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Analog Devices Inc. ADA4177-1ARZ-R7
- Part No.:
- ADA4177-1ARZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4177-1ARZ-R7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:648
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Product details
Overview
ADA4177-1ARZ-R7 from Analog Devices is a single-channel, rail-to-rail output precision operational amplifier with OVP and EMI protection. It delivers 60 µV max offset voltage (25°C), 1 µV/°C max drift, 1 nA max input bias current, 8 nV/√Hz voltage noise density at 1 kHz, and operates from ±2.5 V to ±18 V supplies. It is used in thermocouple signal conditioning, RTD front ends, and shunt-based current measurement circuits.
For engineers reviewing the ADA4177-1ARZ-R7 datasheet, ADA4177-1ARZ-R7 pinout, ADA4177-1ARZ-R7 application, or ADA4177-1ARZ-R7 equivalent, this page provides verified specifications, SOIC-8 package details, precision op amp design context, and validated alternative options for industrial sensor interface and high-reliability analog signal chains.
Technical Context
The ADA4177-1ARZ-R7 employs a proprietary input stage with integrated overvoltage protection (±32 V beyond rails) and on-chip EMI filtering delivering 70 dB rejection at 1000 MHz and 90 dB at 2400 MHz. Its precision architecture achieves 100 dB minimum large-signal voltage gain across full temperature and supply range while maintaining unity-gain stability and no phase reversal.
It features differential input capacitance of 1 pF and common-mode input capacitance of 8 pF, enabling robust performance in noisy environments. The device supports capacitive loads >1000 pF without external compensation and operates across −40°C to +125°C with long-term offset drift of only 2 µV typical over 10,000 hours.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 60 µV maximum at 25°C - enables sub-0.01% accuracy in mV-level sensor outputs without trimming. |
| Offset Drift | 1 µV/°C maximum - ensures <10 µV total drift over 85°C industrial range, critical for uncalibrated systems. |
| Input Bias Current | 1 nA maximum at 25°C - allows use with high-impedance sources (e.g., pH electrodes, piezoresistive sensors) without significant error. |
| Voltage Noise Density | 8 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level signals such as thermocouples and strain gages. |
| Supply Range | ±2.5 V to ±18 V - accommodates both low-voltage portable instrumentation and high-voltage industrial control rails. |
| EMI Rejection | 70 dB at 1000 MHz, 90 dB at 2400 MHz - suppresses RF interference from cellular/WiFi sources in dense PCB layouts. |
| Overvoltage Protection | ±32 V beyond supply rails - eliminates need for external clamping diodes in field-connected sensor interfaces. |
Pinout & Package
ADA4177-1ARZ-R7 is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with standard industry footprint and creepage/clearance compliant for industrial isolation requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected - unused pins; must be left floating or tied to ground per layout best practice. |
| 2 | −IN | Inverting input - accepts feedback network for closed-loop configurations including inverting amplifiers and transimpedance stages. |
| 3 | +IN | Noninverting input - connects to high-impedance sensor sources; benefits from EMI-filtered input structure. |
| 4 | V− | Negative supply rail - must be decoupled locally with ≥0.1 µF ceramic capacitor to minimize PSRR degradation. |
| 6 | OUT | Amplifier output - rail-to-rail swing supports full dynamic range utilization into 2 kΩ load or higher. |
| 7 | V+ | Positive supply rail - shares same EMI filter topology as +IN; requires local decoupling adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated EMI filter | 70 dB rejection at 1 GHz enables reliable operation near RF transceivers without board-level shielding. |
| Input overvoltage protection | ±32 V beyond rails eliminates external protection components in industrial I/O modules and field wiring interfaces. |
| Rail-to-rail output | Delivers >4.9 V swing at ±5 V supply with 1 mA load - maximizes ADC input range and SNR in data acquisition systems. |
| Unity-gain stable | Operates without external compensation in buffer, gain-of-1, or low-gain configurations - simplifies layout and reduces BOM count. |
| No phase reversal | Prevents latch-up or runaway in overdriven conditions - essential for fault-tolerant sensor monitoring in safety-critical systems. |
Applications
| Thermocouple Signal Conditioning | RTD Front-End Amplification |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from Type K/J thermocouples in furnace controllers and environmental chambers. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier core with cold-junction compensation interface. Use Value: 60 µV max offset and 1 µV/°C drift ensure <±0.5°C measurement uncertainty over −40°C to +125°C ambient without calibration. |
Use Scenario: Exciting 100 Ω Pt100 RTDs and amplifying resulting mV signals in HVAC and process control transmitters. IC Role / Device Role / Timing Role: Low-bias-current, low-noise gain stage in 2-/3-/4-wire RTD bridge configurations. Use Value: 1 nA max input bias current prevents self-heating errors in high-resistance RTD elements; 8 nV/√Hz noise preserves resolution at 0.01 Ω sensitivity. |
| Shunt-Based Current Measurement | Optical Network Monitor Circuits |
Use Scenario: Measuring bidirectional current through 1–10 mΩ shunts in motor drives and battery management systems. IC Role / Device Role / Timing Role: High-common-mode rejection difference amplifier front end with overvoltage tolerance for fault events. Use Value: ±32 V input OVP withstands load-dump transients; 122 dB CMRR rejects common-mode noise from switching power stages. |
Use Scenario: Converting photodiode current to voltage in optical receiver modules for GPON and 5G fronthaul equipment. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with EMI-hardened inputs for RF-dense telecom chassis. Use Value: 90 dB EMI rejection at 2.4 GHz prevents corruption from nearby WiFi/BT radios; 500 µA supply current enables multi-channel integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8628ARZ | Lower offset (1 µV typ) but no integrated OVP; 1.5 µV/°C drift; 0.25 nA bias current; 4.5 V to 36 V single-supply only. | Suitable for ultra-low-offset lab instruments but requires external OVP for field-deployed systems. | Select AD8628ARZ when absolute offset minimization outweighs field robustness; avoid where ±32 V OVP is required. |
| LTC2057HMS8#PBF | Zero-drift architecture; 0.5 µV max offset; 0.015 µV/°C drift; 250 pA bias current; no integrated EMI filter or OVP. | Better long-term stability for metrology-grade calibration equipment; lacks ruggedized input protection. | Choose LTC2057HMS8#PBF for zero-drift-critical applications with controlled lab environments; ADA4177-1ARZ-R7 preferred for industrial field interfaces. |
Compared with AD8628ARZ and LTC2057HMS8#PBF, ADA4177-1ARZ-R7 uniquely combines precision (60 µV offset), ruggedness (±32 V OVP), and EMI immunity (90 dB at 2.4 GHz) in a single SOIC-8 package-enabling simplified, high-reliability sensor front ends without supplemental protection circuitry.
Availability
ADA4177-1ARZ-R7 is available at Aetrix Electronics and suitable for thermocouple signal conditioning, RTD front-end amplification, and shunt-based current measurement requiring stable component supply across extended temperature and harsh EMI environments.
Supply support for ADA4177-1ARZ-R7 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 ADA4177 family was designed specifically for precision sensor signal conditioning in electrically noisy, field-deployed industrial systems-integrating OVP, EMI filtering, and low-drift performance in a single monolithic amplifier.
FAQ
What is the operating temperature range of the ADA4177-1ARZ-R7?
The ADA4177-1ARZ-R7 is specified to operate across −40°C to +125°C, meeting industrial temperature requirements. This range is validated for all key parameters including offset voltage, drift, and CMRR, making ADA4177-1ARZ-R7 suitable for under-hood automotive sensors, factory automation PLCs, and outdoor telecom equipment where ambient extremes occur.
Does the ADA4177-1ARZ-R7 require external compensation for stability?
No, the ADA4177-1ARZ-R7 is unity-gain stable and does not require external compensation. It maintains phase margin >45° at unity gain and supports capacitive loads exceeding 1000 pF directly at the output. This eliminates the need for series resistors or feedback capacitors in buffer and low-gain configurations, simplifying design and reducing component count for ADA4177-1ARZ-R7 implementations.
What package type is used for the ADA4177-1ARZ-R7?
The ADA4177-1ARZ-R7 uses an 8-lead SOIC package (SOIC_N), with standard JEDEC MS-012AC dimensions (body width 3.9 mm, lead pitch 1.27 mm). This package is RoHS-compliant, tape-and-reel packaged (R7 suffix), and compatible with automated SMT assembly processes used in high-volume industrial electronics manufacturing for ADA4177-1ARZ-R7 deployment.
How does the EMI rejection of the ADA4177-1ARZ-R7 improve system-level performance?
The ADA4177-1ARZ-R7 integrates an on-chip EMI filter providing 70 dB rejection at 1000 MHz and 90 dB at 2400 MHz on the +IN pin. This directly mitigates RF rectification effects that cause DC offset shifts and measurement errors in wireless-dense environments-such as base stations or smart meters-where external filtering would otherwise add cost and board area for ADA4177-1ARZ-R7 designs.
Can the ADA4177-1ARZ-R7 be used as a comparator?
Yes, the ADA4177-1ARZ-R7 can be used as a comparator in non-critical applications, though it is not optimized for speed or open-collector output. Its slew rate (1.5 V/µs) and propagation delay (~1.8 µs to 0.1%) allow basic level detection, but dedicated comparators like the ADCMP350 should be selected when fast response, rail-to-rail input, or push-pull output are required for ADA4177-1ARZ-R7 replacement scenarios.
ADA4177-1ARZ-R7 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 pA
- Voltage - Input Offset:
- 3 µV
- Current - Supply:
- 500µA
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4177-1ARZ-R7 FAQ
1.How can I place an order for ADA4177-1ARZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4177-1ARZ-R7 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 ADA4177-1ARZ-R7 reliable?
The price and inventory of ADA4177-1ARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4177-1ARZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4177-1ARZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4177-1ARZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4177-1ARZ-R7?
ADA4177-1ARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4177-1ARZ-R7 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 ADA4177-1ARZ-R7?
For technical support, including ADA4177-1ARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4177-1ARZ-R7 requirements.
6.How does Aetrix verify that ADA4177-1ARZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4177-1ARZ-R7 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 ADA4177-1ARZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4177-1ARZ-R7?
All ADA4177-1ARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4177-1ARZ-R7, 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 ADA4177-1ARZ-R7 part is unused and in its original packaging.
Return procedure for ADA4177-1ARZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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