LT1252CS8#TRPBF provides significantly higher bandwidth (282 MHz) suitable for applications requiring extended frequency response. This device operates within compatible supply voltage ranges (4V to 28V single supply, ±2V to ±14V dual supply) and maintains ROHS3 compliance. The reduced slew rate (125 V/µs) and lower output current (55 mA) require verification against application specifications.

Alternative Recommendations: THS3110 and THS3111 Series

The THS3110IDR and THS3111CD are Texas Instruments current feedback amplifiers offering 100 MHz bandwidth with 1300 V/µs slew rate and significantly higher output current capability (260 mA). The THS3110IDR supports industrial temperature range (-40°C to 85°C), while the THS3111CD operates within commercial range (0°C to 70°C). Both devices require minimum supply voltage of 10V, which may restrict use in lower voltage applications. ROHS3 compliance and REACH unaffected status are confirmed for both variants.

Frequently Asked Questions (FAQ)

Q: Can the AD810ARZ-REEL be used as a direct replacement for the AD810AR-REEL?

A: Yes. The AD810ARZ-REEL is electrically and functionally identical to the AD810AR-REEL. Both devices share the same 8-SOIC package, pin configuration, and electrical specifications. The primary difference is packaging format (Tape & Reel) and active product status. No circuit modifications are required.

Q: What are the key differences between the AD810AR-REEL and LT1228 series?

A: The LT1228 series provides higher bandwidth (100 MHz versus 80 MHz) and significantly higher slew rate (3500 V/µs versus 1000 V/µs). The LT1228 also offers higher output current capability (125 mA versus 60 mA). Supply voltage ranges are compatible. These enhanced specifications make the LT1228 suitable for applications requiring faster transient response and higher frequency operation.

Q: Is the LT1252 series suitable for all applications using the AD810AR-REEL?

A: The LT1252 series is not universally suitable. While it provides significantly higher bandwidth (282 MHz), the slew rate is substantially lower (125 V/µs versus 1000 V/µs). Applications sensitive to slew rate performance or transient response may experience degraded performance. Verification against specific application requirements is necessary.

Q: What is the minimum supply voltage requirement for THS3110 and THS3111 devices?

A: Both THS3110 and THS3111 devices require a minimum supply voltage of 10V. The AD810AR-REEL operates at lower supply voltages (5V minimum for single supply, ±2.5V for dual supply). Applications operating below 10V supply voltage cannot use these Texas Instruments alternatives.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (AD810ARZ-REEL, LT1228 series, LT1252 series, THS3110, and THS3111) are ROHS3 compliant. The original AD810AR-REEL RoHS status is not specified in available documentation.

Q: What is the difference between LT1228CS8#TRPBF and LT1228IS8#PBF?

A: Both devices are electrically identical current feedback amplifiers with 100 MHz bandwidth and 3500 V/µs slew rate. The primary differences are: (1) temperature grade—CS8 operates 0°C to 70°C (commercial), IS8 operates -40°C to 85°C (industrial); (2) packaging—TRPBF indicates Tape & Reel format, PBF indicates Tube format. Selection depends on temperature requirements and packaging preferences.

Q: Can the THS3111CD replace the THS3110IDR?

A: Both devices are electrically identical with 100 MHz bandwidth, 1300 V/µs slew rate, and 260 mA output current. The primary difference is operating temperature range: THS3110IDR supports -40°C to 85°C (industrial), while THS3111CD operates 0°C to 70°C (commercial). Selection depends on application temperature requirements.

Q: What packaging options are available for substitute parts?

A: All substitute parts are available in 8-SOIC surface mount package with 0.154" (3.90mm) width, matching the AD810AR-REEL package. Packaging format options include Tube and Tape & Reel (TR) configurations. Verify specific packaging requirements with procurement specifications.

Q: Are there supply voltage compatibility issues between the AD810AR-REEL and substitute parts?

A: The AD810ARZ-REEL, LT1228 series, and LT1252 series maintain compatible supply voltage ranges with the AD810AR-REEL. The THS3110 and THS3111 devices require minimum 10V supply voltage, which may be incompatible with applications using lower supply voltages. Verify supply voltage specifications against application requirements before selection.

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