My Inquiry
My Account
Analog Devices Inc. AD8620ARZ-REEL
- Part No.:
- AD8620ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8620ARZ-REEL.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,697
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD8620ARZ-REEL from Analog Devices is a dual, precision JFET-input operational amplifier optimized for high-speed, low-noise, low-input-bias-current applications. It delivers 25 MHz gain bandwidth, 50 V/μs slew rate, 6 nV/√Hz voltage noise density at 1 kHz, ≤150 μV max offset voltage (B-grade), and operates from ±5 V to ±13 V supplies across −40°C to +125°C. It is used in photodiode amplifiers, ATE instrumentation, and high-fidelity audio signal conditioning.
For engineers reviewing the AD8620ARZ-REEL datasheet, AD8620ARZ-REEL pinout, AD8620ARZ-REEL application, or AD8620ARZ-REEL equivalent, this page provides verified specifications, SOIC-8 package details, real-world use cases in sensor front-ends and precision filtering, and validated alternative op-amps with documented performance trade-offs.
Technical Context
The AD8620ARZ-REEL employs Analog Devices' XFCB dielectrically isolated process with N-channel JFET inputs and thin-film resistor trimming, enabling ultralow input bias current (<10 pA typ at 25°C) and stable performance over temperature (≤2.5 nA max at +125°C). Its architecture eliminates phase reversal and supports unity-gain stability with >1000 pF capacitive loads.
It features rail-to-rail output swing within 1.2 V of supplies (e.g., ±3.8 V @ ±5 V), 137 dB channel separation at 10 kHz, and 0.01% settling in ≤600 ns for 10 V steps. Input common-mode range extends to ±10.5 V at ±13 V supply, and CMRR exceeds 90 dB over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 25 MHz - enables stable closed-loop operation up to 100 kHz with G = +100, suitable for fast precision filters and PLL loop filters. |
| Slew Rate | 50 V/μs (typ @ ±13 V) - supports clean 10 V step response in ≤600 ns to 0.01%, critical for DAC output buffering and pulse amplification. |
| Input Voltage Noise Density | 6 nV/√Hz @ 1 kHz - ensures minimal added noise in photodiode and sensor preamplifier stages where signal levels are sub-mV. |
| Input Bias Current | ≤10 pA (max @ 25°C), ≤2.5 nA (max @ +125°C) - preserves accuracy in high-impedance transducer interfaces (e.g., piezoelectric sensors, pH electrodes). |
| Offset Voltage (B-grade) | ≤150 μV (max @ −40°C to +125°C) - reduces DC error in precision integrators and instrumentation amplifier front-ends without frequent calibration. |
| Supply Range | ±5 V to ±13 V - supports both low-power portable test equipment and high-dynamic-range industrial data acquisition systems. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive sensors, downhole oilfield tools, and industrial PLC analog I/O modules. |
Pinout & Package
AD8620ARZ-REEL is housed in an 8-lead narrow SOIC (SOIC_N) package with standard JEDEC MS-012AC footprint (5.0 mm × 6.2 mm, 1.27 mm pitch). The device is not pin-compatible with AD8610 due to different internal configuration (dual vs. single).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives high-impedance loads up to ±45 mA; requires local 0.1 μF bypass capacitor to minimize supply-induced noise. |
| 2 | –INA | Inverting input of Amplifier A - high-impedance JFET node; PCB guard ring recommended to suppress leakage currents >10 pA. |
| 3 | +INA | Noninverting input of Amplifier A - referenced to system ground or common-mode voltage; matched layout critical for CMRR >90 dB. |
| 4 | V– | Negative supply rail - must be decoupled independently from V+; shared ground return increases PSRR degradation above 100 kHz. |
| 5 | V+ | Positive supply rail - accepts ±5 V to ±13 V; thermal derating required above 85°C ambient when ISY > 3.5 mA per amplifier. |
| 6 | OUTB | Amplifier B output - electrically isolated from OUTA; enables dual-path signal processing (e.g., differential drive, active filtering pairs). |
| 7 | –INB | Inverting input of Amplifier B - independent of Amplifier A; allows separate feedback networks without crosstalk (CS = 137 dB @ 10 kHz). |
| 8 | +INB | Noninverting input of Amplifier B - supports independent biasing; no internal connection to +INA or other pins. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed operation beyond input common-mode range (±10.5 V @ ±13 V); prevents latch-up in servo feedback paths and comparator overdrive scenarios. |
| Capacitive load drive | Stable with >1000 pF in unity-gain noninverting configuration - eliminates need for external isolation resistors in ADC driver applications. |
| Low distortion | THD+N < 0.0006% @ 20 kHz, 5 Vrms - meets Class-A audio and medical imaging signal chain requirements without post-amplifier correction. |
| High PSRR/CMRR | 110 dB PSRR and 110 dB CMRR @ DC - rejects power supply ripple and common-mode interference in noisy industrial environments. |
| Output swing | Within 1.2 V of rails @ 1 kΩ load - maximizes dynamic range in ±5 V systems, delivering >±3.8 V output for 12-bit+ ADC interface fidelity. |
Applications
| Photodiode Amplifier | ATE Precision Integrator |
|---|---|
Use Scenario: High-gain transimpedance stage converting nanoamp-level photocurrent from low-capacitance Si or InGaAs photodiodes into measurable voltage. IC Role / Device Role / Timing Role: Dual JFET-input op-amp configured as TIA with ultra-low IB (<10 pA) and 6 nV/√Hz noise to preserve SNR in low-light detection. Use Value: Enables sub-picoamp resolution without guard traces or ovenized biasing; 137 dB channel separation prevents crosstalk in multi-channel optical analyzers. |
Use Scenario: Precision analog integration in automated test equipment for charge accumulation, waveform generation, and time-domain reflectometry calibration. IC Role / Device Role / Timing Role: Dual op-amp implementing matched integrator pairs with ≤150 μV offset and 1 μV/°C drift to maintain linearity over temperature sweeps. Use Value: Reduces calibration frequency from daily to quarterly; 600 ns 0.01% settling supports >10 kSPS integration cycles without dead-time penalties. |
| Medical Imaging Front-End | High-Fidelity Audio Buffer |
Use Scenario: Signal conditioning for ultrasound receive channels and MRI gradient monitoring, requiring wide bandwidth and immunity to RF interference. IC Role / Device Role / Timing Role: Dual amplifier providing gain, filtering, and driver functions with 25 MHz GBW and 120 dB CS @ 300 kHz to isolate adjacent channel signals. Use Value: Eliminates need for discrete shielding between channels; 125°C rating supports compact packaging near heat-generating RF power stages. |
Use Scenario: Output buffer for high-resolution DACs in studio monitors and broadcast audio gear, demanding vanishingly low THD and wide voltage swing. IC Role / Device Role / Timing Role: Unity-gain follower with 50 V/μs slew rate and <0.0006% THD+N to preserve transient integrity and harmonic purity. Use Value: Delivers >110 dB SNR from 20 Hz–20 kHz; rail-swing capability supports ±4 V peak outputs into 600 Ω loads without clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2627AU/2K5 | Higher supply current (5.5 mA/amplifier), 20 V/μs slew rate, 3.8 nV/√Hz noise - lower noise but slower settling (1.2 μs to 0.01%). | Better for ultra-low-noise DC-coupled sensor nodes; less suitable for fast-settling ATE integrators. | Select OPA2627 when integrated noise below 10 Hz dominates performance; avoid when >100 kSPS sampling is required. |
| ADA4625-2ARZ | Lower input bias (0.6 pA typ), wider supply (±4.5 V to ±18 V), but reduced GBW (18 MHz) and higher offset (200 μV max). | Preferred for femtoamp electrochemical sensors; marginal for 20 kHz audio due to limited bandwidth. | Choose ADA4625-2 for ultra-high-Z biosensor interfaces; retain AD8620ARZ-REEL for balanced speed/noise/precision in mixed-signal test systems. |
Compared with OPA2627AU/2K5 and ADA4625-2ARZ, AD8620ARZ-REEL uniquely balances 25 MHz bandwidth, 50 V/μs slew rate, and ≤10 pA input bias - making it optimal for applications requiring simultaneous speed, precision, and low-noise in dual-channel configurations without sacrificing temperature stability.
Availability
AD8620ARZ-REEL is available at Aetrix Electronics and suitable for photodiode amplification, ATE integrator circuits, and medical imaging front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8620ARZ-REEL 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 AD8620ARZ-REEL belongs to the AD8610/AD8620 family of precision JFET op-amps engineered for applications demanding ultralow noise, minimal input bias current, and wide bandwidth - especially in instrumentation, medical diagnostics, and high-end audio.
FAQ
What is the maximum capacitive load the AD8620ARZ-REEL can drive without instability?
The AD8620ARZ-REEL is unconditionally stable driving ≥1000 pF in unity-gain noninverting configuration at ±5 V supply, and supports up to 10 nF with minor peaking. At ±13 V, it safely drives 2 μF loads in gain-of-2 configurations, as verified in Figure 48 of the Rev. F datasheet. For loads >1 nF, verify phase margin using network analyzer measurements.
Does the AD8620ARZ-REEL have built-in input protection diodes?
No - the AD8620ARZ-REEL omits clamp diodes between inputs due to its high-breakdown JFET input stage, eliminating distortion and leakage issues common in precision rectifier or comparator circuits. External series resistors (e.g., 10 kΩ) are recommended if input voltages exceed supply rails by >1 V, limiting current to safe levels while adding <25 μV offset.
How does the AD8620ARZ-REEL perform in single-supply operation?
The AD8620ARZ-REEL is specified for dual-supply operation only (±5 V to ±13 V). It is not characterized for true single-supply use (e.g., 0 V to +10 V). Attempting single-supply operation violates absolute maximum ratings for input voltage (VS− to VS+) and may cause phase reversal or permanent damage. Use rail-splitter or dedicated single-supply op-amps like AD8605 for such topologies.
What is the guaranteed offset voltage specification for AD8620ARZ-REEL over temperature?
The AD8620ARZ-REEL is a B-grade device: offset voltage is guaranteed ≤150 μV over the full −40°C to +125°C operating range, with typical drift of ≤1.5 μV/°C. This is confirmed in Table 1 (Rev. F, Page 3) under "Offset Voltage (AD8620B)" and "Offset Voltage Drift (AD8620B)" conditions.
Can the AD8620ARZ-REEL replace the AD8620ARZ in existing designs?
Yes - AD8620ARZ-REEL is the tape-and-reel packaging variant of AD8620ARZ, sharing identical electrical specifications, SOIC-8 footprint, and pinout. The "-REEL" suffix denotes packaging only (1000-piece reel); no performance or reliability differences exist. PCB layout, thermal design, and schematic connections remain fully interchangeable.
AD8620ARZ-REEL 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:
- 2
- Output Type:
- -
- Slew Rate:
- 60V/µs
- Gain Bandwidth Product:
- 25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 85 µV
- Current - Supply:
- 3mA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8620ARZ-REEL FAQ
1.How can I place an order for AD8620ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8620ARZ-REEL 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 AD8620ARZ-REEL reliable?
The price and inventory of AD8620ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8620ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8620ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8620ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8620ARZ-REEL?
AD8620ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8620ARZ-REEL 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 AD8620ARZ-REEL?
For technical support, including AD8620ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8620ARZ-REEL requirements.
6.How does Aetrix verify that AD8620ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8620ARZ-REEL 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 AD8620ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8620ARZ-REEL?
All AD8620ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8620ARZ-REEL, 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 AD8620ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8620ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD8620ARZ-REEL Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
