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Analog Devices Inc. AD8604DRZ-REEL
- Part No.:
- AD8604DRZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8604DRZ-REEL.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,946
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Product details
Overview
AD8604DRZ-REEL from Analog Devices is a quad-channel, 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, 500 µV max offset voltage (A grade), 750 µA/amplifier supply current, and operates across −40°C to +125°C - enabling high-accuracy signal conditioning in battery-powered instrumentation and sensor interfaces.
For engineers reviewing the AD8604DRZ-REEL datasheet, AD8604DRZ-REEL pinout, AD8604DRZ-REEL application, or AD8604DRZ-REEL equivalent, key selection criteria include rail-to-rail I/O swing at low supply voltage, ultra-low input bias current (0.2 pA typ), input offset drift (2 µV/°C), noise performance (33 nV/√Hz @ 1 kHz), and guaranteed operation in automotive-grade temperature range.
Technical Context
The AD8604DRZ-REEL implements a dual-differential-input rail-to-rail stage (NMOS + PMOS pairs) with Analog Devices' DigiTrim® post-package trimming, eliminating laser trimming while achieving sub-millivolt offset without sacrificing package size. Its unity-gain-stable architecture supports stable operation into capacitive loads up to 200 pF with minimal overshoot.
Output stage uses complementary NMOS/PMOS common-source configuration enabling true rail-to-rail swing: within 15 mV of V– and 20 mV of V+ at 1 mA load. Open-loop gain remains >80 dB (typ) into 2 kΩ, with PSRR (80 dB) and CMRR (89 dB typ at 5 V) maintained across full common-mode range - critical for precision single-supply ADC buffering and shunt current sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with Li-ion, 3.3 V, and 5 V logic systems without level shifting. |
| Gain Bandwidth Product | 8.4 MHz - supports stable closed-loop gain ≥10 up to ~800 kHz, suitable for multipole active filters and fast-settling sensor amplifiers. |
| Input Offset Voltage (max) | 600 µV (A grade, 25°C, VCM = 0–5 V) - ensures ≤0.012% gain error in 5 V full-scale 12-bit systems without calibration. |
| Input Bias Current (typ) | 0.2 pA - allows use with >100 MΩ source impedances (e.g., photodiode, pH electrode) without significant DC error. |
| Slew Rate | 6 V/µs - settles 4 V step within <1.0 µs to 0.01%, supporting audio and fast control loop applications. |
| Output Drive Capability | ±50 mA - drives 100 Ω loads directly; maintains rail-to-rail swing down to 10 mA sink/source at 5 V supply. |
| Voltage Noise Density | 33 nV/√Hz @ 1 kHz - limits integrated noise to ~1.2 µV RMS in 10 kHz bandwidth, preserving SNR in precision analog front-ends. |
Pinout & Package
AD8604DRZ-REEL is packaged in a 14-lead SOIC (R suffix), 3.9 mm × 8.7 mm body, 1.27 mm pitch, with exposed pad not present. Pin functions are defined per Figure 3 of Rev. I datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | −IN A | Inverting input of Amplifier A - referenced to internal differential pair; accepts common-mode voltage from V– to V+. |
| 2 | +IN A | Non-inverting input of Amplifier A - matched to Pin 1 for optimal CMRR and offset cancellation. |
| 3 | V+ | Positive supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin; powers all four amplifiers. |
| 4 | OUT B | Output of Amplifier B - rail-to-rail capable; drives loads ≥2 kΩ without phase reversal or instability. |
| 5 | −IN B | Inverting input of Amplifier B - electrically isolated from other channels; shares no internal nodes with A/C/D. |
| 6 | +IN B | Non-inverting input of Amplifier B - identical input structure and biasing as Pin 2. |
| 7 | OUT A | Output of Amplifier A - fully buffered; specified for ±50 mA drive and <1 µs settling to 0.01%. |
| 8 | V– | Negative supply rail (GND in single-supply config) - return path for all quiescent and output currents. |
| 9 | OUT D | Output of Amplifier D - independent output stage; supports simultaneous high-speed operation with other channels. |
| 10 | +IN C | Non-inverting input of Amplifier C - pin-compatible with standard quad op amp layouts (e.g., LM324). |
| 11 | −IN C | Inverting input of Amplifier C - matched pair with Pin 10; maintains 89 dB CMRR up to 100 kHz. |
| 12 | OUT C | Output of Amplifier C - same AC/DC specs as Pins 4 and 7; supports parallel output configurations. |
| 13 | +IN D | Non-inverting input of Amplifier D - identical input impedance (>1013 Ω) and bias current as other inputs. |
| 14 | −IN D | Inverting input of Amplifier D - completes quad channel set; enables independent gain stages per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3 V systems - e.g., buffers 0–3.3 V ADC inputs without clipping or headroom loss. |
| DigiTrim® offset calibration | Eliminates post-assembly stress-induced offset drift - achieves 600 µV max without laser trimming or external nulling. |
| No phase reversal | Guarantees monotonic output response during input overdrive - prevents latch-up or system instability in sensor fault conditions. |
| Qualified for automotive applications | Specified over −40°C to +125°C with AEC-Q200 alignment - supports engine control, cabin sensors, and ADAS signal chains. |
| Low 0.2 pA input bias current | Permits direct connection to high-Z sources (e.g., piezoelectric sensors, glass electrodes) without guard rings or T-network compensation. |
| Unity-gain stable | Operates reliably with gain = 1 without external compensation - simplifies design of voltage followers and active filters. |
Applications
| Current Sensing | Barcode Scanners |
|---|---|
|
Use Scenario: High-side shunt current monitoring in portable power tools with 12 V Li-ion battery and 3.3 V MCU. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting 50 mV shunt drop to 0–3.3 V for 12-bit SAR ADC sampling. Use Value: 600 µV max offset ensures <0.5% full-scale error at 10 A; rail-to-rail output eliminates need for level-shifting circuitry. |
Use Scenario: Signal conditioning for laser diode feedback photodiode in handheld barcode scanners. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with 100 kΩ feedback resistor and 33 nV/√Hz input noise. Use Value: 0.2 pA input bias current prevents photodiode leakage from dominating signal; 8 MHz bandwidth captures rapid bar transitions. |
| Battery-Powered Instrumentation | Multipole Filters |
|
Use Scenario: Front-end amplification in handheld multimeters measuring µA-level leakage currents. IC Role / Device Role / Timing Role: Ultra-high-impedance buffer (Zin >1013 Ω) isolating DMM input from 10 MΩ internal resistance. Use Value: Sub-picoampere bias current avoids measurement errors on high-resistance ranges; 750 µA/quadrant enables >100 hr battery life. |
Use Scenario: 4th-order elliptic low-pass filter in portable audio analyzers with 20 kHz cutoff. IC Role / Device Role / Timing Role: Quad amplifier implementing two biquad stages (Sallen-Key topology) with 8.4 MHz GBP. Use Value: Unity-gain stability and 6 V/µs slew rate prevent distortion on 1 Vpp 15 kHz tones; low THD+N (<0.001%) preserves signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4340UA | Wider supply range (2.7–5.5 V), but higher 1.5 mV max offset and 2.5 mA/quadrant supply current. | Lacks automotive qualification; not specified beyond +85°C ambient. | Prefer AD8604DRZ-REEL for battery life-critical or extended-temperature designs requiring <1 mV offset. |
| LMV324IDR | Lower cost, but only 1 MHz GBP, 1 V/µs slew rate, and 3 mV max offset; no rail-to-rail input. | Not suitable for precision sensor buffering or wideband filtering where dynamic range matters. | Select AD8604DRZ-REEL when 8 MHz bandwidth, rail-to-rail I/O, or sub-mV offset are mandatory. |
Compared with OPA4340UA and LMV324IDR, AD8604DRZ-REEL provides superior DC precision, lower power, and guaranteed rail-to-rail operation - making it optimal for space-constrained, battery-powered, and automotive-qualified signal chains where accuracy and efficiency coexist.
Availability
AD8604DRZ-REEL is available at Aetrix Electronics and suitable for current sensing, barcode scanners, battery-powered instrumentation, multipole filters, and sensor signal conditioning requiring stable component supply across industrial and automotive temperature ranges.
Supply support for AD8604DRZ-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 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 ultra-low input bias current are essential.
FAQ
What is the maximum operating temperature range for AD8604DRZ-REEL?
AD8604DRZ-REEL is specified for continuous operation from −40°C to +125°C, meeting extended industrial and automotive under-hood requirements. This rating is validated per the datasheet's Absolute Maximum Ratings table and confirmed in electrical characteristics across temperature sweeps in Tables 1 and 2.
Does AD8604DRZ-REEL support true rail-to-rail input common-mode voltage?
Yes, AD8604DRZ-REEL features a dual-input-stage architecture (NMOS + PMOS differential pairs) that extends the input common-mode range from V– to V+, verified in Figures 9 and 10 of the Rev. I datasheet. This enables direct interfacing with CMOS ASIC outputs and unbuffered ADC references without external level-shifting networks.
Can AD8604DRZ-REEL drive capacitive loads without oscillation?
AD8604DRZ-REEL is unity-gain stable and characterized for loads up to 200 pF with minimal overshoot (<10%), as shown in Figures 45–46. For heavier capacitive loads (>500 pF), a small series resistor (10–50 Ω) at the output is recommended to maintain phase margin above 45°.
Is AD8604DRZ-REEL pin-compatible with legacy quad op amps like LM324?
AD8604DRZ-REEL uses the industry-standard 14-lead SOIC (R) footprint and pinout shown in Figure 3, matching LM324, TL074, and OPA4340 in physical layout. However, its rail-to-rail input/output and ultra-low bias current provide functional superiority - no PCB changes are needed for drop-in replacement in most non-critical gain configurations.
What packaging and reel information applies to AD8604DRZ-REEL?
AD8604DRZ-REEL is supplied in a 14-lead SOIC package (body size 3.9 mm × 8.7 mm) on 13-inch reels with 2,500 units per reel. The "DRZ" suffix denotes SOIC packaging, and "REEL" indicates tape-and-reel delivery - compliant with JEDEC J-STD-020 moisture sensitivity level 3 (MSL3).
AD8604DRZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- DigiTrim®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-SOIC
AD8604DRZ-REEL FAQ
1.How can I place an order for AD8604DRZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8604DRZ-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 AD8604DRZ-REEL reliable?
The price and inventory of AD8604DRZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8604DRZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8604DRZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8604DRZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8604DRZ-REEL?
AD8604DRZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8604DRZ-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 AD8604DRZ-REEL?
For technical support, including AD8604DRZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8604DRZ-REEL requirements.
6.How does Aetrix verify that AD8604DRZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8604DRZ-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 AD8604DRZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8604DRZ-REEL?
All AD8604DRZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8604DRZ-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 AD8604DRZ-REEL part is unused and in its original packaging.
Return procedure for AD8604DRZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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