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Analog Devices Inc. AD8527ARZ-REEL7
- Part No.:
- AD8527ARZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8527ARZ-REEL7.pdf
- Description:
- IC OPAMP GP R-R 7MHZ DUAL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
AD8527ARZ-REEL7 from Analog Devices is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It operates from 1.8 V to 6 V, delivers 7 MHz gain bandwidth, 8 V/µs slew rate, and 3.5 mV max input offset voltage across –40°C to +125°C, enabling precision signal conditioning in battery-powered sensor interfaces and portable communications.
For engineers reviewing the AD8527ARZ-REEL7 datasheet, AD8527ARZ-REEL7 pinout, AD8527ARZ-REEL7 application, or AD8527ARZ-REEL7 equivalent, key selection criteria include supply current per amplifier (900 µA typ at 5 V), output swing within 35 mV of rails at 250 µA load, and SOIC-8 packaging compatibility with industrial temperature range support.
Technical Context
The AD8527ARZ-REEL7 uses Analog Devices' XFCB complementary bipolar process to achieve rail-to-rail operation down to 1.8 V supply. Its input stage integrates parallel NPN and PNP differential pairs, enabling full common-mode input range (0 V to VS) and eliminating phase reversal beyond supply rails.
The double-folded cascode gain stage and rail-to-rail common-emitter output stage deliver 7 MHz GBP and 8 V/µs slew rate while maintaining 50° phase margin. Output drive capability is specified for loads up to 5 mA, with VOH ≥ 4.7 V and VOL ≤ 200 mV at 5 V supply and 5 mA sink/source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 6 V - supports end-of-discharge operation for Li-ion, NiMH, and alkaline batteries. |
| Gain Bandwidth Product | 7 MHz - enables stable unity-gain buffer and active filter designs up to ~1 MHz closed-loop bandwidth. |
| Slew Rate | 8 V/µs - ensures <400 ns settling time for 4 V step (0.1%), suitable for driving ASIC inputs like voice codecs. |
| Input Offset Voltage | 3.5 mV max (–40°C to +125°C) - limits DC error in precision sensor amplification and reference buffering. |
| Supply Current per Amplifier | 900 µA typ at 5 V - enables dual-channel analog front-end operation on sub-2 mA total supply budget. |
| Output Voltage Swing | Within 35 mV of rails at 250 µA load - maximizes dynamic range in single-supply systems with 1.8–6 V rails. |
| Input Common-Mode Range | 0 V to VS - allows direct interfacing with ground-referenced sensors and resistive dividers without level-shifting. |
Pinout & Package
AD8527ARZ-REEL7 is housed in an 8-lead narrow-body SOIC (SO-8) package, RoHS-compliant, with standard JEDEC MS-012AC footprint and 1.27 mm lead pitch. Thermal resistance θJA is 158°C/W on 2-layer board.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or feedback network; rail-to-rail swing supports full supply utilization. |
| 2 | –IN A | Inverting input of Amplifier A - accepts feedback signal or inverted input source; high CMRR (70 dB typ) rejects supply noise. |
| 3 | +IN A | Non-inverting input of Amplifier A - connects to sensor, reference, or signal source; rail-to-rail input enables ground-sensing. |
| 4 | V– | Negative supply terminal - tied to GND in single-supply configurations; internal ESD protection diodes limit fault current to ≤5 mA. |
| 5 | V+ | Positive supply terminal - accepts 1.8–6 V; PSRR of 90 dB (typ) minimizes supply ripple coupling into output. |
| 6 | +IN B | Non-inverting input of Amplifier B - independent channel for dual-path signal processing or matched-pair filtering. |
| 7 | –IN B | Inverting input of Amplifier B - supports differential configuration with Amplifier A or independent feedback loop. |
| 8 | OUT B | Amplifier B output - electrically isolated from OUT A; enables dual-channel buffering, active filtering, or I/V conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input common-mode range from 0 V to VS and output swing within 35 mV of both rails at light load - eliminates need for level-shifting circuitry in 1.8–6 V systems. |
| Low quiescent current | 900 µA per amplifier at 5 V - enables dual-opamp functionality in wearable devices and IoT nodes with multi-year battery life. |
| No phase reversal | Input overvoltage beyond supply rails (±0.6 V differential) does not cause output polarity inversion - improves reliability in transient-prone sensor interfaces. |
| High open-loop gain | 100 V/mV (100 dB) at 10 kΩ load - ensures <0.1% gain error in precision instrumentation amplifiers and reference buffers. |
| Capacitive load drive | Stable with up to 400 pF at unity gain - reduces need for external compensation in ADC driver and filter applications. |
Applications
| Portable Sensor Interface | ASIC Input Driver |
|---|---|
|
Use Scenario: Amplifying low-level signals from MEMS accelerometers or thermistor bridges powered by 3.3 V LDO. IC Role / Device Role / Timing Role: Dual-channel signal conditioner - one amplifier for sensor excitation/reference buffering, second for signal amplification and filtering. Use Value: Rail-to-rail input captures full sensor output range; 3.5 mV offset ensures <1% error in 100 mV full-scale bridge outputs. |
Use Scenario: Driving analog inputs of voice codec ICs (e.g., AD1939) in Bluetooth headsets with 1.8 V supply. IC Role / Device Role / Timing Role: High-speed line driver - provides 8 V/µs slew rate and 7 MHz bandwidth to meet codec setup/hold timing. Use Value: 400 ns settling time meets 16-bit audio sampling requirements; low 900 µA current extends talk-time battery life. |
| Microphone Preamplifier | Battery Voltage Monitor |
|
Use Scenario: Electret microphone biasing and gain staging in smartwatches with 1.8 V rail. IC Role / Device Role / Timing Role: Single-supply preamplifier - configured as non-inverting amplifier with Rf/Rin = 10, biased at VS/2 via divider. Use Value: 15 nV/√Hz input voltage noise preserves SNR in 20 Hz–20 kHz audio band; rail-to-rail output avoids clipping on 1.8 V rail. |
Use Scenario: Monitoring lithium battery voltage during discharge cycle in medical wearables. IC Role / Device Role / Timing Role: Precision voltage follower - buffers resistive divider output to ADC input without loading error. Use Value: 70 dB CMRR rejects switching regulator noise; 2 µV/°C offset drift ensures <5 mV error over –40°C to +85°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Lower GBP (1 MHz), higher offset (7 mV max), 1.8–5.5 V supply - lacks 6 V rating and 7 MHz bandwidth. | Acceptable for low-bandwidth sensor buffers but unsuitable for voice codec drivers or fast-settling filters. | Select LMV358IDR only when cost is primary constraint and 7 MHz bandwidth is unnecessary. |
| MCP6022-E/SN | Higher supply current (1 mA typ), same GBP (10 MHz), wider temp range (–40°C to +125°C) - no ESD rating specified. | Valid for high-speed applications but less optimal for ultra-low-power wearables due to 100 µA higher quiescent current. | Choose MCP6022-E/SN when 10 MHz bandwidth is required and 100 µA additional current is acceptable. |
Compared with LMV358IDR and MCP6022-E/SN, AD8527ARZ-REEL7 uniquely balances 7 MHz bandwidth, 900 µA supply current, and 3.5 mV offset in an industrial-temperature SOIC package - making it optimal for space-constrained, battery-powered precision analog front-ends where performance-per-microamp matters.
Availability
AD8527ARZ-REEL7 is available at Aetrix Electronics and suitable for portable communications, sensor interface, and battery-powered device designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8527ARZ-REEL7 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, with design centers worldwide and ISO 9001-certified manufacturing.
The AD8517/AD8527 product line was engineered specifically for ultra-low-voltage, rail-to-rail precision amplification in portable and battery-constrained systems - emphasizing micropower operation, wide supply range, and robust input/output swing without sacrificing speed or accuracy.
FAQ
What is the maximum operating temperature range for AD8527ARZ-REEL7?
AD8527ARZ-REEL7 is fully specified over the extended industrial temperature range of –40°C to +125°C. All electrical parameters - including offset voltage (3.5 mV max), supply current (1.4 mA max per amplifier), and output swing - are guaranteed across this range, making AD8527ARZ-REEL7 suitable for under-hood automotive sensors and industrial control modules.
Does AD8527ARZ-REEL7 support true rail-to-rail input with 1.8 V supply?
Yes, AD8527ARZ-REEL7 supports rail-to-rail input operation down to 1.8 V supply, with common-mode input range from 0 V to VS. At 1.8 V, the input can accept signals from ground to 1.8 V without phase reversal or clipping - confirmed by Figure 20 in the datasheet showing full 1.8 Vp-p input/output swing at unity gain.
Can AD8527ARZ-REEL7 drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes, AD8527ARZ-REEL7 maintains rail-to-rail output swing into 10 kΩ loads: at 5 V supply, VOH ≥ 4.70 V and VOL ≤ 200 mV with 5 mA load, and VOH ≥ 4.965 V and VOL ≤ 35 mV with 250 µA load. These values ensure >94% of full-scale swing remains usable for precision ADC interfacing and reference buffering.
Is AD8527ARZ-REEL7 pin-compatible with other dual op amps in SOIC-8 packages?
No, AD8527ARZ-REEL7 has a non-standard SOIC-8 pinout: Pin 1 = OUT A, Pin 2 = –IN A, Pin 3 = +IN A, Pin 4 = V–, Pin 5 = V+, Pin 6 = +IN B, Pin 7 = –IN B, Pin 8 = OUT B. This differs from industry-standard dual op amps (e.g., LM358, TL072), requiring PCB layout revision for drop-in replacement.
What is the typical supply current per amplifier for AD8527ARZ-REEL7 at 2.5 V supply?
At 2.5 V supply, AD8527ARZ-REEL7 draws 750 µA typical supply current per amplifier (1.5 mA total for both channels), as specified in the "ELECTRICAL CHARACTERISTICS" table for VS = 2.2 V. This value scales linearly with supply voltage, enabling accurate power budgeting for 2.5 V LDO-fed systems.
AD8527ARZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 8V/µs
- Gain Bandwidth Product:
- 7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 450 nA
- Voltage - Input Offset:
- 1.3 mV
- Current - Supply:
- 900µA (x2 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8527ARZ-REEL7 FAQ
1.How can I place an order for AD8527ARZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8527ARZ-REEL7 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 AD8527ARZ-REEL7 reliable?
The price and inventory of AD8527ARZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8527ARZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD8527ARZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8527ARZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8527ARZ-REEL7?
AD8527ARZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8527ARZ-REEL7 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 AD8527ARZ-REEL7?
For technical support, including AD8527ARZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8527ARZ-REEL7 requirements.
6.How does Aetrix verify that AD8527ARZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD8527ARZ-REEL7 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 AD8527ARZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD8527ARZ-REEL7?
All AD8527ARZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8527ARZ-REEL7, 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 AD8527ARZ-REEL7 part is unused and in its original packaging.
Return procedure for AD8527ARZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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