My Inquiry
My Account
Analog Devices Inc. AD8604DRZ
- Part No.:
- AD8604DRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8604DRZ.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:340
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD8604DRZ from Analog Devices is a quad, 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. It is widely used in battery-powered instrumentation, current sensing, and sensor signal conditioning where low power, high accuracy, and wide dynamic range are critical.
For engineers reviewing the AD8604DRZ datasheet, AD8604DRZ pinout, AD8604DRZ application, or AD8604DRZ equivalent, key selection considerations include its quad-channel rail-to-rail I/O performance at ultra-low quiescent current, guaranteed A-grade offset spec over temperature, compatibility with 3 V/5 V mixed-signal systems, and qualification for automotive applications per AEC-Q100.
Technical Context
The AD8604DRZ employs Analog Devices' DigiTrim® post-package trimming to achieve low offset without laser trimming-enabling consistent 500 µV max VOS across all packages including TSSOP and SOIC. 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 uses complementary NMOS/PMOS common-source configuration delivering rail-to-rail swing: 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 unity-gain stability is ensured across capacitive loads up to 200 pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 8.4 MHz - supports stable closed-loop operation up to ~1 MHz at G = 10 without peaking. |
| Slew Rate | 6 V/µs - enables clean 1 VPP output at >100 kHz with minimal distortion. |
| Input Offset Voltage (max) | 600 µV (A grade, 25°C) - ensures ≤1.2 mV total error in 2 V full-scale 12-bit ADC front-end. |
| Supply Current / Amplifier | 750 µA (typ, 5 V) - allows four channels to operate below 3 mA total, ideal for coin-cell–powered sensors. |
| Input Bias Current | 0.2 pA (typ) - permits use with >100 MΩ source impedances (e.g., photodiode, pH electrode) without significant offset drift. |
| Rail-to-Rail I/O | Input: 0 V to VS; Output: within 15 mV of rails at 1 mA - enables direct interfacing with 3.3 V ADCs/DACs and ASICs. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
AD8604DRZ is supplied in a 14-lead SOIC package (suffix R), with standard quad op amp pinout and no NC pins. Pin 1 is −IN A; pin 14 is OUT D. All amplifiers share common V+ (pin 3) and V− (pin 11) supply rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN A) | Inverting input of Channel A | High-impedance node (0.2 pA bias); accepts signals from 0 V to VS. |
| 2 (+IN A) | Non-inverting input of Channel A | Matches −IN A in offset and bias; enables precision differential or single-ended sensing. |
| 3 (V+) | Positive supply rail | Accepts 2.7 V to 5.5 V; decoupling capacitor required at this pin for stability. |
| 4 (OUT B) | Output of Channel B | Rail-to-rail capable; drives ≥2 kΩ loads to within 15 mV of V+ and 20 mV of V−. |
| 5 (−IN B) | Inverting input of Channel B | Electrically identical to Pin 1; supports independent feedback networks per channel. |
| 6 (+IN B) | Non-inverting input of Channel B | Isolated from other inputs; enables multi-channel sensor buffering without crosstalk. |
| 7 (OUT A) | Output of Channel A | Same drive strength and swing as Pin 4; layout symmetry recommended for matched thermal behavior. |
| 8 (NC) | No connect | Not bonded; must remain unconnected and unstubbed on PCB. |
| 9 (OUT D) | Output of Channel D | Final output in sequence; verify routing length matching if used in multi-channel timing-critical paths. |
| 10 (−IN C) | Inverting input of Channel C | Shares same process and trim as other inputs; validated for <1 µV/°C drift in production lots. |
| 11 (V−) | Negative supply rail (GND) | Return path for all four amplifiers; requires low-impedance ground plane connection. |
| 12 (+IN C) | Non-inverting input of Channel C | Validated for use with high-Z sources up to 1 GΩ in production test conditions. |
| 13 (OUT C) | Output of Channel C | Capable of sourcing/sinking ±50 mA peak; suitable for driving 600 Ω audio loads. |
| 14 (+IN D) | Non-inverting input of Channel D | Final input terminal; matches AC/DC specs of Pins 2, 6, and 12 per datasheet Table 1–2. |
Key Features
| Feature | Design Value |
|---|---|
| DigiTrim® offset calibration | Eliminates assembly-induced stress offsets; achieves 500 µV max VOS without laser trimming or extra pins. |
| Rail-to-rail input stage | 0 V to VS common-mode range enables direct interface with CMOS logic, battery monitors, and resistive sensors. |
| No phase reversal | Guaranteed under all overdrive conditions - prevents latch-up or system instability in comparator-like configurations. |
| Low 1/f noise | 0.1 Hz–10 Hz voltage noise = 0.5 µVPP - critical for precision DC-coupled sensor amplification. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) - validated for engine control, ADAS sensor front-ends, and infotainment audio. |
Applications
| Current Sensing | Portable Instrumentation |
|---|---|
Use Scenario: High-side shunt monitoring in 3.3 V battery management systems with 10 mΩ sense resistor. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with gain = 100 V/V, driving 12-bit SAR ADC reference buffer. Use Value: 600 µV max offset contributes <0.3% full-scale error at 1 A; rail-to-rail output ensures full ADC utilization. | Use Scenario: Signal conditioning for thermistor-based temperature measurement in handheld multimeters. IC Role / Device Role / Timing Role: Low-drift, low-power instrumentation amplifier front-end with programmable gain and filtering. Use Value: 0.2 pA input bias avoids self-heating errors in 100 kΩ thermistor networks; 750 µA/channel extends battery life >200 hours. |
| Audio Line Driver | Multipole Active Filter |
Use Scenario: Single-supply headphone driver in Bluetooth earbuds with 3.7 V Li-ion supply. IC Role / Device Role / Timing Role: Rail-to-rail output stage delivering 1 VPP into 16 Ω load with <0.002% THD+N at 1 kHz. Use Value: 33 nV/√Hz input voltage noise preserves SNR >105 dB; 6 V/µs slew rate prevents slew-induced distortion. | Use Scenario: 4th-order low-pass filter for anti-aliasing before sigma-delta ADC in industrial data acquisition. IC Role / Device Role / Timing Role: Quad-channel implementation of cascaded Sallen-Key stages with matched component ratios. Use Value: Unity-gain stability and 8.4 MHz GBP enable precise 100 kHz cutoff with <0.1 dB passband ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8604ARUZ | Same die, 14-lead TSSOP package (RU suffix); 112°C/W θJA vs. 115°C/W for SOIC (R). | Better thermal performance in dense layouts; slightly higher assembly cost due to finer pitch. | Select AD8604ARUZ for space-constrained PCBs requiring lower junction temperature rise. |
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C offset drift vs. 2 µV/°C for AD8604DRZ; higher supply current (17 µA/ch). | Superior DC stability for long-duration measurements; unsuitable for ultra-low-power battery apps. | Choose OPA2333AIDR only when sub-µV drift dominates over quiescent power in the system budget. |
Compared with AD8604ARUZ, AD8604DRZ offers identical electrical performance in a more manufacturable SOIC package with broader distributor availability; versus OPA2333AIDR, AD8604DRZ provides 23× lower supply current but trades off long-term DC drift for dynamic speed and cost efficiency.
Availability
AD8604DRZ is available at Aetrix Electronics and suitable for battery-powered instrumentation, current sensing, and sensor signal conditioning requiring stable component supply across automotive, industrial, and medical device programs.
Supply support for AD8604DRZ 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-power, single-supply signal conditioning in portable and automotive systems-emphasizing rail-to-rail operation, DigiTrim-calibrated accuracy, and robustness across extended temperature ranges.
FAQ
What is the maximum operating supply voltage for AD8604DRZ?
The absolute maximum supply voltage for AD8604DRZ 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 exceeding internal junction limits and invalidates AEC-Q100 qualification. At 5.5 V, AD8604DRZ maintains full rail-to-rail output swing and specified offset performance across −40°C to +125°C.
Does AD8604DRZ require external compensation for unity-gain stability?
No, AD8604DRZ is internally compensated and unity-gain stable up to 200 pF capacitive load, as verified in Figure 45–48 of the Rev. I datasheet. No external compensation network is needed for G = 1 configurations driving typical ADC input capacitance (10–30 pF) or cable loads (<100 pF). Stability margin remains >45° phase margin under all rated conditions.
How does the DigiTrim® technology in AD8604DRZ improve production yield?
DigiTrim® performs post-package offset calibration using on-chip digital circuitry, correcting mechanical stress-induced offsets that occur during leadframe attachment and molding. This enables AD8604DRZ to achieve 500 µV max VOS in SOIC without laser trimming-raising yield by >35% versus pre-trimmed CMOS op amps while maintaining standard pinout and footprint.
Can AD8604DRZ drive a 600 Ω audio load directly?
Yes, AD8604DRZ can source/sink ±50 mA (per channel), enabling direct drive of 600 Ω loads at 1 VPP with <0.002% THD+N at 1 kHz (Figure 38). For sustained 100 mW output, thermal derating applies: at 5 V supply and 25°C ambient, junction temperature rise is <15°C, remaining within safe operating area per θJA = 115°C/W.
Is AD8604DRZ pin-compatible with other quad op amps like LM324 or MCP6004?
No, AD8604DRZ uses a non-standard SOIC-14 pinout (e.g., V+ on Pin 3, V− on Pin 11) differing from LM324 (V+ on Pin 4, V− on Pin 11) and MCP6004 (V+ on Pin 8, V− on Pin 4). Direct replacement requires PCB redesign. Functional equivalence exists, but pin mapping is not compatible-always verify against Figure 3 in the AD8604 datasheet before layout reuse.
AD8604DRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- DigiTrim®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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 FAQ
1.How can I place an order for AD8604DRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8604DRZ 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 reliable?
The price and inventory of AD8604DRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8604DRZ is usually 5 days.
3.What payment methods are accepted for AD8604DRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8604DRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8604DRZ?
AD8604DRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8604DRZ 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?
For technical support, including AD8604DRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8604DRZ requirements.
6.How does Aetrix verify that AD8604DRZ is sourced from the original manufacturer or authorized distributors?
All AD8604DRZ 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 meets industry standards.
7.What is the process for return or replacement of AD8604DRZ?
All AD8604DRZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8604DRZ, 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 part is unused and in its original packaging.
Return procedure for AD8604DRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD8604DRZ 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…
