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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Analog Devices Inc. AD8028ARMZ

Name: AD8028ARMZ
Brand: Analog Devices Inc.
SKU: AD8028ARMZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD8028ARMZ

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: AD8028ARMZ.pdf

Description:: IC OPAMP GP 2 CIRCUIT 10MSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AD8028ARMZ from Analog Devices is a dual-channel, rail-to-rail input/output high-speed voltage feedback amplifier optimized for precision video, ADC driving, and low-voltage instrumentation. It delivers 190 MHz −3 dB bandwidth (G = +1), 100 V/µs slew rate, 120 dBc SFDR at 1 MHz, 4.3 nV/√Hz input voltage noise, and operates from 2.7 V to 12 V supply. Its DISABLE/SELECT pin enables crossover threshold selection and power-down mode.

For engineers reviewing the AD8028ARMZ datasheet, AD8028ARMZ pinout, AD8028ARMZ application, or AD8028ARMZ equivalent, key selection considerations include dual-channel rail-to-rail I/O performance at low supply voltages, selectable input stage crossover for distortion minimization in high-side/low-side signal paths, and automotive-qualified variants (AD8028WARMZ-R7) for extended temperature operation.

Technical Context

The AD8028ARMZ employs a complementary bipolar XFCB process enabling simultaneous rail-to-rail input (−0.2 V to +5.2 V on 5 V supply) and output swing (0.04 V to 4.96 V), with intrinsic crossover distortion suppression via user-selectable NPN/PNP input pair dominance through the DISABLE/SELECT pin. Its 100 V/µs slew rate and 190 MHz bandwidth support fast transient fidelity in G = +1 configurations.

Each channel features independent DISABLE/SELECT control (pins 5 and 6 in MSOP-10), allowing per-channel shutdown and crossover point configuration-critical for multi-gain-path systems like composite video filters or dual ADC front-ends where channel-specific common-mode optimization is required.

Key Specifications

Parameter	Value and Actual Design Meaning
−3 dB Bandwidth	190 MHz at G = +1, 0.2 V_p-p - supports high-fidelity baseband video and wideband sensor signal conditioning without gain-dependent bandwidth collapse.
Slew Rate	100 V/µs (G = −1) - ensures <35 ns settling to 0.1% for 2 V step inputs, critical for driving 16-bit SAR ADCs without missing codes.
SFDR	120 dBc at 1 MHz, 2 V_p-p - enables clean signal acquisition in high-dynamic-range instrumentation and professional video line drivers.
Input Voltage Noise	4.3 nV/√Hz - preserves SNR in low-level signal amplification stages, especially when driving high-resolution ADCs with >90 dB ENOB.
Supply Range	2.7 V to 12 V - allows single-supply 3 V/5 V operation and dual-supply ±5 V use, simplifying power architecture in portable and industrial systems.
Quiescent Current	6.5 mA per amplifier (typical) - balances speed and power efficiency for battery-sensitive or thermally constrained designs.
Operating Temp	−40°C to +125°C - meets extended industrial and automotive under-hood requirements without derating.

Pinout & Package

AD8028ARMZ is packaged in a 10-lead MSOP (3 mm × 3 mm, 0.5 mm pitch) with exposed pad for thermal enhancement. Pin 10 is +VS; pins 4 and 10 are supply rails; pins 2/3 and 7/8 form dual differential input pairs; pins 1 and 9 are outputs; pins 5 and 6 are independent DISABLE/SELECT controls per channel.

Pin/Terminal	Circuit Role	Design Meaning
1	VOUTA	Amplifier A output - rail-to-rail capable, drives 1 kΩ load to within 40 mV of rails at 5 V supply.
2	−IN A	Inverting input, Channel A - part of complementary PNP/NPN input stage; common-mode range extends 200 mV beyond rails.
3	+IN A	Non-inverting input, Channel A - matched to −IN A for precision differential gain; laser-trimmed offset ≤900 µV.
4	−VS	Negative supply - accepts ground (single-supply) or negative voltage (dual-supply); must be bypassed with 0.1 µF ceramic.
5	DISABLE/SELECT A	Channel A control - logic-low disables amplifier; tristate or high selects NPN/PNP crossover bias point for optimal distortion at specific V_CM.
6	DISABLE/SELECT B	Channel B control - independent of Channel A; enables asymmetric power management in multi-channel systems.
7	+IN B	Non-inverting input, Channel B - electrically identical to +IN A; supports dual-sensor or dual-path signal conditioning.
8	−IN B	Inverting input, Channel B - matched pair with +IN B; maintains crosstalk <−92 dB between channels at 1 MHz.
9	VOUTB	Amplifier B output - fully independent; no shared internal nodes with VOUTA, preserving channel isolation.
10	+VS	Positive supply - supplies both amplifiers; total quiescent current 13 mA typical across both channels.

Key Features

Feature	Design Value
Selectably configurable input crossover threshold	Two preset modes (NPN-dominant or PNP-dominant) via DISABLE/SELECT pin - reduces harmonic distortion by avoiding ambiguous transition region in rail-to-rail input stage.
Rail-to-rail input and output	Input CMVR: −0.2 V to +5.2 V (5 V supply); output swing: 0.04 V to 4.96 V - maximizes dynamic range in low-voltage systems without level-shifting circuitry.
Per-channel power-down	320–450 µA disabled current per amplifier - enables dynamic channel gating in time-multiplexed ADC interfaces or power-aware video pipelines.
No phase reversal	Operates safely with inputs up to \|V_S\| + 200 mV - eliminates latch-up risk in overvoltage transients common in sensor front-ends and industrial I/O.
Low distortion at low supply	85 dBc SFDR on ±1.5 V supplies - sustains high-fidelity signal integrity even in ultra-low-power portable instrumentation.

Applications

Professional Video Line Driver	16-Bit Dual ADC Front-End
Use Scenario: Driving NTSC/PAL composite video signals across 75 Ω coaxial cable with minimal differential gain/phase error. IC Role / Device Role / Timing Role: Dual-channel buffer with G = +2, compensating for cable loss while maintaining <0.1% differential gain and <0.2° phase error. Use Value: Eliminates external AC-coupling and DC restoration circuitry due to rail-to-rail I/O and 0.1% flatness to 16 MHz.	Use Scenario: Simultaneously conditioning two analog sensor outputs (e.g., pressure + temperature) before sampling by dual 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Dual-channel driver with matched propagation delay (<1 ns skew) and 35 ns 0.1% settling to prevent aperture uncertainty errors. Use Value: Enables synchronized dual-channel acquisition at ≥1 MSPS without inter-channel timing mismatch or code-miss penalties.
Low-Voltage Instrumentation Amplifier Stage	Active Band-Pass Filter for Sensor Signal Conditioning
Use Scenario: Amplifying microvolt-level thermocouple or strain gauge outputs in battery-powered handheld meters operating from 3.3 V. IC Role / Device Role / Timing Role: First-stage gain block with 4.3 nV/√Hz noise, 900 µV max offset, and 2.7 V minimum supply - preserves resolution in sub-16-bit systems. Use Value: Achieves >100 dB SNR at 1 kHz with no external trimming or chopper stabilization, reducing BOM count and calibration complexity.	Use Scenario: Implementing a 100 kHz center-frequency, 10 kHz bandwidth active band-pass filter for ECG or vibration sensor signals. IC Role / Device Role / Timing Role: Dual-op-amp topology (one as integrator, one as summer) leveraging 190 MHz GBW to maintain Q-factor stability across temperature. Use Value: Delivers <0.5 dB passband ripple and −40 dB stopband rejection without component drift-induced center-frequency shift.

Professional Video Line Driver

16-Bit Dual ADC Front-End

Use Scenario: Driving NTSC/PAL composite video signals across 75 Ω coaxial cable with minimal differential gain/phase error.

IC Role / Device Role / Timing Role: Dual-channel buffer with G = +2, compensating for cable loss while maintaining <0.1% differential gain and <0.2° phase error.

Use Value: Eliminates external AC-coupling and DC restoration circuitry due to rail-to-rail I/O and 0.1% flatness to 16 MHz.

Use Scenario: Simultaneously conditioning two analog sensor outputs (e.g., pressure + temperature) before sampling by dual 16-bit SAR ADCs.

IC Role / Device Role / Timing Role: Dual-channel driver with matched propagation delay (<1 ns skew) and 35 ns 0.1% settling to prevent aperture uncertainty errors.

Use Value: Enables synchronized dual-channel acquisition at ≥1 MSPS without inter-channel timing mismatch or code-miss penalties.

Low-Voltage Instrumentation Amplifier Stage

Active Band-Pass Filter for Sensor Signal Conditioning

Use Scenario: Amplifying microvolt-level thermocouple or strain gauge outputs in battery-powered handheld meters operating from 3.3 V.

IC Role / Device Role / Timing Role: First-stage gain block with 4.3 nV/√Hz noise, 900 µV max offset, and 2.7 V minimum supply - preserves resolution in sub-16-bit systems.

Use Value: Achieves >100 dB SNR at 1 kHz with no external trimming or chopper stabilization, reducing BOM count and calibration complexity.

Use Scenario: Implementing a 100 kHz center-frequency, 10 kHz bandwidth active band-pass filter for ECG or vibration sensor signals.

IC Role / Device Role / Timing Role: Dual-op-amp topology (one as integrator, one as summer) leveraging 190 MHz GBW to maintain Q-factor stability across temperature.

Use Value: Delivers <0.5 dB passband ripple and −40 dB stopband rejection without component drift-induced center-frequency shift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed rail-to-rail amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADA4897-2	Lower noise (1 nV/√Hz), lower power (3.5 mA/ch), but 105 MHz bandwidth and no DISABLE/SELECT crossover control.	Better for ultra-low-noise, low-power precision apps; unsuitable where 190 MHz BW or distortion-tuned crossover is required.	Choose ADA4897-2 for battery-powered portable test equipment needing lowest noise; choose AD8028ARMZ when video bandwidth or programmable distortion optimization is mandatory.
LMH6629MA	Higher slew rate (1300 V/µs), wider bandwidth (1.5 GHz), but not rail-to-rail input and consumes 12.5 mA/ch.	Targeted at RF IF amplification and pulse applications; lacks rail-to-rail input needed for DC-coupled sensor interfaces.	Choose LMH6629MA for high-frequency pulse amplification above 100 MHz; choose AD8028ARMZ for DC-coupled, low-voltage, dual-channel precision signal conditioning.

Compared with ADA4897-2 and LMH6629MA, AD8028ARMZ uniquely combines 190 MHz bandwidth, rail-to-rail I/O, per-channel power-down, and user-selectable input crossover - making it the only option among the three for high-fidelity, low-voltage, dual-channel video or ADC driver applications requiring distortion minimization across varying common-mode ranges.

Availability

AD8028ARMZ is available at Aetrix Electronics and suitable for professional video systems, dual-channel data acquisition modules, and low-voltage industrial instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD8028ARMZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and consumer markets since 1965.

The AD8028ARMZ belongs to the AD8027/AD8028 family of high-speed rail-to-rail amplifiers designed specifically for applications demanding wide bandwidth, low distortion, and flexible input-stage control in low-voltage, dual-channel signal chains.

FAQ

What is the maximum supply voltage for AD8028ARMZ?

The absolute maximum supply voltage for AD8028ARMZ is 12.6 V, with recommended operating range from 2.7 V to 12 V. At 12 V operation, the device maintains full rail-to-rail input common-mode range (−12.2 V to +12.2 V) and output swing (within 50 mV of rails), enabling high dynamic range in wide-supply industrial systems. AD8028ARMZ quiescent current remains stable across this range, drawing 6.5–8.5 mA per amplifier.

Does AD8028ARMZ support single-supply operation?

Yes, AD8028ARMZ fully supports single-supply operation down to 2.7 V. With 5 V supply, its input common-mode voltage range extends from −0.2 V to +5.2 V and output swings from 0.04 V to 4.96 V - enabling true DC-coupled signal handling without level-shifting components. The DISABLE/SELECT pin functions identically in single-supply mode, allowing per-channel shutdown and crossover selection.

How does the DISABLE/SELECT pin affect AD8028ARMZ performance?

The DISABLE/SELECT pin on AD8028ARMZ provides dual functionality: pulling it low disables the amplifier (reducing quiescent current to 320–450 µA), while leaving it tristate or pulling it high selects the dominant input transistor pair (PNP or NPN) to minimize crossover distortion at specific common-mode voltages. This direct hardware control enables real-time optimization of SFDR in varying signal conditions without software intervention.

What is the guaranteed input offset voltage specification for AD8028ARMZ?

AD8028ARMZ guarantees a maximum input offset voltage of 900 µV at 25°C when the DISABLE/SELECT pin is high (NPN-active mode) and 800 µV when tristate or open (PNP-active mode). Over the full −40°C to +125°C range, the maximum offset is 900 µV (NPN mode) and 850 µV (PNP mode), with typical drift of 1.5–2 µV/°C - supporting precision DC-coupled applications without external nulling.

Can AD8028ARMZ drive heavy capacitive loads?

AD8028ARMZ is characterized to drive up to 20 pF capacitive load with ≤30% overshoot, verified across supply voltages and temperatures. For loads exceeding 20 pF, external series resistance (typically 10–50 Ω) at the output is recommended to maintain stability. Its 100 V/µs slew rate and 190 MHz bandwidth ensure minimal phase margin degradation when properly compensated, unlike many high-speed amplifiers that require complex isolation networks.

AD8028ARMZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 2

Output Type:: Rail-to-Rail

Slew Rate:: 100V/µs

Gain Bandwidth Product:: -

-3db Bandwidth:: 190 MHz

Current - Input Bias:: 4 µA

Voltage - Input Offset:: 200 µV

Current - Supply:: 6.5mA (x2 Channels)

Current - Output / Channel:: 120 mA

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 12 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-MSOP

AD8028ARMZ FAQ

1.How can I place an order for AD8028ARMZ through Aetrix?

Please submit a Request for Quotation (RFQ) for AD8028ARMZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AD8028ARMZ reliable?

The price and inventory of AD8028ARMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8028ARMZ is usually 5 days.

3.What payment methods are accepted for AD8028ARMZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8028ARMZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD8028ARMZ?

AD8028ARMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD8028ARMZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AD8028ARMZ?

For technical support, including AD8028ARMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8028ARMZ requirements.

6.How does Aetrix verify that AD8028ARMZ is sourced from the original manufacturer or authorized distributors?

All AD8028ARMZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD8028ARMZ meets industry standards.

7.What is the process for return or replacement of AD8028ARMZ?

All AD8028ARMZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8028ARMZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AD8028ARMZ part is unused and in its original packaging.

Return procedure for AD8028ARMZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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