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Analog Devices Inc. ADA4097-2HCPZ
- Part No.:
- ADA4097-2HCPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad, CSP
- Datasheet:
-
ADA4097-2HCPZ.pdf
- Description:
- DUAL PRECISION, MICRO-POWER OTT
- Quantity:
- Payment:
- Shipping:
Inventory:3,378
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Product details
Overview
ADA4097-2HCPZ 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, consumes only 32.5 µA per channel, and supports rail-to-rail input/output with common-mode range extending to −VS − 0.1 V up to −VS + 70 V - enabling direct battery voltage monitoring and current sensing in automotive and industrial power systems.
For engineers reviewing the ADA4097-2HCPZ datasheet, ADA4097-2HCPZ pinout, ADA4097-2HCPZ application, or ADA4097-2HCPZ equivalent, key selection criteria include its 70 V over-the-rail input tolerance, ±60 µV max input offset voltage (H grade), shutdown capability, 120 dB CMRR across full common-mode range, and qualification for −55°C to +150°C operation - critical for abusive-environment front-end amplification and 4 mA–20 mA transmitter designs.
Technical Context
The ADA4097-2HCPZ implements a proprietary Over-The-Top™ input stage that enables robust operation with input voltages up to 70 V above the negative rail, independent of positive supply voltage. Its input protection tolerates ±80 V differential stress without damage or dc accuracy degradation.
This dual op amp features unity-gain stability, drives ≥20 mA per channel, and supports capacitive loads up to 200 pF. The H-grade variant is specified for −55°C to +150°C operation with ±1.5 µV/°C max input offset drift and 120 dB min CMRR over −0.1 V to +70 V common-mode range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +3 V to +50 V - supports single-supply industrial monitoring and high-side sensing without level-shifting. |
| Input Common-Mode Range | −VS − 0.1 V to −VS + 70 V - enables direct connection to battery terminals or 48 V bus rails in abuse-tolerant applications. |
| Gain Bandwidth Product | 130 kHz typical - sufficient for precision DC-coupled signal conditioning and slow analog feedback loops. |
| Input Offset Voltage (H grade) | ±60 µV max - ensures sub-0.1% error in mV-level sensor outputs (e.g., shunt-based current sensing). |
| Supply Current per Channel | 32.5 µA typical - enables always-on monitoring in energy-constrained systems like remote sensors or battery-backed modules. |
| CMRR | 120 dB minimum over −0.1 V to +70 V - maintains accuracy despite large ground shifts or noisy supply rails. |
| Slew Rate | 0.1 V/µs typical - adequate for step-response fidelity in <100 kHz control and monitoring paths. |
Pinout & Package
The ADA4097-2HCPZ is packaged in a 10-lead LFCSP (Lead-Frame Chip-Scale Package) with exposed pad, optimized for thermal performance and space-constrained PCB layouts in high-reliability industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VOUT1, VOUT2 | Amplifier outputs - rail-to-rail capable, high-impedance during shutdown. |
| 2, 8 | −IN1, −IN2 | Inverting inputs - tolerate ±80 V differential stress; no phase reversal under overdrive. |
| 3, 7 | +IN1, +IN2 | Noninverting inputs - support Over-The-Top operation up to −VS + 70 V. |
| 4, 10 | −VS, +VS | Power supply pins - require local 0.1 µF bypassing; −VS connects to EPAD for thermal conduction. |
| 5, 6 | SHDN1, SHDN2 | Independent channel shutdown controls - active-high logic referenced to −VS; 2.5 µs turn-off, 100 µs wake-up. |
| EPAD | Exposed Pad | Thermal and electrical connection to −VS - mandatory for thermal reliability and EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top™ Input Stage | Enables direct sensing of signals referenced to high-voltage rails (e.g., battery cathode, 48 V bus) without external level shifters or resistive dividers. |
| ±2 kV HBM / ±1.25 kV FICDM ESD Rating | Robust handling in manufacturing and field-deployed equipment subject to electrostatic discharge events. |
| Shutdown Mode (20 µA max) | Reduces total system quiescent current by >99% per channel - essential for battery longevity in always-connected IoT nodes. |
| −55°C to +150°C Operating Range (H grade) | Validated for under-hood automotive, downhole oil/gas, and industrial motor drive applications where ambient extremes degrade standard op amps. |
| No Phase Reversal Under Input Overdrive | Prevents latch-up or erroneous control signals when inputs exceed supply rails - critical for fault-tolerant safety circuits. |
Applications
| Battery Voltage Monitoring | High-Side Current Sensing |
|---|---|
|
Use Scenario: Real-time monitoring of 12 V–48 V battery packs in EV auxiliary systems or telecom backup supplies. IC Role / Device Role / Timing Role: Precision buffer and level translator for battery cathode voltage, referenced to system ground. Use Value: Eliminates need for isolated ADCs or resistive dividers while maintaining ±60 µV offset accuracy across temperature and voltage extremes. |
Use Scenario: Measuring load current via shunt resistor placed between high-voltage rail and load (e.g., 48 V motor driver output). IC Role / Device Role / Timing Role: Differential amplifier with Over-The-Top inputs measuring mV-level shunt voltage at potentials up to 70 V above ground. Use Value: Achieves <0.1% gain error without external protection diodes or level-shifting circuitry, reducing BOM count and layout area. |
| 4–20 mA Transmitter Front-End | Industrial Sensor Signal Conditioning |
|
Use Scenario: Converting sensor output (e.g., RTD, strain gauge) into standardized 4–20 mA loop current for PLC interfaces. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with programmable gain and rail-to-rail output driving current DAC. Use Value: Maintains linearity and offset stability over wide temperature ranges and supply variations, meeting IEC 61000-4-5 surge immunity requirements. |
Use Scenario: Amplifying low-amplitude signals from pressure, temperature, or position sensors in factory automation equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift gain stage with 1000 nVp-p 0.1–10 Hz noise and 6 Hz 1/f corner. Use Value: Preserves microvolt-level resolution in DC-coupled measurements without requiring chopper stabilization or external filtering. |
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 (±50 V), higher GBP (1.3 MHz), but no Over-The-Top input - requires external level shifting for >±VS inputs. | Limited to conventional rail-referenced sensing; unsuitable for direct battery cathode monitoring. | Choose LT6015 when bandwidth >100 kHz is required and input stays within supply rails. |
| OPA2189IDR | Zero-drift architecture (0.005 µV/°C), lower noise (7.2 nV/√Hz), but max supply = 36 V and no Over-The-Top capability. | Not rated for >36 V operation or inputs beyond rails - incompatible with 48 V+ systems or abusive environments. | Choose OPA2189 for ultra-low drift in ≤36 V, rail-referenced precision applications only. |
Compared with LT6015IMS8#PBF and OPA2189IDR, the ADA4097-2HCPZ uniquely combines 70 V over-the-rail input tolerance, −55°C to +150°C H-grade qualification, and 32.5 µA/channel quiescent current - making it the only viable option for unbuffered, high-temperature, high-voltage sensor front-ends where input exceeds supply rails.
Availability
ADA4097-2HCPZ is available at Aetrix Electronics and suitable for battery monitoring, industrial current sensing, 4–20 mA transmitters, and harsh-environment sensor conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4097-2HCPZ 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 precision signal acquisition in electrically abusive, high-temperature, and high-voltage industrial and automotive subsystems - emphasizing robustness, low power, and rail-exceeding input capability over raw speed.
FAQ
What does "Over-The-Top™" mean for the ADA4097-2HCPZ?
The Over-The-Top™ input architecture of the ADA4097-2HCPZ allows its inputs to operate up to 70 V above the negative supply rail (−VS + 70 V), even when the positive supply is much lower - enabling direct connection to battery cathodes or high-side shunts without external level-shifting components. This feature is validated across the full −55°C to +150°C temperature range and is intrinsic to the ADA4097-2HCPZ silicon design.
Does the ADA4097-2HCPZ support true rail-to-rail input and output?
Yes, the ADA4097-2HCPZ provides rail-to-rail input common-mode range (−VS − 0.1 V to −VS + 70 V) and rail-to-rail output swing (within 15 mV of rails, no load). Its Over-The-Top™ input extends functionality beyond standard rail-to-rail op amps by tolerating inputs significantly above +VS - a capability confirmed in the ADA4097-2HCPZ datasheet Figures 26–29 and Table 1 specifications.
What is the function of the exposed pad (EPAD) on the ADA4097-2HCPZ package?
The EPAD on the ADA4097-2HCPZ must be soldered to the −VS net on the PCB. It serves dual purposes: (1) thermal conduction to reduce junction temperature (θJC = 5.5°C/W), and (2) EMI suppression by providing low-inductance grounding for internal substrate noise. Leaving the EPAD unconnected degrades thermal performance and may cause instability or increased noise - a requirement explicitly stated in the ADA4097-2HCPZ datasheet Table 8 and Figure 6.
Can both channels of the ADA4097-2HCPZ be independently shut down?
Yes, the ADA4097-2HCPZ in the 10-lead LFCSP package (HCPZ suffix) provides two dedicated shutdown pins: SHDN1 (Pin 5) and SHDN2 (Pin 6), each controlling one amplifier channel independently. Each pin asserts shutdown when driven >−VS + 1.5 V, with 2.5 µs turn-off and 100 µs wake-up times - fully documented in the ADA4097-2HCPZ datasheet Table 1, Section "SHDN AND SHDNx PINS", and Figure 6.
Is the ADA4097-2HCPZ qualified for automotive applications?
The ADA4097-2HCPZ is not AEC-Q200 qualified, but its H-grade specification (−55°C to +150°C operating temperature, ±2 kV HBM ESD, and 175°C thermal shutdown) aligns with under-hood automotive requirements. It is widely deployed in non-safety-critical automotive subsystems such as battery management, HVAC actuators, and lighting control - though final qualification depends on system-level validation per ISO/TS 16949 and OEM-specific test plans.
ADA4097-2HCPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad, CSP
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- 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:
- -55°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-LFCSP (3x3)
ADA4097-2HCPZ FAQ
1.How can I place an order for ADA4097-2HCPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4097-2HCPZ 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 ADA4097-2HCPZ reliable?
The price and inventory of ADA4097-2HCPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4097-2HCPZ is usually 5 days.
3.What payment methods are accepted for ADA4097-2HCPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4097-2HCPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4097-2HCPZ?
ADA4097-2HCPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4097-2HCPZ 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 ADA4097-2HCPZ?
For technical support, including ADA4097-2HCPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4097-2HCPZ requirements.
6.How does Aetrix verify that ADA4097-2HCPZ is sourced from the original manufacturer or authorized distributors?
All ADA4097-2HCPZ 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 ADA4097-2HCPZ meets industry standards.
7.What is the process for return or replacement of ADA4097-2HCPZ?
All ADA4097-2HCPZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4097-2HCPZ, 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 ADA4097-2HCPZ part is unused and in its original packaging.
Return procedure for ADA4097-2HCPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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