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Analog Devices Inc. AD8602DR
- Part No.:
- AD8602DR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8602DR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,971
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Product details
Overview
AD8602DR from Analog Devices is a dual, rail-to-rail input/output precision CMOS operational amplifier optimized for single-supply operation from 2.7 V to 5.5 V. It delivers 8 MHz gain bandwidth, 5 V/µs slew rate, and maximum 500 µV offset voltage at 25°C - enabling high-fidelity signal conditioning in battery-powered instrumentation, current sensing, and sensor front-ends.
For engineers reviewing the AD8602DR datasheet, AD8602DR pinout, AD8602DR application, or AD8602DR equivalent, key selection criteria include rail-to-rail I/O swing at low supply voltage, ultra-low input bias current (0.2 pA typ), wide common-mode range (0 V to VS), and guaranteed operation over −40°C to +125°C industrial temperature range.
Technical Context
The AD8602DR employs Analog Devices' DigiTrim® post-package trimming to achieve low offset without laser trimming, ensuring stability across mechanical stress and package variants. Its dual-input stage - parallel NMOS and PMOS differential pairs - enables true rail-to-rail common-mode input range (0 V to VS) with seamless transition between input stages.
Output stage uses complementary NMOS/PMOS common-source configuration for rail-to-rail swing; output voltage reaches within 15 mV of VS and 20 mV of GND at 1 mA load. Open-loop gain is 80 dB typical (RL = 2 kΩ), and phase margin is 50°–55°, ensuring unity-gain stability with minimal external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct interface with Li-ion, 3.3 V, and 5 V logic systems without level shifting. |
| Offset Voltage (max) | 500 µV at 25°C - ensures <0.05% gain error in 10-bit ADC driver applications with ±2.5 V full-scale. |
| Gain Bandwidth Product | 8.4 MHz - enables stable closed-loop gain ≥10 up to ~800 kHz for anti-aliasing filter design. |
| Slew Rate | 6 V/µs at 5 V supply - supports clean 1 VPP output at 1 MHz without slewing distortion. |
| Input Bias Current | 0.2 pA typical - allows use with >100 MΩ source impedances (e.g., photodiode, pH electrode) without significant DC error. |
| Common-Mode Range | 0 V to VS - permits direct buffering of CMOS ASIC outputs and single-supply ADC inputs without clamping diodes. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive sensors and industrial motor control feedback loops. |
Pinout & Package
AD8602DR is housed in an 8-lead narrow SOIC (R suffix) package with standard dual op amp pinout and surface-mount footprint compatible with JEDEC MS-012AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Rail-to-rail sourcing/sinking up to ±50 mA; connects directly to ADC input or DAC buffer load. |
| 2 - –IN A | Inverting input A | High-impedance node (0.2 pA bias); requires matched trace impedance in differential configurations. |
| 3 - +IN A | Non-inverting input A | Accepts common-mode voltages from GND to VS; used for reference-biased sensor interfaces. |
| 4 - V– | Negative supply / GND | Ground reference for both amplifiers; must be low-impedance return path for all analog signals. |
| 5 - V+ | Positive supply | Accepts 2.7–5.5 V; bypass capacitor (0.1 µF ceramic) required within 5 mm of this pin. |
| 6 - +IN B | Non-inverting input B | Independent high-Z input for second channel; enables dual-sensor readout or active filter sections. |
| 7 - –IN B | Inverting input B | Matches Pin 2 performance; supports independent gain-setting resistors per channel. |
| 8 - OUT B | Amplifier B output | Electrically isolated from OUT A; allows separate signal paths without crosstalk (typ. −90 dB at 10 kHz). |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed under overdrive conditions - eliminates latch-up risk when input exceeds rails during power-up or transient events. |
| Unity-gain stable | Operates unconditionally stable with gain = 1; no external compensation required for voltage follower or transimpedance configurations. |
| Low distortion | THD+N <0.001% at 1 kHz (G = 1, RL = 2 kΩ) - preserves audio fidelity and sensor waveform integrity in ac-coupled paths. |
| Qualified for automotive | AEC-Q100 Grade 1 qualified - meets reliability and qualification requirements for body electronics and infotainment subsystems. |
| Low supply current | 750 µA per amplifier at 5 V - enables dual-channel signal conditioning in sub-2 mA total system standby power budgets. |
Applications
| Current Sensing | Barcode Scanners |
|---|---|
|
Use Scenario: High-side shunt current monitoring in portable medical devices with 3.3 V supply and 10-bit microcontroller ADC. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail input accepting 0–3.3 V common-mode; drives ADC input directly. Use Value: 500 µV max offset ensures ≤0.05% full-scale error at 100 mV shunt drop; 0.2 pA bias prevents leakage-induced drift in high-R sense networks. |
Use Scenario: Laser diode modulation and photodiode signal amplification in handheld barcode scanners. IC Role / Device Role / Timing Role: Transimpedance amplifier for photodiode current conversion and buffer for laser driver control loop. Use Value: 8 MHz bandwidth supports >1 MHz pulse detection; rail-to-rail output swings fully to 3.3 V logic levels for FPGA timing capture. |
| Battery-Powered Instrumentation | Multipole Filters |
|
Use Scenario: Signal conditioning front-end for handheld multimeters and portable oscilloscope probes operating from single-cell Li-ion (2.7–4.2 V). IC Role / Device Role / Timing Role: Dual-channel programmable gain amplifier (PGA) with selectable gain resistors and ADC driver. Use Value: 2.7 V minimum supply enables operation down to battery EOD; 750 µA per amplifier extends runtime beyond 100 hours on 500 mAh cell. |
Use Scenario: 4th-order active low-pass filter in audio line drivers and sensor signal preprocessing circuits. IC Role / Device Role / Timing Role: Dual op amp implementing two 2nd-order Sallen-Key stages with precise pole placement. Use Value: 8.4 MHz GBP and 5.2 V/µs slew rate maintain filter group delay flatness to 100 kHz; low noise (33 nV/√Hz) avoids SNR degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C drift vs. AD8602DR's 2 µV/°C; higher quiescent current (17 µA vs. 0.75 mA). | Better for dc-critical thermocouple amplifiers; less suitable for high-speed filter or audio where AD8602DR's 8 MHz bandwidth is needed. | Select OPA2333AIDR only when long-term dc stability dominates over speed and power. |
| MCP6V82-E/SN | Chopper-stabilized; 12 µV max offset; lower bandwidth (1.5 MHz); same SOIC-8 package. | Lower cost for low-bandwidth sensor amps; cannot replace AD8602DR in >100 kHz applications like barcode scanner front-ends. | Choose MCP6V82-E/SN for cost-sensitive, sub-100 kHz industrial sensors where 8 MHz is unnecessary. |
Compared with OPA2333AIDR and MCP6V82-E/SN, AD8602DR uniquely balances 8 MHz bandwidth, rail-to-rail I/O, sub-1 µA input bias, and 750 µA supply current - making it optimal for dual-channel, mixed-signal, battery-operated systems requiring both precision and speed.
Availability
AD8602DR is available at Aetrix Electronics and suitable for current sensing, barcode scanner signal chains, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8602DR 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 AD860x family was designed specifically for precision, low-voltage, single-supply applications - targeting sensor interfaces, portable instrumentation, and automotive subsystems where rail-to-rail operation and low power are critical.
FAQ
What is the maximum operating temperature range for the AD8602DR?
The AD8602DR is specified for operation from −40°C to +125°C across its entire electrical performance envelope. This extended industrial temperature range is validated per AEC-Q100 Grade 1 requirements, making AD8602DR suitable for under-dash automotive modules and industrial motor control enclosures where ambient temperatures exceed 105°C.
Does the AD8602DR require external compensation for unity-gain stability?
No, the AD8602DR is internally compensated and unity-gain stable. It operates reliably as a voltage follower or in any closed-loop configuration with gain ≥1 without added capacitors or resistors. This simplifies PCB layout and eliminates tuning steps in production test for applications like ADC input buffers and sensor signal followers.
Can the AD8602DR drive a 600 Ω audio load directly?
The AD8602DR can source/sink ±50 mA, supporting 600 Ω loads at ≤3 VPP output swing with minimal distortion (<0.001% THD+N at 1 kHz). However, sustained 600 Ω loading increases thermal dissipation and may reduce output swing near rails; for continuous line-level audio, a dedicated audio driver or series resistor is recommended.
How does the DigiTrim® technology in the AD8602DR improve offset performance?
DigiTrim® performs post-package offset trimming using on-chip digital calibration, correcting mechanical stress-induced offsets from solder reflow and packaging. This achieves ≤500 µV max offset in SOIC-8 without laser trimming - a capability previously unavailable in small-outline packages - and ensures consistent performance across AD8602DR units regardless of board assembly process.
Is the AD8602DR pin-compatible with other dual op amps in SOIC-8 packages?
The AD8602DR uses the industry-standard dual op amp pinout (OUT A, –IN A, +IN A, V–, V+, +IN B, –IN B, OUT B), matching pin-for-pin layouts of LM358, TL072, and OPA2340. However, differences in input structure (CMOS vs. bipolar/JFET), supply range, and rail-to-rail behavior require verification of biasing and stability in legacy designs before drop-in replacement.
AD8602DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- DigiTrim®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 8.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 1.3 mV
- Current - Supply:
- 750µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8602DR FAQ
1.How can I place an order for AD8602DR through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8602DR 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 AD8602DR reliable?
The price and inventory of AD8602DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8602DR is usually 5 days.
3.What payment methods are accepted for AD8602DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8602DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8602DR?
AD8602DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8602DR 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 AD8602DR?
For technical support, including AD8602DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8602DR requirements.
6.How does Aetrix verify that AD8602DR is sourced from the original manufacturer or authorized distributors?
All AD8602DR 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 AD8602DR meets industry standards.
7.What is the process for return or replacement of AD8602DR?
All AD8602DR units undergo pre-shipment inspection (PSI). If there is an issue with AD8602DR, 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 AD8602DR part is unused and in its original packaging.
Return procedure for AD8602DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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