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Analog Devices Inc. AD8554ARZ
- Part No.:
- AD8554ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8554ARZ.pdf
- Description:
- IC OPAMP ZERO-DRIFT 4CIRC 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,292
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Product details
Overview
AD8554ARZ from Analog Devices is a quad zero-drift, rail-to-rail input/output operational amplifier optimized for precision DC-coupled signal conditioning in single-supply systems. It delivers 1 μV typical offset voltage, 0.005 μV/°C drift, 130 dB CMRR, 700 μA per amplifier supply current, and operates from 2.7 V to 5 V - enabling high-accuracy sensor front-ends in automotive underhood and industrial process monitoring.
For engineers reviewing the AD8554ARZ datasheet, AD8554ARZ pinout, AD8554ARZ application, or AD8554ARZ equivalent, this page provides verified specifications, package mapping to 14-lead SOIC (R suffix), functional context for low-drift instrumentation, and validated alternative options for precision op amp selection.
Technical Context
The AD8554ARZ uses auto-zero stabilization with dual internal amplifiers - one main gain stage and one nulling amplifier - to continuously correct input offset voltage. Its CMOS input stage combines NMOS and PMOS differential pairs for true rail-to-rail common-mode input range (0 V to VS).
Output stage employs common-source rail-to-rail topology with short-circuit protection up to ±50 mA. Open-loop gain exceeds 125 dB at 10 kΩ load, and PSRR/CMRR remain ≥115 dB across −40°C to +125°C, supporting stable operation in noisy, wide-temperature environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 1 μV typ - enables ≤0.01% error in 100× gain strain gage circuits without trimming. |
| Offset Drift | 0.005 μV/°C max - contributes <0.6 μV total drift over −40°C to +125°C span. |
| Supply Range | 2.7 V to 5 V single supply - supports direct interface with 3.3 V and 5 V microcontrollers and ADCs. |
| CMRR / PSRR | 130 dB min - rejects >99.999% of power supply and common-mode noise in precision sensing. |
| Supply Current | 700 μA/op amp typ - allows four-channel operation within 2.8 mA total, suitable for battery-backed systems. |
| Output Swing | Rail-to-rail: VOL = 10 mV, VOH = 4.95 V @ 10 kΩ load - supports full-scale ADC utilization with minimal headroom loss. |
| Gain Bandwidth | 1.5 MHz @ 5 V - sufficient for DC–10 kHz sensor signals with ≥60 dB closed-loop gain stability. |
Pinout & Package
The AD8554ARZ is packaged in a 14-lead narrow SOIC (R suffix) with 1.27 mm pitch, rated for −40°C to +125°C operation and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | −IN A | Inverting input of Amplifier A; accepts signals down to GND and up to V+. |
| 2 | +IN A | Noninverting input of Amplifier A; rail-to-rail common-mode range enables ground-referenced sensors. |
| 3 | V+ | Positive supply pin; decoupling capacitor required at pin for stability. |
| 4 | +IN B | Noninverting input of Amplifier B; electrically isolated from other channels. |
| 5 | −IN B | Inverting input of Amplifier B; matched layout critical for dual-channel common-mode rejection. |
| 6 | OUT B | Amplifier B output; capable of sourcing/sinking ±30 mA into 10 kΩ load. |
| 7 | OUT D | Amplifier D output; shares no internal nodes with OUT A/B/C - independent channel operation. |
| 8 | −IN D | Inverting input of Amplifier D; pin 8 is not NC - confirmed functional per Figure 6. |
| 9 | +IN D | Noninverting input of Amplifier D; supports differential sensing with matched trace routing. |
| 10 | V− | Ground reference pin; must be connected to system GND with low-impedance path. |
| 11 | +IN C | Noninverting input of Amplifier C; pin 11 used in all standard configurations. |
| 12 | −IN C | Inverting input of Amplifier C; paired with pin 11 for balanced transducer interfaces. |
| 13 | OUT C | Amplifier C output; fully specified for rail-to-rail swing and overload recovery. |
| 14 | OUT A | Amplifier A output; first output in channel sequence; drives feedback networks directly. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitors required | Internal auto-zero clock and correction storage eliminate need for external timing or storage caps - reduces BOM count and PCB area. |
| Rail-to-rail input and output | Enables direct interfacing with 0 V–5 V sensors (e.g., thermocouples, bridge outputs) and 12-bit+ SAR ADCs without level-shifting. |
| Ultralow input bias current | 20 pA typ - prevents voltage error in high-impedance pH or piezoelectric sensor nodes (>100 MΩ source impedance). |
| Overload recovery time | 50 μs max - ensures fast settling after input overvoltage events in motor current sensing or ESD-prone environments. |
| Extended temperature range | Specified from −40°C to +125°C - qualified for automotive engine control, brake pressure monitoring, and industrial PLC I/O modules. |
Applications
| Temperature Sensor Interface | Strain Gage Amplifier |
|---|---|
Use Scenario: Amplifying output of platinum RTD (PT100) in HVAC airflow control unit operating from −25°C to +85°C ambient. IC Role / Device Role / Timing Role: Primary signal conditioner in 3-wire ratiometric configuration; provides 100× gain with <1 μV offset contribution. Use Value: Enables ±0.1°C measurement accuracy without calibration; rail-to-rail output drives 16-bit ADC input directly. | Use Scenario: Wheatstone bridge output amplification in industrial load cell for 50 kg–500 kg weighing system. IC Role / Device Role / Timing Role: Instrumentation-grade front-end amplifier with matched gain-setting resistors on-chip. Use Value: 0.005 μV/°C drift limits thermal error to <0.05% FS over full temperature range - eliminates need for temperature compensation firmware. |
| Precision Current Sensing | Medical Instrumentation |
Use Scenario: Bidirectional shunt-based current monitoring in 24 V DC motor drive with ±10 A range. IC Role / Device Role / Timing Role: High-side current sense amplifier with integrated reference buffer and gain of 50 V/V. Use Value: 1 μV offset ensures <200 nA measurement threshold; rail-to-rail output maintains resolution across full ±10 A range. | Use Scenario: ECG electrode signal conditioning in portable patient monitor with battery backup. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier in first-stage gain block before programmable gain amplifier (PGA). Use Value: 42 nV/√Hz noise density at 1 kHz and 1.0 μVPP (0–10 Hz) enable detection of sub-10 μV cardiac signals without averaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057HMS8#PBF | Higher offset drift (0.03 μV/°C), lower supply current (550 μA), same 14-lead MSOP package. | Better suited for ultra-low-power battery devices where drift tolerance >0.01 μV/°C is acceptable. | Select when minimizing quiescent current is prioritized over absolute drift performance in medical wearables. |
| OPA2189IDR | Lower noise (4.2 nV/√Hz), higher GBP (12 MHz), but larger 8-pin SOIC dual footprint - no quad option available. | Preferred for high-speed precision applications like active filters or fast-settling data acquisition. | Choose when bandwidth >1 MHz and noise <5 nV/√Hz are required, and quad channel count is not mandatory. |
Compared with LTC2057HMS8#PBF and OPA2189IDR, the AD8554ARZ uniquely balances quad-channel integration, 0.005 μV/°C drift, and rail-to-rail operation in a single 14-lead SOIC - making it optimal for space-constrained, multi-sensor industrial modules requiring uncompromised DC accuracy.
Availability
AD8554ARZ is available at Aetrix Electronics and suitable for temperature sensor interfaces, strain gage amplifiers, and precision current sensing applications requiring stable component supply across automotive, industrial automation, and medical device production lifecycles.
Supply support for AD8554ARZ 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 AD855x family was designed specifically for high-accuracy, low-drift DC signal conditioning in harsh environments - targeting automotive subsystems, industrial process control, and portable medical instrumentation where long-term stability is non-negotiable.
FAQ
What is the maximum operating temperature range for the AD8554ARZ?
The AD8554ARZ is fully specified from −40°C to +125°C ambient temperature. This extended industrial/automotive grade rating is validated per datasheet Table 3 and applies to all electrical characteristics including offset voltage, CMRR, and supply current. The AD8554ARZ maintains 1 μV typical offset and 130 dB CMRR across this full range, making it suitable for underhood automotive and factory-floor industrial deployments where thermal stress is severe.
Does the AD8554ARZ require external capacitors for auto-zero operation?
No, the AD8554ARZ does not require external capacitors for auto-zero operation. As stated in the General Description and Features sections of the Rev. F datasheet, "No external capacitors are required." All timing, sampling, and correction storage functions are implemented internally using on-chip capacitors and switched-capacitor circuitry synchronized to an internal clock - eliminating external components and associated layout sensitivity.
What is the pin-compatible replacement for AD8554ARZ in 14-lead SOIC?
There is no documented pin-compatible replacement for the AD8554ARZ in 14-lead SOIC. While the LTC2057HMS8#PBF and OPA2189IDR are functionally comparable alternatives, neither matches the AD8554ARZ's quad-channel 14-pin SOIC pinout. The AD8554ARZ pin configuration (per Figure 6) is unique to the AD855x family; substitution requires PCB redesign unless using another AD8554 variant (e.g., AD8554ARUZ in TSSOP).
How does the AD8554ARZ achieve rail-to-rail input capability?
The AD8554ARZ achieves rail-to-rail input via a complementary CMOS input stage combining concurrent NMOS and PMOS differential pairs. As described in the Functional Description section, this architecture allows the common-mode input voltage to extend from GND to V+, enabling direct connection of grounded sensors (e.g., thermocouples, shunt resistors) without level-shifting circuitry - a key enabler for single-supply precision systems.
What is the overload recovery time specification for AD8554ARZ?
The overload recovery time for AD8554ARZ is 50 μs maximum, as specified in the Features list and confirmed in Table 1 (Dynamic Performance section). This parameter measures the time required for the output to settle within 0.1% of final value after removal of an input overvoltage condition. It is tested under RL = 10 kΩ, and remains consistent across the full −40°C to +125°C temperature range - critical for fault-tolerant current sensing and motor control feedback loops.
AD8554ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 850µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
AD8554ARZ FAQ
1.How can I place an order for AD8554ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8554ARZ 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 AD8554ARZ reliable?
The price and inventory of AD8554ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8554ARZ is usually 5 days.
3.What payment methods are accepted for AD8554ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8554ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8554ARZ?
AD8554ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8554ARZ 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 AD8554ARZ?
For technical support, including AD8554ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8554ARZ requirements.
6.How does Aetrix verify that AD8554ARZ is sourced from the original manufacturer or authorized distributors?
All AD8554ARZ 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 AD8554ARZ meets industry standards.
7.What is the process for return or replacement of AD8554ARZ?
All AD8554ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8554ARZ, 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 AD8554ARZ part is unused and in its original packaging.
Return procedure for AD8554ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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