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Analog Devices Inc. ADA4177-1ARMZ-R7
- Part No.:
- ADA4177-1ARMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4177-1ARMZ-R7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:774
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Product details
Overview
ADA4177-1ARMZ-R7 from Analog Devices is a single-channel precision operational amplifier with rail-to-rail output, 60 µV max offset voltage at 25°C, 1 µV/°C max drift, 1 nA max input bias current, and integrated 32 V overvoltage protection on inputs-designed for high-accuracy sensor signal conditioning in industrial instrumentation and optical network control circuits.
For engineers reviewing the ADA4177-1ARMZ-R7 datasheet, ADA4177-1ARMZ-R7 pinout, ADA4177-1ARMZ-R7 application, or ADA4177-1ARMZ-R7 equivalent, key selection criteria include input robustness (±32 V beyond rails), EMI rejection (70 dB @ 1 GHz), low 8 nV/√Hz noise at 1 kHz, ±2.5 V to ±18 V dual-supply operation, and guaranteed performance across −40°C to +125°C.
Technical Context
The ADA4177-1ARMZ-R7 implements a protected-input architecture featuring internal clamping diodes and series current-limiting elements that sustain ±32 V input excursions relative to supply rails without damage or phase reversal. Its precision core uses laser-trimmed thin-film resistors and a low-drift input stage to achieve 2 µV typical offset and <2 µV long-term drift over 10,000 hours.
It integrates a broadband EMI filter at the noninverting input, delivering 70 dB rejection at 1000 MHz and 90 dB at 2400 MHz-critical for operation in RF-dense environments like wireless base station control. The amplifier is unity-gain stable and drives >1000 pF capacitive loads without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 60 µV maximum at 25°C - ensures ≤0.0012% gain error in 5 V full-scale 16-bit systems |
| Offset Drift | 1 µV/°C maximum - limits temperature-induced error to <120 µV over −40°C to +125°C range |
| Input Bias Current | 1 nA maximum at 25°C - enables accurate measurement with high-impedance sources (e.g., RTDs, piezoelectric sensors) |
| Voltage Noise Density | 8 nV/√Hz typical at 1 kHz - supports low-noise amplification of microvolt-level thermocouple outputs |
| EMI Rejection | 70 dB typical at 1000 MHz - suppresses cellular/WiFi interference in mixed-signal PCB layouts |
| Supply Range | ±2.5 V to ±18 V - accommodates both low-voltage portable instrumentation and high-voltage process control rails |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–5 V or ±10 V input ranges |
Pinout & Package
ADA4177-1ARMZ-R7 is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with standard pin spacing (1.27 mm pitch) and exposed pad-less construction suitable for automated assembly and IPC Class 2 reliability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected - no routing or thermal tie required; floating per datasheet Figure 4 |
| 2 | −IN | Inverting input - accepts feedback network; EMI-filtered in ADA4177-1ARMZ-R7 variant per datasheet Table 6 |
| 3 | +IN | Noninverting input - features integrated EMI filter (70 dB @ 1 GHz) and ±32 V OVP clamp |
| 4 | V− | Negative supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| 6 | OUT | Amplifier output - rail-to-rail capable; drives ≥25 mA load with <1 V dropout |
| 7 | V+ | Positive supply rail - accepts up to ±18 V; PSRR = 125 dB minimizes supply ripple coupling |
Key Features
| Feature | Design Value |
|---|---|
| Input Overvoltage Protection | ±32 V beyond supply rails - eliminates need for external series resistors or clamps in field-connected sensor interfaces |
| Integrated EMI Filter | 70 dB rejection at 1000 MHz - prevents RF rectification and DC offset shifts in noisy industrial environments |
| Rail-to-Rail Output | Swings within 50 mV of rails at 1 mA - maximizes SNR when driving SAR ADCs with wide input ranges |
| Low Quiescent Current | 500 µA typical per amplifier - enables battery-powered precision front-ends with >1-year runtime |
| Unity-Gain Stability | No external compensation required - simplifies layout and reduces BOM count in gain-of-1 buffer applications |
Applications
| Thermocouple Signal Conditioning | RTD Bridge Amplification |
|---|---|
|
Use Scenario: Amplifying µV-level Seebeck voltages from Type K thermocouples in furnace temperature controllers with ambient temperature ranging from −20°C to 85°C. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with cold-junction compensation interface. Use Value: 60 µV max offset and 1 µV/°C drift ensure <±0.5°C absolute accuracy without software calibration across full industrial range. |
Use Scenario: Exciting and measuring 100 Ω Pt100 RTD elements in HVAC airflow sensors using constant-current source and ratiometric ADC. IC Role / Device Role / Timing Role: Low-bias-current, low-noise differential amplifier for 3-wire bridge readout. Use Value: 1 nA max input bias current prevents self-heating errors in high-resistance RTD legs; 8 nV/√Hz noise preserves 0.1°C resolution. |
| Optical Power Monitor Front-End | Strain Gauge Wheatstone Bridge |
|
Use Scenario: Converting photodiode current from fiber-optic transceivers into calibrated voltage for real-time link loss monitoring in 5G fronthaul equipment. IC Role / Device Role / Timing Role: Transimpedance amplifier with protected input handling transient surges from ESD events on optical ports. Use Value: ±32 V OVP withstands IEC 61000-4-2 contact discharge; 70 dB EMI rejection prevents false alarms from nearby RF power amplifiers. |
Use Scenario: Amplifying mV-level differential output from 350 Ω foil strain gauges mounted on structural load cells in industrial weighing systems. IC Role / Device Role / Timing Role: High-CMRR instrumentation amplifier stage rejecting common-mode noise from motor drives and inverters. Use Value: 130 dB CMRR at 25°C and 120 dB over full temperature range rejects 60 Hz pickup and PWM switching noise in factory floors. |
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 | Zero-drift chopper architecture; 1 µV max offset but higher 1/f noise (0.12 µV p-p); no OVP or EMI filter | Better DC precision in low-frequency (<10 Hz) applications; unsuitable for field-connected sensors or RF-noisy environments | Select AD8628ARZ only when ultra-low drift dominates over robustness and EMI immunity |
| LTC6268IS6#TRMPBF | Femtoampere bias current (3 fA typ); 4.3 MHz GBW; no OVP; 4.2 nV/√Hz noise; SOT-23-6 package | Superior for ultra-high-impedance pH or ion-selective electrodes; lacks input protection for industrial wiring | Choose LTC6268IS6#TRMPBF for lab-grade electrochemical sensors-not for factory-floor deployment |
Compared with AD8628ARZ and LTC6268IS6#TRMPBF, ADA4177-1ARMZ-R7 uniquely combines field-hardened input protection, industry-leading EMI rejection, and precision specs-making it the only option qualified for unshielded sensor interfaces in harsh electromagnetic environments without external protection circuitry.
Availability
ADA4177-1ARMZ-R7 is available at Aetrix Electronics and suitable for industrial instrumentation, optical network control circuits, and precision sensor signal conditioning requiring stable component supply across extended temperature and EMI-prone operating conditions.
Supply support for ADA4177-1ARMZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The ADA4177 family was engineered specifically for precision measurement in electrically hostile environments-integrating OVP, EMI filtering, and low-drift performance to replace discrete protection + amplifier solutions in industrial and communications infrastructure.
FAQ
What is the maximum supply voltage for ADA4177-1ARMZ-R7?
The ADA4177-1ARMZ-R7 supports dual supplies from ±2.5 V to ±18 V, with absolute maximum rating of 36 V total supply difference. Operation at ±15 V is fully specified per datasheet Table 3, delivering 14.95 V output swing at 1 mA load and 110 dB large-signal voltage gain. Exceeding ±18 V violates recommended operating conditions and risks parametric degradation.
Does ADA4177-1ARMZ-R7 require external components for input protection?
No, ADA4177-1ARMZ-R7 does not require external components for input protection. Its integrated circuitry provides ±32 V overvoltage protection relative to supply rails and 70 dB EMI rejection at 1000 MHz. Datasheet Figure 2 and Section "Active Overvoltage Protection" confirm internal clamping sustains 500 ms excursions without damage-eliminating need for series resistors or TVS diodes in most industrial sensor interfaces.
What package type is used for ADA4177-1ARMZ-R7?
ADA4177-1ARMZ-R7 uses an 8-lead SOIC package (Standard Small Outline IC) with 1.27 mm lead pitch and RoHS-compliant matte tin lead finish. Pin configuration matches Figure 4 in the Rev. E datasheet: pins 1, 5, and 8 are NIC; pin 2 is −IN; pin 3 is +IN; pin 4 is V−; pin 6 is OUT; pin 7 is V+. Thermal resistance θJA is 158°C/W per Table 5.
Can ADA4177-1ARMZ-R7 drive heavy capacitive loads?
Yes, ADA4177-1ARMZ-R7 is designed to drive capacitive loads exceeding 1000 pF without external compensation or stability issues. Datasheet General Description states "Outputs are stable with capacitive loads of more than 1000 pF with no external compensation." This capability simplifies anti-aliasing filter design and enables direct connection to ADC input capacitors or long PCB traces in data acquisition systems.
Is ADA4177-1ARMZ-R7 specified for operation across the full industrial temperature range?
Yes, ADA4177-1ARMZ-R7 is fully specified from −40°C to +125°C. Electrical Characteristics tables (Pages 4–7) include min/typ/max values across this range for parameters including offset voltage (120 µV max), offset drift (1 µV/°C max), input bias current (±2 nA), CMRR (120 dB min), and output swing (±4.75 V at ±5 V supply). This qualifies it for under-hood automotive, factory automation, and outdoor telecom equipment.
ADA4177-1ARMZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-MSOP
ADA4177-1ARMZ-R7 FAQ
1.How can I place an order for ADA4177-1ARMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4177-1ARMZ-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 ADA4177-1ARMZ-R7 reliable?
The price and inventory of ADA4177-1ARMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4177-1ARMZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4177-1ARMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4177-1ARMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4177-1ARMZ-R7?
ADA4177-1ARMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4177-1ARMZ-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 ADA4177-1ARMZ-R7?
For technical support, including ADA4177-1ARMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4177-1ARMZ-R7 requirements.
6.How does Aetrix verify that ADA4177-1ARMZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4177-1ARMZ-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 ADA4177-1ARMZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4177-1ARMZ-R7?
All ADA4177-1ARMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4177-1ARMZ-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 ADA4177-1ARMZ-R7 part is unused and in its original packaging.
Return procedure for ADA4177-1ARMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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