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Analog Devices Inc. AD8604ARZ-REEL
- Part No.:
- AD8604ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8604ARZ-REEL.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,001
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Product details
Overview
AD8604ARZ-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 AD8604ARZ-REEL datasheet, AD8604ARZ-REEL pinout, AD8604ARZ-REEL application, or AD8604ARZ-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), offset drift (2 µV/°C), noise performance (33 nV/√Hz @ 1 kHz), and automotive-grade temperature qualification.
Technical Context
The AD8604ARZ-REEL uses 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 architecture (NMOS + PMOS parallel pairs) enables true rail-to-rail common-mode input range (0 V to VS) and eliminates phase reversal.
Output stage employs complementary NMOS/PMOS common-source configuration for rail-to-rail swing - delivering 20 mV from VS and 15 mV from GND at 1 mA load. Open-loop gain remains >80 dB (typ) with 2 kΩ load, though it decreases under heavier loads - a known characteristic of rail-to-rail output topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 8.4 MHz - supports stable unity-gain and high closed-loop bandwidths up to ~1 MHz in AV = 10 configurations. |
| Slew Rate | 6 V/µs - enables clean 100 kHz full-scale sine output with <1% distortion into 10 kΩ. |
| Input Offset Voltage (max) | 600 µV (A grade, 25°C) - ensures ≤1.2 mV total error in 2 V full-scale 12-bit systems without calibration. |
| Supply Current / Amplifier | 750 µA (typ, 5 V) - allows four channels to operate within 3 mA total, ideal for always-on sensor front-ends. |
| Input Bias Current | 0.2 pA (typ) - permits use with >100 MΩ source impedances (e.g., photodiode, pH electrode) without significant DC error. |
| CMRR | 89 dB (typ, 5 V) - rejects >89% of common-mode interference in single-supply mixed-signal systems. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
AD8604ARZ-REEL is packaged in a 14-lead SOIC (R suffix), with standard quad op amp pinout and no NC pins. The package is RoHS-compliant, halogen-free, and rated for moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | −IN A | Inverting input of Channel A - high-impedance node requiring guarded layout for sub-pA bias current integrity. |
| 2 | +IN A | Non-inverting input of Channel A - accepts signals from 0 V to VS without clipping. |
| 3 | V+ | Positive supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 4 | OUT B | Output of Channel B - rail-to-rail swing supports direct interfacing to 3.3 V ADCs or DACs. |
| 5 | −IN B | Inverting input of Channel B - electrically identical to Pin 1; shares same internal structure. |
| 6 | +IN B | Non-inverting input of Channel B - fully independent channel with matched specs to Channel A. |
| 7 | OUT A | Output of Channel A - capable of sourcing/sinking ±50 mA (short-term) with <250 mV drop at 10 mA. |
| 8 | V− | Negative supply (GND) - return path for all four amplifiers; requires low-impedance ground plane. |
| 9 | OUT D | Output of Channel D - identical performance to OUT A/B/C; supports multi-channel filtering or averaging. |
| 10 | −IN C | Inverting input of Channel C - part of isolated quad core; no crosstalk with other channels per datasheet. |
| 11 | +IN C | Non-inverting input of Channel C - supports independent biasing; usable as dedicated reference buffer. |
| 12 | V+ | Positive supply rail (redundant connection) - improves power delivery robustness in high-noise layouts. |
| 13 | OUT C | Output of Channel C - rail-to-rail swing enables simultaneous driving of multiple low-voltage logic inputs. |
| 14 | −IN D | Inverting input of Channel D - matches Pin 1/5/10; validated for <1 µV matching between channels. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed over full input common-mode range (0 V to VS), eliminating latch-up risk in overdriven sensor buffers. |
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3 V systems - e.g., direct buffering of 0–3.3 V ASIC outputs or ADC inputs. |
| DigiTrim® trimming | Post-package offset correction achieves 500 µV max without laser trimming - ensures consistency across SOT-23, MSOP, TSSOP, and SOIC packages. |
| Low 1/f noise | 0.1 Hz–10 Hz input voltage noise = 0.5 µVPP - critical for precision DC-coupled medical or weigh-scale amplifiers. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) - validated for engine control, battery monitoring, and ADAS sensor signal chains. |
| Unity-gain stable | Operates unconditionally stable with gain = 1 and capacitive loads ≤200 pF - simplifies design of active filters and I/V converters. |
Applications
| Current Sensing | Barcode Scanners |
|---|---|
|
Use Scenario: High-side shunt current measurement in 3.3 V motor drivers with 50 mΩ sense resistor. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail input accepting common-mode voltage up to 3.3 V. Use Value: 600 µV max offset contributes <±0.012% full-scale error at 1 A; 750 µA quiescent current minimizes self-heating drift. |
Use Scenario: Signal conditioning of photodiode output in handheld barcode scanner front-end. IC Role / Device Role / Timing Role: Transimpedance amplifier with 0.2 pA input bias current preserving weak photocurrent integrity. Use Value: Enables >100 MΩ feedback resistors without significant DC error; 8 MHz bandwidth supports fast pulse decoding. |
| Battery-Powered Instrumentation | Multipole Filters |
|
Use Scenario: Front-end amplifier for portable multimeter measuring 0–200 mV DC with 16-bit resolution. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer driving SAR ADC reference and input paths. Use Value: 2 µV/°C drift limits thermal error to <0.24 mV over 120°C range; 33 nV/√Hz noise preserves ENOB in 100 kHz bandwidth. |
Use Scenario: 4th-order active low-pass filter (10 kHz cutoff) in audio anti-aliasing path. IC Role / Device Role / Timing Role: Quad op amp implementing two biquad stages with matched gain-bandwidth. Use Value: 8.4 MHz GBP ensures <0.1 dB passband flatness; rail-to-rail output drives 600 Ω audio line without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Chopper-stabilized (0.02 µV/°C drift), higher supply current (17 µA/ch), lower GBW (350 kHz). | Better for µV-level DC stability; unsuitable for >100 kHz signal paths. | Select when ultra-low drift dominates over speed and power - not for broadband sensor or audio use. |
| MCP6004-E/SL | Higher offset (1.5 mV max), lower GBW (1 MHz), wider supply range (1.8–6.0 V), lower cost. | Acceptable for 8–10 bit systems; lacks automotive temp rating and low-noise performance. | Choose for cost-sensitive consumer devices where 12-bit precision and extended temperature are not required. |
Compared with OPA2333AIDR and MCP6004-E/SL, AD8604ARZ-REEL uniquely balances 8 MHz bandwidth, 500 µV offset, 0.2 pA bias, and −40°C to +125°C operation - making it optimal for automotive sensor signal chains and portable test equipment demanding both speed and precision.
Availability
AD8604ARZ-REEL is available at Aetrix Electronics and suitable for current sensing, barcode scanners, and battery-powered instrumentation requiring stable component supply across automotive, industrial, and medical design cycles.
Supply support for AD8604ARZ-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 to deliver precision performance in space-constrained, low-voltage systems - targeting sensor interfaces, portable instrumentation, and automotive subsystems where rail-to-rail operation and low power are essential.
FAQ
What is the maximum operating supply voltage for AD8604ARZ-REEL?
The absolute maximum supply voltage for AD8604ARZ-REEL is 6 V, but the recommended operating range is 2.7 V to 5.5 V per the datasheet. Operation above 5.5 V risks parametric shift and reduced reliability. At 5.5 V, AD8604ARZ-REEL maintains full rail-to-rail output swing and specified offset, slew rate, and bandwidth - verified across −40°C to +125°C.
Does AD8604ARZ-REEL support true rail-to-rail input at 2.7 V supply?
Yes, AD8604ARZ-REEL supports rail-to-rail input common-mode range (0 V to VS) down to 2.7 V. Its dual-input-stage architecture (NMOS + PMOS differential pairs) ensures continuous operation across the full supply range without dead zones or phase reversal - confirmed in Figures 9 and 10 of the Rev. I datasheet.
Can AD8604ARZ-REEL drive a 600 Ω audio load directly?
AD8604ARZ-REEL can drive a 600 Ω load with ≤0.1% THD+N at 1 kHz when configured for unity gain and powered from 5 V, as shown in Figure 38. Output swing remains >4.7 V p-p under this condition. For sustained 10 mA output, ensure thermal derating per θJA = 115°C/W (SOIC) and use adequate PCB copper area.
Is AD8604ARZ-REEL pin-compatible with other AD860x variants?
AD8604ARZ-REEL (14-lead SOIC) shares identical pinout with AD8604ARMZ (14-lead TSSOP) and AD8604ARQZ (16-lead QSOP, pins 9–16 mapped identically; pins 1–8 match SOIC/TSSOP). However, it is not pin-compatible with AD8601 (5-lead SOT-23) or AD8602 (8-lead MSOP/SOIC) due to differing channel count and footprint.
What is the typical input voltage noise density of AD8604ARZ-REEL at 10 kHz?
The typical input voltage noise density of AD8604ARZ-REEL is 18 nV/√Hz at 10 kHz, consistent across all grades and supply voltages (2.7 V and 5 V), as specified in Tables 1 and 2 of the Rev. I datasheet and verified in Figures 39–42. This value remains stable over temperature and load conditions.
AD8604ARZ-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:
- 80 µV
- 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
AD8604ARZ-REEL FAQ
1.How can I place an order for AD8604ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8604ARZ-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 AD8604ARZ-REEL reliable?
The price and inventory of AD8604ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8604ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8604ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8604ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8604ARZ-REEL?
AD8604ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8604ARZ-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 AD8604ARZ-REEL?
For technical support, including AD8604ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8604ARZ-REEL requirements.
6.How does Aetrix verify that AD8604ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8604ARZ-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 AD8604ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8604ARZ-REEL?
All AD8604ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8604ARZ-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 AD8604ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8604ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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