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Analog Devices Inc. ADA4098-2BCPZ
- Part No.:
- ADA4098-2BCPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad, CSP
- Datasheet:
-
ADA4098-2BCPZ.pdf
- Description:
- DUAL PRECISION, 1MHZ, 1V/US OTT
- Quantity:
- Payment:
- Shipping:
Inventory:236
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Product details
Overview
ADA4098-2BCPZ from Analog Devices is a dual-channel, precision, Over-The-Top™ operational amplifier designed for high-voltage, abusive-environment signal conditioning. It operates from +3 V to +50 V (±25 V), delivers 1.05 MHz gain bandwidth, draws only 165 µA per channel, and maintains ±35 µV max input offset voltage - enabling accurate current sensing in battery monitoring and industrial sensor front-ends.
For engineers reviewing the ADA4098-2BCPZ datasheet, ADA4098-2BCPZ pinout, ADA4098-2BCPZ application, or ADA4098-2BCPZ equivalent, this page provides verified specifications, SOIC_N package mapping, dual-channel shutdown control logic, robust ±3 kV HBM ESD rating, and real-world use cases in overvoltage-tolerant transmitters and supply-current sensing circuits.
Technical Context
The ADA4098-2BCPZ implements an Over-The-Top™ input stage that extends common-mode range to −VS − 0.1 V up to −VS + 70 V, independent of +VS, enabling ground-sensing and high-side current measurement without level-shifting. Its rail-to-rail input and output stages support full dynamic range across 3 V to 50 V supplies.
Each channel features independent shutdown control (SHDN1/SHDN2), 0.85 V/µs slew rate at ΔVOUT = 25 V, and 126 dB minimum large-signal voltage gain with 120 dB CMRR maintained across the full −0.1 V to +70 V common-mode range - critical for precision amplification in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +3 V to +50 V (±25 V for PSRR spec); supports single-supply battery monitoring and split-supply industrial control rails. |
| Gain Bandwidth Product | 1.05 MHz typical; enables stable unity-gain operation and accurate amplification of low-frequency sensor signals up to ~1 MHz. |
| Input Offset Voltage | ±35 µV maximum (B grade); ensures <0.001% error in 1 V full-scale current sense applications. |
| Common-Mode Input Range | −VS − 0.1 V to −VS + 70 V; allows direct connection to 48 V bus or battery terminals without external attenuators. |
| Supply Current per Channel | 165 µA typical; enables always-on monitoring in power-constrained systems like remote IoT sensors. |
| ESD Rating | ±3 kV HBM, ±1.25 kV FICDM; meets industrial IEC 61000-4-2 system-level robustness requirements. |
| Operating Temperature | −55°C to +150°C (H grade); qualified for under-hood automotive and downhole industrial deployments. |
Pinout & Package
The ADA4098-2BCPZ is packaged in an 8-lead standard small outline (SOIC_N) with exposed pad (EPAD) connected to −VS for thermal and noise performance. Pin 1 is VOUT1; pin 7 is VOUT2; pins 4 and 8 are dedicated power rails (−VS and +VS); shutdown is not implemented on this variant - SHDN1/SHDN2 pins are absent in SOIC_N.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Channel 1 output; rail-to-rail capable, drives ≥20 mA, high-impedance during shutdown (not applicable in SOIC_N). |
| 2 | −IN1 | Inverting input for Channel 1; differential input resistance >1 MΩ, tolerant of ±80 V differential stress. |
| 3 | +IN1 | Noninverting input for Channel 1; common-mode range extends 70 V above −VS for true Over-The-Top operation. |
| 4 | −VS | Negative supply rail; must be bypassed with ≥0.1 µF capacitor; EPAD internally tied to this node. |
| 5 | +IN2 | Noninverting input for Channel 2; electrically isolated from Channel 1; identical Over-The-Top specs. |
| 6 | −IN2 | Inverting input for Channel 2; matched bias current (<700 pA) enables precise differential sensing. |
| 7 | VOUT2 | Channel 2 output; fully independent; supports simultaneous dual-sensor conditioning on one die. |
| 8 | +VS | Positive supply rail; bypassing required; supports up to 50 V continuous DC operation. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top™ Input Stage | Enables direct high-side sensing on 48 V buses or battery packs without external level shifters or resistive dividers. |
| Ultra-Wide Common-Mode Range | −VS − 0.1 V to −VS + 70 V guarantees functionality even when input exceeds positive rail - critical for fault detection. |
| Low 1/f Noise Corner | 6 Hz typical; preserves signal integrity in DC-coupled sensor interfaces (e.g., strain gauges, thermopiles) below 10 Hz. |
| Robust Input Protection | Tolerates ±80 V differential input and −10 V to +80 V absolute pin voltage - survives load dump and inductive kick events. |
| High PSRR & CMRR | 123 dB PSRR and 120 dB CMRR maintained across full common-mode range - rejects supply ripple and ground noise in noisy plants. |
Applications
| Industrial Sensor Conditioning | Battery & Power Supply Monitoring |
|---|---|
Use Scenario: Amplifying low-level mV outputs from RTDs, thermocouples, or pressure sensors in factory automation cabinets with 24–48 V DC power rails. IC Role / Device Role / Timing Role: Precision front-end amplifier with Over-The-Top inputs referenced to system ground, rejecting common-mode noise from shared 48 V bus. Use Value: Eliminates need for isolated power or signal conditioning ICs - reduces BOM count and improves long-term drift stability vs. discrete solutions. |
Use Scenario: Measuring battery pack voltage and charge/discharge current in EV auxiliary systems or telecom backup batteries operating at 36–60 V. IC Role / Device Role / Timing Role: Dual-channel op amp performing simultaneous high-side current sense (via shunt) and battery voltage monitoring with rail-independent inputs. Use Value: Enables single-chip solution for bidirectional current sensing and voltage scaling - avoids mismatch errors from separate amplifiers. |
| 4 mA to 20 mA Transmitters | Front-End Amplifiers in Abusive Environments |
Use Scenario: Driving 4–20 mA loop transmitters in oil & gas field instrumentation exposed to lightning-induced surges and wide ambient temperature swings. IC Role / Device Role / Timing Role: Output buffer and current-setting amplifier with Over-The-Top inputs accepting sensor signals referenced to non-ground potentials (e.g., floating thermocouples). Use Value: Maintains loop accuracy despite ground potential differences up to 70 V - prevents zero-shift errors in multi-node distributed systems. |
Use Scenario: Signal conditioning in motor drive control boards where EMI, voltage transients, and thermal cycling degrade conventional op amps. IC Role / Device Role / Timing Role: Robust analog front-end with ±3 kV HBM ESD rating, 150°C operation, and input tolerance to −20 V to +80 V survival conditions. Use Value: Reduces field failure rates by eliminating input-stage latch-up and parametric drift - extends mean time between failures (MTBF) in harsh settings. |
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 | Single-channel, 36 V max supply, 1.3 MHz GBP, ±50 µV VOS max; no Over-The-Top input stage - requires external level shifting above +VS. | Limited to ≤36 V systems; unsuitable for direct 48 V bus sensing without additional components. | Select when cost-sensitive single-channel needs exist and common-mode stays within rail limits. |
| OPA454AIDDA | Dual-channel, 100 V max supply, 2.5 MHz GBP, ±1.5 mV VOS max; higher power (4.5 mA/ch), no shutdown, no Over-The-Top - input range limited to rails. | Supports higher voltage but lacks Over-The-Top capability and precision; better for high-speed power op amp roles than precision sensing. | Select when driving capacitive loads >1 nF or requiring >100 mA output, not for low-drift current sensing. |
Compared with LT6015IMS8#PBF and OPA454AIDDA, the ADA4098-2BCPZ uniquely combines dual-channel precision (±35 µV VOS), 50 V operation, and true Over-The-Top input architecture - making it irreplaceable for ground-referenced high-side sensing in 24–48 V industrial systems without added circuitry.
Availability
ADA4098-2BCPZ is available at Aetrix Electronics and suitable for industrial sensor conditioning, battery monitoring, and 4–20 mA transmitter designs requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4098-2BCPZ 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 ADA4098-2BCPZ belongs to Analog Devices' Over-The-Top™ precision op amp product line, engineered specifically for signal integrity in high-common-mode, high-reliability applications such as power system monitoring and harsh-environment sensor interfaces.
FAQ
What is the maximum continuous supply voltage for ADA4098-2BCPZ?
The ADA4098-2BCPZ supports a maximum continuous supply voltage of +50 V (single supply) or ±25 V (split supply), as specified in its absolute maximum ratings. This limit is enforced by time-dependent dielectric breakdown (TDDB) constraints on internal oxides. Transient overshoot up to +60 V is tolerated briefly, but sustained operation must remain at or below +50 V to ensure long-term reliability. The ADA4098-2BCPZ datasheet confirms this in Table 3 and Section "Maximum Operating Voltage".
Does ADA4098-2BCPZ support Over-The-Top operation in both channels simultaneously?
Yes, ADA4098-2BCPZ provides full Over-The-Top™ functionality on both channels independently: each input pair (+IN1/−IN1 and +IN2/−IN2) operates from −VS − 0.1 V to −VS + 70 V, regardless of +VS voltage. This is confirmed in the General Description and Table 1 (Common-Mode Input Range), where the specification applies identically to both channels in the SOIC_N package. No channel sharing or degradation occurs during simultaneous Over-The-Top use.
What package type is ADA4098-2BCPZ and does it include shutdown functionality?
The ADA4098-2BCPZ is supplied in an 8-lead standard small outline (SOIC_N) package with exposed pad (EPAD). Unlike the 10-lead LFCSP variant, the SOIC_N version does not include SHDN1 or SHDN2 pins - shutdown functionality is absent in this package. This is explicitly stated in the Pin Configuration section (Figure 5 and Table 7), which lists only eight pins with no shutdown terminals. The ADA4098-2BCPZ therefore operates continuously when powered.
How does ADA4098-2BCPZ achieve ±3 kV HBM ESD protection without external components?
The ADA4098-2BCPZ integrates proprietary on-die ESD protection structures - including diode clamps and current-limiting resistors - directly at each input and supply pin. These are characterized per ANSI/ESDA/JEDEC JS-001 and validated at ±3 kV HBM (Class 2), as documented in Table 5 of the datasheet. No external TVS diodes or series resistors are needed for basic handling protection, though system-level surge immunity may require additional board-level safeguards.
Is ADA4098-2BCPZ suitable for precision current sensing in 48 V battery systems?
Yes, ADA4098-2BCPZ is purpose-built for this application: its −VS + 70 V common-mode range accepts direct connection to a 48 V battery's high side while referencing measurements to system ground, and its ±35 µV max input offset voltage introduces <0.001% gain error in typical 100 mΩ shunt configurations. The device's 165 µA/channel quiescent current also minimizes self-heating drift. Real-world validation is shown in Figure 1 ("1 V/A Over-The-Top Current Sense Application") using the ADA4098-1 - confirming topology readiness for ADA4098-2BCPZ.
ADA4098-2BCPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad, CSP
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 165µA (x2 Channels)
- Current - Output / Channel:
- 40 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:
- 10-LFCSP (3x3)
ADA4098-2BCPZ FAQ
1.How can I place an order for ADA4098-2BCPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4098-2BCPZ 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 ADA4098-2BCPZ reliable?
The price and inventory of ADA4098-2BCPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4098-2BCPZ is usually 5 days.
3.What payment methods are accepted for ADA4098-2BCPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4098-2BCPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4098-2BCPZ?
ADA4098-2BCPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4098-2BCPZ 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 ADA4098-2BCPZ?
For technical support, including ADA4098-2BCPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4098-2BCPZ requirements.
6.How does Aetrix verify that ADA4098-2BCPZ is sourced from the original manufacturer or authorized distributors?
All ADA4098-2BCPZ 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 ADA4098-2BCPZ meets industry standards.
7.What is the process for return or replacement of ADA4098-2BCPZ?
All ADA4098-2BCPZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4098-2BCPZ, 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 ADA4098-2BCPZ part is unused and in its original packaging.
Return procedure for ADA4098-2BCPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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