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Analog Devices Inc. ADA4097-2BRZ-RL7
- Part No.:
- ADA4097-2BRZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4097-2BRZ-RL7.pdf
- Description:
- DUAL PRECISION, MICRO-POWER OTT
- Quantity:
- Payment:
- Shipping:
Inventory:4,912
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Product details
Overview
ADA4097-2BRZ-RL7 from Analog Devices is a dual-channel, precision, Over-The-Top™ operational amplifier designed for high-voltage, low-power sensor signal conditioning in harsh environments. It operates from +3 V to +50 V supply, delivers 130 kHz gain bandwidth, draws only 32.5 µA per channel, and supports common-mode inputs up to 70 V above the negative rail - enabling direct battery voltage monitoring and current sensing in industrial power systems.
For engineers reviewing the ADA4097-2BRZ-RL7 datasheet, ADA4097-2BRZ-RL7 pinout, ADA4097-2BRZ-RL7 application, or ADA4097-2BRZ-RL7 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions for the SOIC_N package, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The ADA4097-2BRZ-RL7 implements a proprietary Over-The-Top™ input stage that enables rail-to-rail and beyond common-mode operation (−VS − 0.1 V to −VS + 70 V), independent of +VS voltage. Its input protection tolerates ±80 V differential input without damage or dc accuracy degradation.
It features unity-gain stability, drives ≥20 mA per channel, and supports capacitive loads up to 200 pF. The dual-channel version includes separate shutdown control on each channel only in the 10-lead LFCSP variant - the ADA4097-2BRZ-RL7 (SOIC_N) lacks shutdown pins, confirming its fixed-active operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +3 V to +50 V - supports single-supply industrial monitoring without level-shifting circuitry. |
| Gain Bandwidth Product | 130 kHz typical - sufficient for DC-coupled sensor amplification and slow-loop feedback in 4–20 mA transmitters. |
| Input Offset Voltage | ±60 µV max (B grade) - enables sub-0.1% accuracy in precision current sense applications at room temperature. |
| Common-Mode Input Range | −VS − 0.1 V to −VS + 70 V - allows direct high-side sensing of 48 V bus voltages referenced to ground. |
| Supply Current per Channel | 32.5 µA typical - enables always-on monitoring in battery-powered equipment with multi-year runtime. |
| CMRR | 120 dB min over full common-mode range - rejects noise from noisy power rails in motor drive front-ends. |
| PSRR | 123 dB min (3 V to ±25 V) - maintains dc accuracy despite supply ripple in unregulated industrial supplies. |
Pinout & Package
The ADA4097-2BRZ-RL7 is packaged in an 8-lead standard small outline (SOIC_N) with exposed pad not connected internally; no thermal pad connection required. Pinout matches Figure 5 and Table 7 of Rev. A datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Output of Channel 1 - rail-to-rail capable, sinks/source up to 20 mA, high-impedance when externally disabled (not supported in SOIC_N). |
| 2 | −IN1 | Inverting input of Channel 1 - part of Over-The-Top™ input pair; withstands >70 V above −VS without phase reversal. |
| 3 | +IN1 | Noninverting input of Channel 1 - matched bias current (<0.3 nA) enables high-impedance sensor interfacing. |
| 4 | −VS | Negative supply rail - must be bypassed with ≥0.1 µF capacitor to low-impedance ground plane. |
| 5 | +IN2 | Noninverting input of Channel 2 - electrically isolated from Channel 1; supports dual-sensor conditioning on one die. |
| 6 | −IN2 | Inverting input of Channel 2 - identical Over-The-Top™ robustness as Channel 1; no crosstalk above 115 dB at 1 kHz. |
| 7 | VOUT2 | Output of Channel 2 - independently driven; no internal coupling; supports separate load isolation. |
| 8 | +VS | Positive supply rail - accepts up to +50 V dc; requires ≥0.1 µF local bypassing for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top™ input stage | Enables direct sensing of signals referenced to high-voltage rails (e.g., battery cathode monitoring) without external level shifters. |
| ±80 V differential input tolerance | Prevents latch-up or parametric shift during transient overvoltage events in motor control or power supply fault conditions. |
| 120 dB CMRR over full VCM range | Maintains accuracy in presence of large common-mode noise from switching regulators or EMI-coupled cables. |
| 6 Hz 1/f noise corner | Minimizes low-frequency drift in precision DC measurements such as strain gauge or thermopile amplification. |
| −55°C to +150°C operating range (H grade) | Validated for under-hood automotive, downhole oil/gas, and industrial furnace control applications. |
Applications
| Industrial Sensor Conditioning | Battery & Power Supply Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level output from RTD, thermocouple, or bridge sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision front-end amplifier with Over-The-Top™ inputs accepting sensor excitation referenced to noisy 24 V supply rails. Use Value: Eliminates need for isolated power or level-shifting ICs, reducing BOM count and layout area while maintaining <0.05% linearity error. |
Use Scenario: High-side current sensing in 48 V telecom rectifiers or EV battery management system (BMS) cell monitors. IC Role / Device Role / Timing Role: Differential amplifier measuring voltage drop across shunt resistor placed between battery positive terminal and load. Use Value: Supports direct connection to 48 V bus without attenuation networks; 70 V VCM headroom ensures operation during load dump transients. |
| 4–20 mA Transmitter Front-End | Front-End Amplifier in Abusive Environments |
|
Use Scenario: Converting sensor voltage to loop current using voltage-controlled current source in hazardous location transmitters. IC Role / Device Role / Timing Role: Stable, low-drift gain stage setting loop current reference; drives voltage-to-current converter input. Use Value: 32.5 µA quiescent current enables loop-powered designs; 130 kHz GBP ensures stable closed-loop response with minimal phase lag. |
Use Scenario: Signal conditioning in oilfield downhole tools exposed to extreme temperature cycling and ESD-prone cable harnesses. IC Role / Device Role / Timing Role: Robust analog interface protecting downstream ADCs from overvoltage, reverse polarity, and HBM/FICDM discharge events. Use Value: ±2 kV HBM and ±1.25 kV FICDM ratings meet IEC 61000-4-2 Level 4; input stage survives repeated 80 V differential abuse without calibration loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6015IMS8#PBF | Wider VCM (−VS to +76 V), higher GBP (1.3 MHz), but 125 µA supply current - 4× higher than ADA4097-2BRZ-RL7. | Used where higher speed is needed (e.g., fast-loop motor control), but unsuitable for ultra-low-power always-on monitoring. | Select LT6015 when bandwidth >1 MHz is required and power budget allows >100 µA/channel. |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, but limited VCM (−0.1 V to +VDD − 1.5 V) and max supply = 5.5 V. | Suitable for low-voltage precision instrumentation (e.g., portable medical devices), but cannot replace ADA4097-2BRZ-RL7 in high-voltage sensing. | Choose OPA2333AIDR only for sub-5 V, sub-1 µV/°C drift applications - not for 48 V bus monitoring or Over-The-Top™ use cases. |
Compared with LT6015IMS8#PBF and OPA2333AIDR, the ADA4097-2BRZ-RL7 uniquely balances ultra-low power (32.5 µA), 70 V Over-The-Top™ input capability, and 130 kHz bandwidth - making it irreplaceable in high-voltage, battery-constrained industrial sensing where neither speed nor zero-drift is the primary requirement.
Availability
ADA4097-2BRZ-RL7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, battery and power supply monitoring, and 4–20 mA transmitter designs requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4097-2BRZ-RL7 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADA4097 family was engineered specifically for ruggedized precision signal conditioning in abusive industrial environments - emphasizing Over-The-Top™ input operation, wide supply range, and extreme temperature reliability over speed or zero-drift performance.
FAQ
Does the ADA4097-2BRZ-RL7 include shutdown functionality?
No, the ADA4097-2BRZ-RL7 in the 8-lead SOIC_N package does not feature shutdown pins. Shutdown is only available on the 10-lead LFCSP variant (ADA4097-2ACPZ-RL7) with dedicated SHDN1/SHDN2 pins. The ADA4097-2BRZ-RL7 operates continuously when powered and draws 32.5 µA per channel in active mode.
What is the maximum common-mode input voltage for the ADA4097-2BRZ-RL7?
The ADA4097-2BRZ-RL7 supports a guaranteed common-mode input range of −VS − 0.1 V to −VS + 70 V. This means with −VS tied to ground, inputs can safely operate up to +70 V - enabling direct sensing of 48 V or 60 V battery systems without external attenuation or level shifting.
Can the ADA4097-2BRZ-RL7 drive a 10 kΩ load with full rail-to-rail swing?
Yes. The ADA4097-2BRZ-RL7 delivers rail-to-rail output swing into loads ≥10 kΩ. At ISOURCE = 5 mA, the high-side swing is within 700 mV of +VS; at ISINK = 5 mA, the low-side swing is within 400 mV of −VS. For true rail-to-rail performance, keep load currents ≤1 mA or use lighter loading.
Is the ADA4097-2BRZ-RL7 qualified for automotive applications?
The ADA4097-2BRZ-RL7 is not AEC-Q200 qualified. However, its H-grade option supports −55°C to +150°C operation and meets ±2 kV HBM ESD - making it suitable for under-hood industrial and commercial automotive-adjacent systems (e.g., off-highway vehicle controllers), though not for safety-critical ADAS or infotainment ECUs requiring formal qualification.
What package type is used by the ADA4097-2BRZ-RL7?
The ADA4097-2BRZ-RL7 uses an 8-lead standard small outline integrated circuit (SOIC_N) package, 3.9 mm × 4.9 mm body size, with gull-wing leads. It is distinct from the MSOP and LFCSP variants - no thermal pad, no shutdown pins, and pinout per Table 7 of the Rev. A datasheet.
ADA4097-2BRZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- -
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 130 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 42µA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 50 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4097-2BRZ-RL7 FAQ
1.How can I place an order for ADA4097-2BRZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4097-2BRZ-RL7 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 ADA4097-2BRZ-RL7 reliable?
The price and inventory of ADA4097-2BRZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4097-2BRZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADA4097-2BRZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4097-2BRZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4097-2BRZ-RL7?
ADA4097-2BRZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4097-2BRZ-RL7 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 ADA4097-2BRZ-RL7?
For technical support, including ADA4097-2BRZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4097-2BRZ-RL7 requirements.
6.How does Aetrix verify that ADA4097-2BRZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADA4097-2BRZ-RL7 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 ADA4097-2BRZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADA4097-2BRZ-RL7?
All ADA4097-2BRZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4097-2BRZ-RL7, 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 ADA4097-2BRZ-RL7 part is unused and in its original packaging.
Return procedure for ADA4097-2BRZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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