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

Analog Devices Inc. ADA4897-2TRMZ-EP

Name: ADA4897-2TRMZ-EP
Brand: Analog Devices Inc.
SKU: ADA4897-2TRMZ-EP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4897-2TRMZ-EP

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: ADA4897-2TRMZ-EP.pdf

Description:: IC OPAMP VFB 2 CIRCUIT 10MSOP

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Product details

Overview

ADA4897-2TRMZ-EP from Analog Devices is a dual, unity-gain stable, rail-to-rail output voltage feedback amplifier optimized for low-noise, high-speed signal conditioning in precision analog systems. It delivers 1 nV/√Hz input voltage noise at 100 kHz, 230 MHz −3 dB bandwidth (G = +1), 120 V/μs slew rate, and operates from ±5 V or single 3 V to 10 V supplies across −55°C to +125°C. It serves as an ADC driver in high-resolution data acquisition systems requiring wide dynamic range and fast settling.

For engineers reviewing the ADA4897-2TRMZ-EP datasheet, ADA4897-2TRMZ-EP pinout, ADA4897-2TRMZ-EP application, or ADA4897-2TRMZ-EP equivalent, key selection criteria include its 45 ns 0.1% settling time, dual-channel disable control, enhanced product qualification for aerospace/defense, and verified performance under extended temperature and supply-voltage variations.

Technical Context

The ADA4897-2TRMZ-EP uses Analog Devices' proprietary SiGe bipolar process to achieve simultaneous low 1/f noise (2.4 nV/√Hz at 10 Hz) and wideband noise (1 nV/√Hz at 100 kHz), enabling high-fidelity amplification of low-level signals without compromising speed. Its voltage-feedback architecture supports stable operation at G = +1 with 230 MHz bandwidth and 120 V/μs slew rate.

Each amplifier features independent disable pins (DISABLE1 and DISABLE2), allowing selective power-down to reduce quiescent current from 3 mA per channel to ≤0.25 mA. The rail-to-rail output swing (e.g., 4.85 V to −4.85 V on ±5 V supplies, RL = 1 kΩ) ensures full utilization of ADC input ranges in mixed-signal systems.

Key Specifications

Parameter	Value and Actual Design Meaning
−3 dB Bandwidth	230 MHz at G = +1, 0.02 V_p-p - enables baseband signal amplification up to UHF frequencies without gain peaking.
Slew Rate	120 V/μs - supports clean reproduction of fast transient signals such as pulse-shaped sensor outputs or DAC steps.
Input Voltage Noise	1 nV/√Hz at 100 kHz - minimizes added noise in high-frequency preamplifier stages before ADC sampling.
Settling Time (0.1%)	45 ns at G = +2 - ensures accurate digitization of rapidly updated signals in time-interleaved or high-throughput ADC systems.
Quiescent Current	3.0 mA per amplifier - balances low-power operation with high-speed performance for battery- or thermally constrained designs.
Operating Temperature	−55°C to +125°C - qualified for mission-critical aerospace, defense, and downhole industrial applications per AQEC standard.
Rail-to-Rail Output	Swings within 150 mV of rails (±5 V, RL = 1 kΩ) - maximizes signal headroom and SNR when driving 16–18-bit ADCs.

Pinout & Package

ADA4897-2TRMZ-EP is housed in a 10-lead MSOP package (RM-10), JEDEC MO-187-BA compliant, with exposed paddle for thermal enhancement. Pin pitch is 0.5 mm; body dimensions are 3.00 mm × 3.00 mm × 1.10 mm max height.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT1)	Amplifier 1 output	Drives external load or ADC input; rail-to-rail capable with 80 mA drive strength.
2 (−IN1)	Inverting input, Amp 1	Accepts feedback network; differential input impedance is 10 kΩ.
3 (+IN1)	Noninverting input, Amp 1	High-impedance node (10 MΩ common-mode); supports DC-coupled sensor interfaces.
4 (−VS)	Negative supply rail	Shared negative rail for both amplifiers; supports split or single-supply operation.
5 (DISABLE1)	Enable/disable control, Amp 1	Logic-high (>+VS − 0.5 V) enables; logic-low (<−VS + 2 V) disables amp with 12 μs turn-off.
6 (DISABLE2)	Enable/disable control, Amp 2	Independent control allows asymmetric power management in multi-channel signal chains.
7 (+IN2)	Noninverting input, Amp 2	Electrically isolated from Amp 1 inputs; enables dual-path signal conditioning.
8 (−IN2)	Inverting input, Amp 2	Supports individual feedback networks; no crosstalk specified between channels.
9 (OUT2)	Amplifier 2 output	Matches OUT1 performance; usable for differential driver or parallel channel buffering.
10 (+VS)	Positive supply rail	Shared positive rail; PSRR >120 dB ensures immunity to supply ripple in noisy environments.

Key Features

Feature	Design Value
Low 1/f noise	2.4 nV/√Hz at 10 Hz - preserves signal integrity in low-frequency sensor front-ends (e.g., piezoelectric, strain gauge).
Independent disable control	Dual DISABLE pins (pins 5 & 6) enable per-amplifier power gating - reduces system idle power by >90% without PCB redesign.
Enhanced product qualification	AQEC-compliant manufacturing baseline with single fab/test site - ensures traceable lot history and long-term supply continuity for defense programs.
Rail-to-rail output swing	4.96 V to −4.97 V on ±5 V (RL = 1 kΩ) - eliminates need for level-shifting circuitry when interfacing with 5 V ADCs.
Wide supply range	3 V to 10 V operation - supports direct integration into legacy 5 V systems and modern low-voltage 3.3 V or 3 V platforms.

Applications

Ultrasound Signal Chain	High-Resolution ADC Driver
Use Scenario: Amplifying weak echo signals from piezoelectric transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: Low-noise preamplifier and anti-aliasing filter driver with <45 ns settling to support 2.5 MSPS ADC sampling. Use Value: 1 nV/√Hz noise floor preserves SNR of microvolt-level echoes; rail-to-rail output fully utilizes 16-bit ADC input range.	Use Scenario: Driving AD7986 (18-bit, 2 MSPS) in precision test equipment requiring minimal code-width uncertainty. IC Role / Device Role / Timing Role: High-fidelity buffer isolating ADC input from source impedance variations while maintaining phase linearity. Use Value: 230 MHz bandwidth and 0.1% settling in 45 ns ensure accurate capture of fast step transitions without aperture jitter penalty.
PLL Loop Filter	DAC Output Buffer
Use Scenario: Implementing active loop filters in frequency synthesizers for radar and comms systems operating at 1–5 MHz. IC Role / Device Role / Timing Role: Low-distortion integrator stage shaping closed-loop response with minimal phase lag. Use Value: −115 dBc SFDR at 100 kHz suppresses spurious tones that degrade PLL spectral purity and lock stability.	Use Scenario: Buffering current-output DACs (e.g., AD5791) in calibration-grade instrumentation where offset drift must be minimized. IC Role / Device Role / Timing Role: Precision voltage follower with <0.5 mV max offset and 0.2 µV/°C drift to preserve absolute accuracy. Use Value: Input offset voltage drift specification ensures <1 LSB error over −55°C to +125°C in 18-bit systems.

Ultrasound Signal Chain

High-Resolution ADC Driver

Use Scenario: Amplifying weak echo signals from piezoelectric transducers in portable ultrasound machines.

IC Role / Device Role / Timing Role: Low-noise preamplifier and anti-aliasing filter driver with <45 ns settling to support 2.5 MSPS ADC sampling.

Use Value: 1 nV/√Hz noise floor preserves SNR of microvolt-level echoes; rail-to-rail output fully utilizes 16-bit ADC input range.

Use Scenario: Driving AD7986 (18-bit, 2 MSPS) in precision test equipment requiring minimal code-width uncertainty.

IC Role / Device Role / Timing Role: High-fidelity buffer isolating ADC input from source impedance variations while maintaining phase linearity.

Use Value: 230 MHz bandwidth and 0.1% settling in 45 ns ensure accurate capture of fast step transitions without aperture jitter penalty.

PLL Loop Filter

DAC Output Buffer

Use Scenario: Implementing active loop filters in frequency synthesizers for radar and comms systems operating at 1–5 MHz.

IC Role / Device Role / Timing Role: Low-distortion integrator stage shaping closed-loop response with minimal phase lag.

Use Value: −115 dBc SFDR at 100 kHz suppresses spurious tones that degrade PLL spectral purity and lock stability.

Use Scenario: Buffering current-output DACs (e.g., AD5791) in calibration-grade instrumentation where offset drift must be minimized.

IC Role / Device Role / Timing Role: Precision voltage follower with <0.5 mV max offset and 0.2 µV/°C drift to preserve absolute accuracy.

Use Value: Input offset voltage drift specification ensures <1 LSB error over −55°C to +125°C in 18-bit systems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed, low-noise amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADA4899-1	Single-channel, 600 MHz bandwidth, 1.4 nV/√Hz noise at 1 kHz - higher speed but higher power (9.5 mA) and no disable function.	Best suited for single-ended, ultra-wideband applications where power and channel count are secondary to bandwidth.	Select ADA4899-1 only if >230 MHz bandwidth is required and dual-channel operation is unnecessary.
AD8099	Single-channel, 510 MHz bandwidth, 3 nV/√Hz noise at 1 kHz, no extended temperature rating - commercial grade only (−40°C to +85°C).	Applicable in cost-sensitive, non-military industrial systems where extended temp and low noise are not mandatory.	Choose AD8099 only for commercial-grade designs with relaxed noise and temperature requirements.

Compared with ADA4897-2TRMZ-EP, ADA4899-1 trades dual-channel flexibility and power efficiency for higher bandwidth, while AD8099 sacrifices military-grade reliability and low-noise performance for lower cost and wider commercial availability.

Availability

ADA4897-2TRMZ-EP is available at Aetrix Electronics and suitable for aerospace avionics, defense radar signal processing, and downhole oilfield instrumentation requiring stable component supply across extended temperature and long lifecycle commitments.

Supply support for ADA4897-2TRMZ-EP 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, headquartered in Norwood, MA.

The ADA4897-EP series was developed specifically for defense, aerospace, and industrial applications demanding extended temperature operation, controlled manufacturing baselines, and AQEC-compliant quality assurance.

FAQ

What is the maximum operating junction temperature for ADA4897-2TRMZ-EP?

The ADA4897-2TRMZ-EP has a maximum junction temperature of 150°C, beyond which permanent parametric shifts may occur. Its θ_JA is 210°C/W in the 10-lead MSOP package, so thermal design must limit ambient temperature and power dissipation accordingly-especially under ±5 V operation at full 6 mA total quiescent current.

Does ADA4897-2TRMZ-EP support single-supply operation?

Yes, ADA4897-2TRMZ-EP operates from a single 3 V to 10 V supply. With −VS tied to ground, its input common-mode range extends from 0.1 V to 2.1 V (at +3 V) or 0.1 V to 4.1 V (at +5 V), and rail-to-rail output swings from near ground to within 150 mV of +VS - making it suitable for single-supply ADC drivers and sensor interfaces.

How does the DISABLE pin function on ADA4897-2TRMZ-EP?

ADA4897-2TRMZ-EP has two independent DISABLE pins (pins 5 and 6). When pulled below +VS − 2 V (or below −VS + 2 V in single-supply mode), each amplifier enters low-power state with quiescent current ≤0.25 mA. Turn-on time is 0.25 μs; turn-off time is 12 μs - enabling rapid channel gating in time-multiplexed signal paths without disrupting adjacent channels.

Is ADA4897-2TRMZ-EP pin-compatible with any commercial-grade variants?

No, ADA4897-2TRMZ-EP is not pin-compatible with the commercial ADA4897-2ARMZ. While both use the 10-lead MSOP package, the EP version includes additional die enhancements and qualification testing but retains identical pinout, electrical behavior, and footprint - allowing drop-in replacement in existing layouts when extended temperature and AQEC compliance are required.

What is the capacitive load drive capability of ADA4897-2TRMZ-EP?

ADA4897-2TRMZ-EP drives up to 39 pF with ≤30% overshoot at G = +2, as specified in the ±5 V supply tables. This supports direct connection to ADC input capacitors and short PCB traces without external isolation resistors - critical for preserving bandwidth and settling performance in high-speed data acquisition systems using the ADA4897-2TRMZ-EP.

ADA4897-2TRMZ-EP 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:: Voltage Feedback

Number of Circuits:: 2

Output Type:: Rail-to-Rail

Slew Rate:: 120V/µs

Gain Bandwidth Product:: 90 MHz

-3db Bandwidth:: 230 MHz

Current - Input Bias:: 4 µA

Voltage - Input Offset:: 28 µV

Current - Supply:: 3mA (x2 Channels)

Current - Output / Channel:: 80 mA

Voltage - Supply Span (Min):: 3 V

Voltage - Supply Span (Max):: 10 V

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-MSOP

ADA4897-2TRMZ-EP FAQ

1.How can I place an order for ADA4897-2TRMZ-EP through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4897-2TRMZ-EP 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 ADA4897-2TRMZ-EP reliable?

The price and inventory of ADA4897-2TRMZ-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4897-2TRMZ-EP is usually 5 days.

3.What payment methods are accepted for ADA4897-2TRMZ-EP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4897-2TRMZ-EP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4897-2TRMZ-EP?

ADA4897-2TRMZ-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4897-2TRMZ-EP 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 ADA4897-2TRMZ-EP?

For technical support, including ADA4897-2TRMZ-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4897-2TRMZ-EP requirements.

6.How does Aetrix verify that ADA4897-2TRMZ-EP is sourced from the original manufacturer or authorized distributors?

All ADA4897-2TRMZ-EP 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 ADA4897-2TRMZ-EP meets industry standards.

7.What is the process for return or replacement of ADA4897-2TRMZ-EP?

All ADA4897-2TRMZ-EP units undergo pre-shipment inspection (PSI). If there is an issue with ADA4897-2TRMZ-EP, 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 ADA4897-2TRMZ-EP part is unused and in its original packaging.

Return procedure for ADA4897-2TRMZ-EP:

1.Submit a request within 90 days.

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

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