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Home > Products > High Voltage Isolation Amplifier > High Voltage Isolation Amplifier AD215ATI

300kHz Bandwidth, Low Distortion Isolation Amplifier AD215ATI

Upgraded Drop-in Replacement for AD215, We guarantee production for ≥10 years.

Part Number	Nonlinearity (typ)	Bandwidth	Isolation Voltage (rms)	Power Supply Current	Rise Time	Price	Buy Now		Datasheet
AD215AYATI	±0.01%	300kHz	750V	+30/−30mA	1μs	$109		0
AD215BYATI	±0.005%	300kHz	1500V	+30/−30mA	1μs	$119		0

Part Number	Package	Datasheet
AD215AYATI	SIP
AD215BYATI	SIP

AD215ATI Main Features

Isolation Voltage Rating: 1500V rms (AD215BYATI); 750V rms (AD215AYATI)
Wide Bandwidth: 300kHz Full-Power (–3dB)
Rapid Slew Rate: 2V/μs
Fast Settling Time: 4μs
Low Harmonic Distortion: –80dB @ 1kHz
Low Nonlinearity: ±0.005% typ (AD215BYATI)
Wide Output Range: ±10 V, min (Buffered)
Built-in Isolated Power Supply: ±15 VDC @ ±10mA
Performance Rated over –40°C to +85°C

AD215ATI Applications

High Speed Data Acquisition Systems
Power Line and Transient Monitors
Multichannel Muxed Input Isolation
Waveform Recording Instrumentation
Power Supply Controls
Vibration Analysis

AD215ATI Low Distortion Isolation Amplifier — Description

The AD215ATI is a high-speed input isolation amplifier designed to isolate and amplify wide-bandwidth analog signals. Its innovative circuit architecture and transformer design provide excellent wideband dynamic performance while preserving key DC performance specifications.
The AD215ATI offers complete galvanic isolation between the input and output stages, including user-accessible isolated front-end power supplies. Powered by a ±15V DC supply, this functionally complete design eliminates the need for an external isolated DC/DC converter. As a result, designers can minimize circuit overhead while reducing overall system complexity and component costs.
Designed for maximum flexibility and ease of use, the AD215ATI is ideal for applications requiring high-speed analog signal measurement in high common-mode voltage (CMV) environments. It features a ±10V input and output range, selectable gains from 1V/V to 10V/V, a buffered output with offset trim capability, and a user-available isolated front-end power supply that delivers ±15V DC at up to ±10mA.

300kHz

Bandwidth (–3dB)

1500V rms

Isolation, 100% tested

±0.005%

Nonlinearity, typ

−80dB

THD at 1kHz

±15V

Isolated power @ ±10mA

01 / Obsolescence replacement

AD215ATI vs. the Original AD215

The AD215AY and AD215BY are out of production. The AD215ATI is a pin-compatible drop-in replacement in the same SIP package, with 2.5× the bandwidth and a 3× faster rise time — and ATI guarantees production for ≥10 years.

Parameter	AD215ATI · in production	AD215 · discontinued
Full-signal bandwidth (–3dB)	300kHz	120kHz
Rise time	1μs	3μs
Power supply current	+30/−30mA	+40/−18mA
Package	SIP	SIP
Availability	≥10 years guaranteed	Stopped production

02 / Engineering rationale

Why Engineers Choose the AD215ATI Isolation Amplifier

Every figure below is taken directly from the AD215ATI datasheet specification table.

High-speed dynamic performance

300kHz typical full-signal bandwidth (200kHz min) at G = 1V/V with a 20Vp-p signal, 1μs rise time, 1μs transport delay, 2V/μs slew rate, 4μs settling to ±0.10%, and only 1% overshoot.

Low harmonic distortion

Harmonic distortion components are −80dB at 1kHz and −65dB at 10kHz — keeping the isolator’s own distortion well below the signals of interest in vibration analysis and power-line monitoring.

Precision accuracy

Nonlinearity ±0.005% typ (±0.015% max) for the AD215BYATI at G = 1V/V, ±10V output swing; gain error ±0.5% typ (±2% max); gain drift ±15ppm/°C over 0°C to +85°C. Transformer construction keeps nonlinearity independent of gain and temperature.

100%-tested galvanic isolation

1500V rms (AD215BYATI) or 750V rms (AD215AYATI). Common-mode capacitance is just 4.5pF including the isolated supply, giving 120dB isolation-mode rejection at 60Hz with R_S ≤ 100Ω (105dB with R_S ≤ 1kΩ) and 2μA rms max leakage at 240V rms, 60Hz.

Built-in isolated supply

An unregulated ±15V DC at ±10mA is available at the isolated input port for auxiliary front-end amplifiers, signal conditioning or transducer excitation. No external isolated DC/DC converter, less board area, lower BOM cost.

Flexible input, buffered output

An uncommitted input op amp allows buffering, gain (1V/V to 10V/V) or custom conditioning. The buffered output drives ±10V into 2kΩ (±5mA, 500pF max capacitive load, 1Ω output resistance) and includes an offset trim pin for system calibration.

Complete function from one ±15V supply

A ±15V DC supply (±14.5V to ±16.5V DC rated, ±14.25V to ±17V DC operating) at +30/−30mA runs the whole isolation function — signal path and isolated front end.

Industrial temperature range

Rated performance across the full −40°C to +85°C range, not just at room temperature.

03 / Selection

Choosing the Right AD215ATI Grade

Both grades share 300kHz bandwidth, 1μs rise time, 2V/μs slew rate, −80dB THD at 1kHz, 1V/V to 10V/V gain, and −40°C to +85°C rated performance.

AD215BYATI

Isolation 1500V rms, 100% tested
Nonlinearity ±0.005% typ (±0.015% max)

For line-connected measurement, transient monitoring and precision waveform recording.

AD215AYATI

Isolation 750V rms, 100% tested
Nonlinearity ±0.01% typ (±0.025% max)

Same speed and distortion performance at a lower isolation rating — for cost-sensitive designs.

04 / FAQ

AD215ATI Isolation Amplifier — Frequently Asked Questions

Tap a question to expand.

Is the AD215ATI a drop-in replacement for the AD215?

Yes. The AD215ATI retains the AD215 SIP pinout and package, so an existing board needs no layout change. Bandwidth, rise time and supply current are all improved relative to the original AD215AY and AD215BY.

What supply does the AD215ATI need?

A dual ±15V DC supply — ±14.5V to ±16.5V DC for rated performance, ±14.25V to ±17V DC operating — drawing +30/−30mA. The isolated front-end rails are generated internally, so no external isolated DC/DC converter is required.

How much isolation voltage does the AD215ATI withstand?

1500V rms input-to-output for the AD215BYATI and 750V rms for the AD215AYATI. Both ratings are 100% tested. Leakage current is 2μA rms max at 240V rms, 60Hz.

What gain settings does the AD215ATI support?

Gain is user-selectable from 1V/V to 10V/V through the uncommitted input amplifier. Input and output ranges are both ±10V, and the output is buffered with an offset trim pin.

How low is the distortion of the AD215ATI?

Harmonic distortion components are −80dB at 1kHz and −65dB at 10kHz. Output ripple and noise are 10mVp-p in a 1MHz bandwidth and 2.5mVp-p in a 50kHz bandwidth.

AD215ATI or AD210ATI — which isolation amplifier should I use?

Choose the AD215ATI for high-speed, low-distortion signal isolation: −80dB THD at 1kHz, 300kHz bandwidth, a buffered output with offset trim, and −40°C to +85°C rated performance in a SIP package. Choose the AD210ATI when you need three-port isolation, up to 2500V rms common-mode voltage, gains up to 100V/V, isolated power at both the input and the output, and 500kHz bandwidth from a single +15V supply.

How long will the AD215ATI remain available?

ATI guarantees production of the AD215ATI for at least 10 years.

05 / Resources