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Analog Devices Inc. ADA4098-1BUJZ-RL7
- Part No.:
- ADA4098-1BUJZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
ADA4098-1BUJZ-RL7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT6
- Quantity:
- Payment:
- Shipping:
Inventory:799
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Product details
Overview
ADA4098-1BUJZ-RL7 from Analog Devices is a single-channel, precision rail-to-rail input/output operational amplifier with Over-The-Top™ architecture, enabling operation with common-mode inputs up to 70 V above the negative supply (−VS + 70 V). It delivers 1.05 MHz gain bandwidth, 0.85 V/µs slew rate (at ±25 V), ±35 µV max input offset voltage, and draws only 165 µA per channel - optimized for high-voltage industrial current sensing and battery monitoring in harsh environments.
For engineers reviewing the ADA4098-1BUJZ-RL7 datasheet, ADA4098-1BUJZ-RL7 pinout, ADA4098-1BUJZ-RL7 application, or ADA4098-1BUJZ-RL7 equivalent, this device is selected for abusive-environment signal conditioning where input overvoltage tolerance, wide supply range (3 V to 50 V), ultra-low power, and guaranteed phase reversal–free operation are mandatory design requirements.
Technical Context
The ADA4098-1BUJZ-RL7 implements an Over-The-Top™ input stage that extends the common-mode range beyond the negative rail by 70 V independent of the positive supply, enabling direct sensing of high-side currents and ground-referenced signals in systems with floating or elevated grounds. Its input protection tolerates ±80 V differential voltage without damage or dc accuracy degradation.
It features a shutdown pin (SHDN) with logic thresholds referenced to −VS (active below −VS + 0.5 V, shutdown above −VS + 1.5 V), reducing supply current to ≤20 µA while placing the output in high-impedance state. The amplifier is unity-gain stable and drives capacitive loads up to 200 pF and resistive loads up to 20 mA per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 50 V continuous; supports single-supply industrial monitoring and dual-supply ±25 V operation. |
| Common-Mode Input Range | −VS − 0.1 V to −VS + 70 V; enables direct high-side current sense without level-shifting circuitry. |
| Input Offset Voltage (max) | ±35 µV (B grade); ensures <0.1% error in precision 4 mA–20 mA transmitter feedback loops at room temperature. |
| Gain Bandwidth Product | 1.05 MHz (typical); sufficient for closed-loop response in battery voltage monitoring with <1 µs settling. |
| Slew Rate | 0.85 V/µs (at ΔVOUT = 25 V); supports fast transient detection in overvoltage protection circuits. |
| Supply Current per Channel | 165 µA (typical); enables always-on sensing in energy-constrained remote industrial nodes. |
| CMRR / PSRR | ≥120 dB / ≥123 dB; maintains accuracy in noisy factory-floor power rails and unregulated supplies. |
Pinout & Package
The ADA4098-1BUJZ-RL7 is housed in a 6-lead thin small outline transistor (TSOT) package (UJ-6), with exposed pad thermally connected to −VS. This compact 1.5 mm × 1.5 mm footprint supports high-density PCB layouts in space-constrained sensor modules and power management ICs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Amplifier Output | Delivers rail-to-rail output swing; capable of sourcing/sinking 20 mA; high-impedance during shutdown. |
| 2 - −VS | Negative Power Supply | Reference for all internal biasing; must be bypassed with ≥0.1 µF capacitor to low-impedance ground plane. |
| 3 - +IN | Noninverting Input | High-impedance node (>1 GΩ common-mode resistance); accepts Over-The-Top voltages up to −VS + 70 V. |
| 4 - −IN | Inverting Input | Differential input node; supports precision current-sense resistor placement on high-side or low-side. |
| 5 - SHDN | Shutdown Control | −VS-referenced logic input; asserts shutdown when >−VS + 1.5 V; floating or tied to −VS enables operation. |
| 6 - +VS | Positive Power Supply | Primary supply rail; requires ≥0.1 µF local bypass capacitor; supports up to 50 V continuous operation. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top™ Input Stage | Enables direct sensing of signals referenced to voltages up to 70 V above −VS - eliminates need for external level shifters in high-side current monitors. |
| Input Overvoltage Tolerance | Withstands ±80 V differential input without damage or parametric shift - critical for fault-tolerant industrial I/O protection. |
| No Phase Reversal Under Overdrive | Guaranteed behavior prevents latch-up or erroneous control signals when inputs exceed common-mode range - essential for safety-critical monitoring. |
| Robust ESD Protection | ±3 kV HBM and ±1.25 kV FICDM ratings - exceeds IEC 61000-4-2 Level 4 for system-level reliability in field-deployed equipment. |
| Wide Temperature Operation | Specified from −55°C to +150°C (H grade); supports under-hood automotive, downhole oil/gas, and industrial furnace applications. |
Applications
| Industrial Sensor Conditioning | Supply Current Sensing |
|---|---|
Use Scenario: Amplifying low-level mV outputs from RTDs, strain gauges, or pressure transducers in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision front-end amplifier with rail-to-rail I/O and Over-The-Top input, rejecting common-mode noise on long sensor cables. Use Value: Maintains <±0.01% linearity over −40°C to +125°C due to ±0.5 µV/°C max offset drift and 126 dB min open-loop gain. |
Use Scenario: High-side current sensing in 24 V DC power distribution units for predictive maintenance alerts. IC Role / Device Role / Timing Role: Current-to-voltage converter with input common-mode range extending to +70 V above ground - measures load current without shunt relocation. Use Value: Enables accurate 0.1% full-scale measurement across 100:1 dynamic range using a single 10 mΩ shunt, even with supply ripple. |
| Battery & Power Supply Monitoring | 4 mA to 20 mA Transmitters |
Use Scenario: Real-time voltage and state-of-charge monitoring in 48 V telecom backup batteries and EV auxiliary systems. IC Role / Device Role / Timing Role: High-impedance buffer and scaling amplifier for battery cell stack monitoring, operating directly from battery rail. Use Value: Operates from 3 V to 50 V supply with 165 µA quiescent current - extends runtime in always-on battery guard circuits. |
Use Scenario: Loop-powered 4 mA–20 mA transmitter front-end in hazardous-area process instrumentation (e.g., pressure, flow). IC Role / Device Role / Timing Role: Precision op amp in two-wire transmitter I/V conversion and sensor excitation stages. Use Value: ±35 µV max offset and 120 dB CMRR ensure <0.05% total error over 4–20 mA span, meeting HART and FOUNDATION Fieldbus accuracy specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision high-voltage op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6015IMS8#PBF | Wider supply range (4.5 V to 50 V), lower input bias current (±25 pA), but no Over-The-Top input - common-mode limited to −VS + 5 V. | Limited to low-common-mode industrial sensors; unsuitable for high-side current sensing above −VS + 5 V. | Select when ultra-low IB dominates over extended common-mode range; verify input voltage constraints match system topology. |
| OPA192IDBVR | Lower offset drift (±0.2 µV/°C), higher GBP (10 MHz), but narrower common-mode range (−0.1 V to +VS − 1.5 V) and no Over-The-Top capability. | Applicable only in mid-rail or low-side sensing; cannot replace ADA4098-1BUJZ-RL7 in −VS + 70 V input scenarios. | Choose for high-speed precision buffering where common-mode stays within rail limits; avoid for abusive-environment high-side sensing. |
Compared with LT6015IMS8#PBF and OPA192IDBVR, the ADA4098-1BUJZ-RL7 uniquely combines 70 V Over-The-Top input tolerance, 50 V supply rating, and sub-200 µA quiescent current - making it irreplaceable in high-side current monitor designs requiring both robustness and low power.
Availability
ADA4098-1BUJZ-RL7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, battery monitoring, and 4 mA–20 mA transmitter applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4098-1BUJZ-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.
The ADA4098-1BUJZ-RL7 belongs to Analog Devices' Over-The-Top™ precision op amp family, engineered specifically for signal conditioning in electrically abusive environments - including high-voltage industrial I/O, battery management, and process control systems.
FAQ
What is the maximum common-mode input voltage supported by the ADA4098-1BUJZ-RL7?
The ADA4098-1BUJZ-RL7 supports a guaranteed common-mode input range from −VS − 0.1 V to −VS + 70 V, verified across temperature and supply conditions. This Over-The-Top™ capability allows direct connection to high-side shunts or sensors operating up to 70 V above the negative supply rail - a key differentiator versus standard rail-to-rail op amps. The ADA4098-1BUJZ-RL7 maintains specified performance throughout this range without phase reversal or accuracy loss.
Does the ADA4098-1BUJZ-RL7 require external level-shifting circuitry for high-side current sensing?
No, the ADA4098-1BUJZ-RL7 does not require external level-shifting circuitry for high-side current sensing. Its Over-The-Top™ input architecture inherently accepts common-mode voltages up to −VS + 70 V, enabling direct interface with shunt resistors placed between the load and positive supply rail. This eliminates added components, board area, and error sources - simplifying design and improving accuracy in applications like 48 V DC power monitoring and motor drive current feedback.
What is the shutdown current consumption of the ADA4098-1BUJZ-RL7?
The ADA4098-1BUJZ-RL7 draws ≤20 µA per channel in shutdown mode when the SHDN pin is driven above −VS + 1.5 V. This ultra-low shutdown current enables energy-efficient power gating in battery-backed systems and intermittent-sensing architectures. During shutdown, the output enters a high-impedance state, preventing loading of downstream circuitry - a critical feature for multiplexed sensor front-ends and shared analog buses.
Can the ADA4098-1BUJZ-RL7 drive capacitive loads, and if so, up to what value?
Yes, the ADA4098-1BUJZ-RL7 is designed to drive capacitive loads up to 200 pF while maintaining stability and specified phase margin (≥55°). This capability supports direct connection to anti-aliasing filters, long PCB traces, and ADC input buffers without external isolation resistors. For loads exceeding 200 pF, a small series resistor (e.g., 10 Ω–50 Ω) at the output is recommended to preserve stability - confirmed in the device's "Circuit Layout Considerations" section of the datasheet.
Is the ADA4098-1BUJZ-RL7 qualified for operation at −55°C to +150°C?
Yes, the ADA4098-1BUJZ-RL7 is rated for operation from −55°C to +150°C in its H-grade configuration, with full parametric specifications guaranteed across this range. This includes key parameters such as input offset voltage (±200 µV max), offset drift (±0.8 µV/°C max), and PSRR (≥120 dB). The device is validated for 1000+ hours at TA = 150°C under ±25 V supply - confirming suitability for under-hood automotive, downhole tools, and industrial furnace control applications.
ADA4098-1BUJZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.85V/µs
- Gain Bandwidth Product:
- 1.05 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 350 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 195µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 50 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-6
ADA4098-1BUJZ-RL7 FAQ
1.How can I place an order for ADA4098-1BUJZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4098-1BUJZ-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 ADA4098-1BUJZ-RL7 reliable?
The price and inventory of ADA4098-1BUJZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4098-1BUJZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADA4098-1BUJZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4098-1BUJZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4098-1BUJZ-RL7?
ADA4098-1BUJZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4098-1BUJZ-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 ADA4098-1BUJZ-RL7?
For technical support, including ADA4098-1BUJZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4098-1BUJZ-RL7 requirements.
6.How does Aetrix verify that ADA4098-1BUJZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADA4098-1BUJZ-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 ADA4098-1BUJZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADA4098-1BUJZ-RL7?
All ADA4098-1BUJZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4098-1BUJZ-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 ADA4098-1BUJZ-RL7 part is unused and in its original packaging.
Return procedure for ADA4098-1BUJZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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