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Analog Devices Inc. ADA4806-1ARJZ-R7
- Part No.:
- ADA4806-1ARJZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
ADA4806-1ARJZ-R7.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:8,818
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Product details
Overview
ADA4806-1ARJZ-R7 from Analog Devices is a single, rail-to-rail output, voltage-feedback operational amplifier with multimode power control (full power/sleep/shutdown), 105 MHz −3 dB bandwidth at 5 V supply, 160 V/µs slew rate, and 125 µV max input offset voltage. It serves as a precision ADC driver in battery-powered data acquisition systems requiring dynamic power scaling.
For engineers reviewing the ADA4806-1ARJZ-R7 datasheet, ADA4806-1ARJZ-R7 pinout, ADA4806-1ARJZ-R7 application, or ADA4806-1ARJZ-R7 equivalent, key selection criteria include its 74 µA sleep-mode current, 2.9 µA shutdown current, 1.5 µs turn-on time from shutdown, rail-to-rail output swing, and 8-lead SOT-23 package compatibility with space-constrained PCB layouts.
Technical Context
The ADA4806-1ARJZ-R7 implements a voltage-feedback architecture with three distinct power states controlled by dedicated SLEEP and SHUTDOWN pins. Its full-power mode delivers 105 MHz bandwidth and 160 V/µs slew rate while drawing only 500 µA quiescent current at 5 V supply.
Sleep mode reduces quiescent current to 74 µA with 450 ns turn-on time, enabling dynamic power scaling for ADC sampling rates up to 2 MSPS; shutdown mode further lowers current to 2.9 µA with 1.5 µs wake-up latency, supporting ultra-low-power system standby.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 105 MHz at G = +1, 5 V supply - supports high-speed signal conditioning before SAR ADCs like AD7980. |
| Slew Rate | 160 V/µs at G = +1, 5 V supply - ensures fast settling for 2 V step inputs within 35 ns to 0.1%. |
| Input Offset Voltage | 125 µV maximum - enables accurate dc-coupled gain stages without significant baseline error. |
| Quiescent Current | 500 µA (full), 74 µA (sleep), 2.9 µA (shutdown) - allows adaptive power management per sample cycle. |
| Supply Range | 2.7 V to 10 V - operates from single 3 V or 5 V rails, or dual ±2.5 V/±5 V supplies. |
| Output Swing | Rail-to-rail, 0.02 V to 4.98 V on 5 V supply - maximizes dynamic range into ADC reference buffers. |
| Turn-On Time | 1.5 µs from shutdown, 0.45 µs from sleep - meets timing constraints for burst-mode data capture. |
Pinout & Package
The ADA4806-1ARJZ-R7 is housed in an 8-lead SOT-23 package with exposed pad for thermal performance. Pin 2 is NC (no connection); all other pins are electrically active and functionally defined per Analog Devices' official pinout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Amplifier output | Delivers rail-to-rail voltage swing; drives ADC input or reference buffer with low distortion. |
| NC (Pin 2) | No connection | Must remain unconnected; no internal bond wire or circuit node. |
| −VS (Pin 3) | Negative supply | Accepts ground or negative rail; common-mode input range extends to −VS − 0.1 V (5 V supply). |
| +IN (Pin 4) | Noninverting input | High-impedance (50 MΩ common-mode) node for precision signal routing or feedback networks. |
| −IN (Pin 5) | Inverting input | Differential input resistance of 260 kΩ; used in transimpedance or inverting gain configurations. |
| SLEEP (Pin 6) | Low-power mode control | Logic-high (>1.9 V) enables full power; logic-low (<1.5 V) activates 74 µA sleep mode. |
| SHUTDOWN (Pin 7) | Power-down control | Logic-high (>1.9 V) enables operation; logic-low (<1.5 V) forces 2.9 µA shutdown state. |
| +VS (Pin 8) | Positive supply | Accepts 2.7–10 V; PSRR >100 dB ensures immunity to supply noise coupling into analog path. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic power scaling | Three discrete power modes enable real-time quiescent current adjustment synchronized to ADC sampling rate. |
| Rail-to-rail output | Swings within 20 mV of rails on 5 V supply, preserving full-scale resolution when driving 16-bit+ SAR ADCs. |
| Low 1/f noise corner | 8 Hz corner frequency with 5.9 nV/√Hz broadband noise - critical for precision dc-coupled sensor interfaces. |
| Fast mode transitions | Sub-microsecond wake-up (1.5 µs shutdown → active) eliminates timing bottlenecks in burst-sampling architectures. |
| Industrial temperature range | Specified from −40°C to +125°C - supports deployment in automotive front-end modules and industrial DAQ enclosures. |
Applications
| Portable Instrumentation | High-Density Data Acquisition |
|---|---|
Use Scenario: Handheld multimeter or portable oscilloscope front-end amplifying sensor signals before digitization. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage and ADC driver with rail-to-rail output swing. Use Value: 125 µV max offset and 0.2 µV/°C drift ensure stable measurement accuracy across operating temperature range. | Use Scenario: Multi-channel medical ECG or environmental monitoring system with >16-bit resolution per channel. IC Role / Device Role / Timing Role: Low-power, high-bandwidth driver for successive approximation register (SAR) ADCs such as AD7980. Use Value: Dynamic power scaling reduces total system power by switching between full/sleep modes at 2 MSPS sample rates. |
| Voltage Reference Buffer | Active RFID Reader Front-End |
Use Scenario: Isolating and buffering precision voltage references (e.g., ADR45xx) for ADC reference inputs. IC Role / Device Role / Timing Role: Unity-gain buffer with high CMRR (>103 dB) and low output impedance. Use Value: 107 dB open-loop gain and rail-to-rail output maintain reference integrity under varying load conditions. | Use Scenario: Signal conditioning stage in UHF RFID reader ICs amplifying weak tag return signals. IC Role / Device Role / Timing Role: High-speed, low-noise amplifier for baseband analog front-end prior to demodulation. Use Value: 105 MHz bandwidth and −102 dBc HD3 at 100 kHz support clean envelope detection of modulated carrier returns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4891-1ARJZ-R7 | Higher quiescent current (1.2 mA), no sleep/shutdown modes, 225 MHz bandwidth. | Optimized for fixed full-power operation; lacks dynamic power scaling capability. | Select when maximum speed is prioritized over battery life and system-level power management. |
| OPA320AIDBVR | Lower noise (4.5 nV/√Hz), 20 MHz bandwidth, 170 µA quiescent current, no multimode control. | Targeted at precision dc/low-frequency applications; insufficient bandwidth for >1 MSPS ADC drivers. | Select for ultra-low-noise, low-power instrumentation where bandwidth <25 MHz suffices. |
Compared with ADA4891-1ARJZ-R7 and OPA320AIDBVR, the ADA4806-1ARJZ-R7 uniquely balances 105 MHz bandwidth, sub-1 µA shutdown current, and microsecond wake-up latency-making it the only option among the three that enables adaptive power scaling for high-resolution, battery-operated data converters.
Availability
ADA4806-1ARJZ-R7 is available at Aetrix Electronics and suitable for portable instrumentation, high-density data acquisition, and precision reference buffering requiring stable component supply, long-term lifecycle support, and guaranteed authenticity.
Supply support for ADA4806-1ARJZ-R7 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 ADA4806-1ARJZ-R7 belongs to Analog Devices' precision, low-power op-amp product line, designed specifically for dynamic power-aware signal chains in battery-operated and thermally constrained data conversion systems.
FAQ
What power modes does the ADA4806-1ARJZ-R7 support, and how are they controlled?
The ADA4806-1ARJZ-R7 supports three power modes: full power (500 µA), sleep (74 µA), and shutdown (2.9 µA). These are controlled independently via dedicated SLEEP and SHUTDOWN pins. Logic-high on SLEEP enables full power; logic-low activates sleep mode. SHUTDOWN pin logic-low forces shutdown. Both pins accept standard CMOS voltage thresholds referenced to supply rails.
What is the maximum −3 dB bandwidth of the ADA4806-1ARJZ-R7, and under what conditions is it specified?
The ADA4806-1ARJZ-R7 achieves a maximum −3 dB bandwidth of 105 MHz under 5 V single-supply conditions, G = +1 configuration, small-signal output (2 V p-p), and RL = 2 kΩ to midsupply. Bandwidth decreases to 95 MHz at 3 V supply and increases to 120 MHz at ±5 V dual supply, per the official datasheet specifications.
Does the ADA4806-1ARJZ-R7 have rail-to-rail input capability, and what is its input common-mode voltage range?
No, the ADA4806-1ARJZ-R7 does not feature rail-to-rail input. Its input common-mode voltage range is −0.1 V to +4 V on a 5 V supply, −0.1 V to +2 V on a 3 V supply, and −5.1 V to +4 V on ±5 V supplies. This limitation requires careful biasing in single-supply applications but maintains excellent dc precision within its valid range.
How does the ADA4806-1ARJZ-R7 achieve dynamic power scaling in ADC driver applications?
The ADA4806-1ARJZ-R7 achieves dynamic power scaling by synchronizing its SLEEP and SHUTDOWN modes with ADC sampling intervals. Between conversions, it enters sleep mode (74 µA), reducing average power; during acquisition, it wakes to full power (500 µA) for high-fidelity signal drive. This method cuts total power consumption proportionally to idle time, validated up to 2 MSPS sampling rates.
What package type and thermal characteristics apply to the ADA4806-1ARJZ-R7?
The ADA4806-1ARJZ-R7 uses an 8-lead SOT-23 package with exposed pad, rated for −40°C to +125°C operation. Its junction-to-ambient thermal resistance (θJA) is 209.1°C/W on a JEDEC-standard 4-layer board. Maximum safe power dissipation drops from ~0.9 W at −50°C ambient to ~0.2 W at +110°C, per Figure 3 in the datasheet.
ADA4806-1ARJZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 160V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 105 MHz
- Current - Input Bias:
- 470 nA
- Voltage - Input Offset:
- 13 µV
- Current - Supply:
- 500µA
- Current - Output / Channel:
- 73 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
ADA4806-1ARJZ-R7 FAQ
1.How can I place an order for ADA4806-1ARJZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4806-1ARJZ-R7 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 ADA4806-1ARJZ-R7 reliable?
The price and inventory of ADA4806-1ARJZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4806-1ARJZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4806-1ARJZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4806-1ARJZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4806-1ARJZ-R7?
ADA4806-1ARJZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4806-1ARJZ-R7 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 ADA4806-1ARJZ-R7?
For technical support, including ADA4806-1ARJZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4806-1ARJZ-R7 requirements.
6.How does Aetrix verify that ADA4806-1ARJZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4806-1ARJZ-R7 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 ADA4806-1ARJZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4806-1ARJZ-R7?
All ADA4806-1ARJZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4806-1ARJZ-R7, 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 ADA4806-1ARJZ-R7 part is unused and in its original packaging.
Return procedure for ADA4806-1ARJZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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