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Analog Devices Inc. ADA4627-1BRZ-R7
- Part No.:
- ADA4627-1BRZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4627-1BRZ-R7.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,561
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Product details
Overview
ADA4627-1BRZ-R7 from Analog Devices is a 30 V, JFET-input precision operational amplifier optimized for high-impedance sensor interfaces and low-noise signal conditioning. It delivers 19 MHz gain bandwidth, 82 V/μs slew rate, 6.1 nV/√Hz voltage noise at 1 kHz, 200 μV max offset voltage, and operates across −40°C to +125°C with ±5 V to ±15 V dual supply. Used in photodiode amplifiers and DAC output stages where dc accuracy and wideband fidelity are critical.
For engineers reviewing the ADA4627-1BRZ-R7 datasheet, ADA4627-1BRZ-R7 pinout, ADA4627-1BRZ-R7 application, or ADA4627-1BRZ-R7 equivalent, key selection criteria include input bias current (≤5 pA), offset drift (≤2 μV/°C), unity-gain stability, SOIC_N package compatibility, and guaranteed performance over extended temperature range - all verified per Rev. F datasheet.
Technical Context
The ADA4627-1BRZ-R7 integrates a JFET input stage with precision bipolar output stage, enabling ultra-low input bias current while maintaining high slew rate and low distortion. Its fully compensated internal architecture ensures stable unity-gain operation without external compensation.
It features rail-referenced input voltage range (±11 V at ±15 V supply), no phase reversal behavior, and robust ESD protection (4 kV HBM). The device supports precision closed-loop configurations up to 120 dB open-loop gain and 116 dB CMRR, making it suitable for high-resolution instrumentation requiring minimal error sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 19 MHz - enables stable unity-gain amplification of signals up to ~15 MHz with ≤1% gain error. |
| Slew Rate | 82 V/μs - supports full-scale 10 V step response in <600 ns without slewing distortion. |
| Voltage Noise Density | 6.1 nV/√Hz @ 1 kHz - preserves SNR in low-level analog front-ends such as photodiode transimpedance stages. |
| Input Bias Current | 5 pA max - minimizes voltage error across high-impedance sources (>1 GΩ) at room temperature. |
| Offset Voltage | 200 μV max - limits initial dc error to <0.002% of 10 V full-scale output in precision gain stages. |
| CMRR | 116 dB typical - rejects >1.5 million:1 common-mode interference in differential sensing applications. |
| Supply Range | ±5 V to ±15 V - accommodates industrial and test equipment rails while maintaining specified ac/dc performance. |
Pinout & Package
ADA4627-1BRZ-R7 is packaged in an 8-lead SOIC_N (R-8) surface-mount package with exposed pad thermally connected to V–. Pin 1 is top-left corner marker; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Null / Not Connected | No internal connection; must be left floating or tied to ground per layout best practice. |
| 2 | Inverting Input (−IN) | High-impedance JFET node; guard trace required to prevent leakage-induced offset drift. |
| 3 | Noninverting Input (+IN) | High-impedance JFET node; matched to −IN for optimal CMRR and bias current cancellation. |
| 4 | Negative Supply (V−) | Primary return path; exposed pad must be soldered to PCB ground plane for thermal and noise performance. |
| 5 | Null / Not Connected | No internal connection; must be left floating or tied to ground. |
| 6 | Output (OUT) | Capable of ±45 mA drive into 1 kΩ load; maintains linearity up to ±12.3 V swing at ±15 V supply. |
| 7 | Positive Supply (V+) | Power rail input; requires local 0.01 μF ceramic + 1 μF bulk bypass within 3 mm. |
| 8 | Null / Not Connected | No internal connection; must be left floating or tied to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | ≤5 pA max ensures <5 μV error across 1 GΩ source impedance at 25°C. |
| Low 1/f noise | 0.86 μV p-p (0.1 Hz–10 Hz) enables stable dc-coupled measurements in precision weigh scales and strain gauges. |
| No output phase reversal | Guaranteed non-inverting behavior even when inputs exceed supply rails by 0.3 V - eliminates latch-up risk in overvoltage transients. |
| Extended temperature operation | Specified from −40°C to +125°C with ≤660 μV max offset and ≤3 μV/°C drift - suitable for under-hood automotive and downhole oilfield electronics. |
| High PSRR and CMRR | 112 dB PSRR and 116 dB CMRR suppress power supply ripple and common-mode interference in noisy industrial environments. |
Applications
| Photodiode Amplifier | Precision Instrumentation |
|---|---|
Use Scenario: Converting weak current from silicon photodiodes (nA–μA range) into stable, low-drift voltage output for optical power monitoring. IC Role / Device Role / Timing Role: Transimpedance amplifier with JFET input preserving signal integrity and minimizing dark current error. Use Value: 5 pA input bias current prevents saturation at high feedback resistances (>100 MΩ); 6.1 nV/√Hz noise enables sub-pW resolution. |
Use Scenario: Front-end amplification in portable multimeters, calibration standards, and automated test equipment requiring 16-bit+ effective resolution. IC Role / Device Role / Timing Role: Precision dc-coupled gain block with ultra-stable offset and drift for reference-grade signal conditioning. Use Value: 200 μV max offset and 2 μV/°C drift ensure <0.005% reading error over full industrial temperature range. |
| DAC Output Amplifier | Phase-Locked Loop Filter |
Use Scenario: Buffering and level-shifting high-resolution DAC outputs (e.g., 18-bit AD5791) in precision voltage sources and programmable power supplies. IC Role / Device Role / Timing Role: Low-noise, low-distortion output driver with rail-compatible output swing and fast settling. Use Value: 82 V/μs slew rate and 550 ns 0.01% settling support 1 MSPS update rates without slewing artifacts. |
Use Scenario: Active loop filter in high-stability PLLs for RF synthesizers and clock recovery circuits demanding low integrated phase noise. IC Role / Device Role / Timing Role: Low-bias-current integrator in third-order charge-pump PLL filters to minimize reference spurs and long-term drift. Use Value: 5 pA input bias current prevents capacitor charging errors that degrade lock time and increase jitter accumulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4625-1ARMZ-R7 | Lower supply voltage (±5 V to ±15 V same), 16 MHz GBW, 55 V/μs slew rate, 5.8 nV/√Hz noise, 50 μV max offset. | Better offset and noise, but lower speed; suited for battery-powered precision instruments where power is constrained. | Select ADA4625-1ARMZ-R7 when ultra-low offset (<50 μV) and lower quiescent current (3.4 mA vs. 7.5 mA) outweigh bandwidth needs. |
| OPA140AIDBVR | JFET input, 11 MHz GBW, 20 V/μs slew rate, 5.1 nV/√Hz noise, 125 μV max offset, −40°C to +125°C rated. | Lower bandwidth and slew rate; optimized for ultra-low power (1.8 mA) and single-supply operation (4.5 V to 36 V). | Choose OPA140AIDBVR for single-supply systems or when 11 MHz bandwidth suffices and supply headroom is limited. |
Compared with ADA4627-1BRZ-R7, ADA4625-1ARMZ-R7 offers superior dc precision at reduced speed, while OPA140AIDBVR trades bandwidth for lower power and single-supply flexibility - neither is pin-compatible, requiring layout revision for substitution.
Availability
ADA4627-1BRZ-R7 is available at Aetrix Electronics and suitable for photodiode amplifiers, precision instrumentation, and DAC output buffering requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for ADA4627-1BRZ-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.
The ADA4627-1BRZ-R7 belongs to Analog Devices' high-speed precision op amp family, engineered for applications demanding simultaneous excellence in dc accuracy, low noise, and wideband dynamic response - especially in harsh-environment measurement systems.
FAQ
What is the maximum operating supply voltage for ADA4627-1BRZ-R7?
The ADA4627-1BRZ-R7 has an absolute maximum supply voltage rating of 36 V (±18 V), but its specified operating range is ±5 V to ±15 V. Operation beyond ±15 V may cause parametric degradation or reliability risk; design margins should maintain VSY ≤ ±15 V for guaranteed performance per Rev. F datasheet.
Does ADA4627-1BRZ-R7 require external compensation?
No, ADA4627-1BRZ-R7 is internally compensated for unity-gain stability. Unlike its decompensated sibling ADA4637-1, it does not require minimum noise gain and can be used in gain-of-one buffers or inverting configurations without added capacitors or resistors.
Is the exposed pad on ADA4627-1BRZ-R7 electrically connected?
Yes - the exposed pad on ADA4627-1BRZ-R7 (SOIC_N package) is internally connected to the V− pin. Per datasheet Note 2, it must be soldered to a PCB copper plane tied to the negative supply or system ground to ensure proper thermal dissipation and low-noise performance.
Can ADA4627-1BRZ-R7 drive heavy capacitive loads?
ADA4627-1BRZ-R7 exhibits increasing overshoot with load capacitance >100 pF in unity-gain configuration. For CL > 100 pF, isolation resistor (e.g., 20–50 Ω) between output and load is recommended. Datasheet Figure 24 shows 10% overshoot at 1 nF; stability must be verified per application layout.
What is the input voltage range specification for ADA4627-1BRZ-R7?
At ±15 V supply, ADA4627-1BRZ-R7 supports an input voltage range of −11 V to +11 V (relative to ground). Exceeding this range risks forward-biasing ESD diodes and causing phase reversal or damage - though the device itself does not phase reverse, input clamping current must remain <5 mA via series resistance.
ADA4627-1BRZ-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:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 84V/µs
- Gain Bandwidth Product:
- 19 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 70 µV
- Current - Supply:
- 7mA
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4627-1BRZ-R7 FAQ
1.How can I place an order for ADA4627-1BRZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4627-1BRZ-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 ADA4627-1BRZ-R7 reliable?
The price and inventory of ADA4627-1BRZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4627-1BRZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4627-1BRZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4627-1BRZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4627-1BRZ-R7?
ADA4627-1BRZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4627-1BRZ-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 ADA4627-1BRZ-R7?
For technical support, including ADA4627-1BRZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4627-1BRZ-R7 requirements.
6.How does Aetrix verify that ADA4627-1BRZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4627-1BRZ-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 ADA4627-1BRZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4627-1BRZ-R7?
All ADA4627-1BRZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4627-1BRZ-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 ADA4627-1BRZ-R7 part is unused and in its original packaging.
Return procedure for ADA4627-1BRZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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