ADA4806-2ARMZ-RL7 - 105MHz Dual Op Amp | Analog Devices
MPN: ADA4806-2ARMZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.85 | $1,850.00 |
ADA4806-2ARMZ-RL7 Overview
An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog electronics, used in signal conditioning, filtering, and amplification. The ADA4806-2 belongs to the class of high-speed, rail-to-rail output amplifiers, which are essential in applications requiring large output swing and fast settling times. As a voltage feedback amplifier, it offers stable operation with resistive feedback networks and is widely used in ADC drivers, video amplification, and portable instrumentation.
Key features of the ADA4806-2 include its multimode operation, which allows the user to switch between full power, sleep, and shutdown modes via a logic pin. This feature is particularly valuable in battery-powered devices where power consumption is critical. The amplifier also provides rail-to-rail output swing, maximizing dynamic range in low-supply-voltage systems. With a low input offset voltage and drift, it ensures accurate DC performance over temperature.
Technically, the ADA4806-2 is fabricated using a complementary bipolar process, achieving high speed and low power simultaneously. The device includes internal compensation for unity-gain stability and can drive capacitive loads up to 100 pF without oscillation. Its input common-mode range extends to the negative rail, and the output swings within 50 mV of either rail, providing excellent headroom.
Typical applications include portable battery-powered instrumentation, active filters, ADC drivers, and video signal conditioning. The dual configuration in an 8-lead MSOP package saves board space and is ideal for compact designs. The device is specified over the extended industrial temperature range of -40°C to +125°C.
When designing with the ADA4806-2, ensure proper power supply decoupling with 0.1 μF ceramic capacitors placed close to the supply pins. The shutdown and sleep modes can be controlled via the EN pin, allowing dynamic power management. For optimal performance, keep the feedback network resistances low to minimize noise and maintain stability.
Drop-in alternatives for ADA4806-2ARMZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADA4806-2ARMZ-RL7 (same form factor and footprint) — differing in Slew Rate, Supply Voltage Range, Amplifier Type, Package, Input Offset Voltage (max).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4806-2ARMZ
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →ADA4896-2ARMZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4896-2ARMZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.25 / Unit
View Datasheet →ADA4807-2ARMZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.82 / Unit
View Datasheet →AD8628ARMZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADA4806-2ARMZ-RL7 Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Bandwidth (-3dB) | 105 MHz |
| Slew Rate | 160 V/μs |
| Input Offset Voltage (max) | 125 μV |
| Input Offset Voltage Drift | 0.2 μV/°C |
| Supply Voltage Range | 2.7 V to 5 V (single), ±1.35 V to ±2.5 V (dual) |
| Output Type | Rail-to-Rail |
| Power Modes | Full power, sleep, shutdown |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-MSOP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Amplifier Type | Voltage Feedback |
| Input Common-Mode Range | Includes negative rail |
| Output Swing | Within 50 mV of rails |
ADA4806-2ARMZ-RL7 Pin Configuration
| Pin 1 | OUT1 — Output of amplifier 1 |
| Pin 2 | -IN1 — Inverting input of amplifier 1 |
| Pin 3 | +IN1 — Non-inverting input of amplifier 1 |
| Pin 4 | V- — Negative supply or ground |
| Pin 5 | +IN2 — Non-inverting input of amplifier 2 |
| Pin 6 | -IN2 — Inverting input of amplifier 2 |
| Pin 7 | OUT2 — Output of amplifier 2 |
| Pin 8 | V+ — Positive supply |
Typical Applications
ADA4806-2ARMZ-RL7 is suitable for 6 applications: Portable Battery-Powered Instrumentation, Active Filters, ADC Drivers, Video Signal Conditioning, Battery-Powered Audio Processing, Industrial Process Control.
Portable Battery-Powered Instrumentation
The ADA4806-2ARMZ-RL7 is ideal for portable instrumentation due to its low power consumption and multimode operation. In battery-powered devices, the sleep and shutdown modes can reduce current draw to microamperes, extending battery life. The 105 MHz bandwidth and 160 V/μs slew rate ensure accurate signal conditioning for sensors and transducers. The rail-to-rail output maximizes dynamic range in low-voltage systems, and the low offset voltage (125 μV max) maintains measurement accuracy. The dual channel configuration in an 8-MSOP package saves board space, making it suitable for compact handheld devices.
Recommended
Active Filters
The ADA4806-2ARMZ-RL7 is well-suited for active filter designs, such as low-pass and high-pass filters, due to its high bandwidth and fast slew rate. The 105 MHz unity-gain bandwidth allows for filter cutoff frequencies up to several megahertz, while the 160 V/μs slew rate ensures minimal distortion for large signal swings. The rail-to-rail output enables full-scale output swing in single-supply designs. The low input offset voltage and drift contribute to accurate DC performance, which is critical for precision filters. The dual amplifier configuration allows implementation of second-order filters with a single IC, reducing component count and board area.
Recommended
ADC Drivers
The ADA4806-2ARMZ-RL7 can drive high-speed ADCs, providing the necessary bandwidth and settling time. With 105 MHz bandwidth and 160 V/μs slew rate, it can handle fast input signals and ensure accurate conversion. The rail-to-rail output allows the ADC input to swing close to the supply rails, maximizing the dynamic range. The low output impedance and ability to drive capacitive loads up to 100 pF make it suitable for direct ADC interfacing. The multimode operation allows power saving when the ADC is idle, which is beneficial in battery-powered data acquisition systems.
Recommended
Video Signal Conditioning
The ADA4806-2ARMZ-RL7 is suitable for video signal conditioning due to its high bandwidth and fast slew rate. The 105 MHz bandwidth supports standard-definition and some high-definition video signals, while the 160 V/μs slew rate preserves signal integrity. The rail-to-rail output allows the video signal to swing close to the supply rails, maximizing contrast. The low differential gain and phase errors ensure accurate color reproduction. The dual channel configuration can be used for differential video signals or for separate luminance and chrominance paths. The small 8-MSOP package is ideal for compact video processing boards.
Recommended
Battery-Powered Audio Processing
The ADA4806-2ARMZ-RL7 can be used in battery-powered audio devices, such as portable recorders and headphones, due to its low power consumption and multimode operation. The 105 MHz bandwidth is more than sufficient for audio frequencies, and the low distortion ensures high-fidelity sound. The rail-to-rail output allows maximum output swing for headphone drivers. The sleep and shutdown modes can significantly extend battery life during idle periods. The low input offset voltage and drift maintain DC accuracy in audio signal paths, preventing pops and clicks. The dual channel configuration is ideal for stereo audio processing.
Recommended
Industrial Process Control
The ADA4806-2ARMZ-RL7 is suitable for industrial process control applications, such as sensor signal conditioning and actuator drivers. The wide supply voltage range (2.7 V to 5 V) allows operation from standard industrial power rails. The high bandwidth and slew rate enable fast response to control signals. The low offset voltage and drift ensure accurate measurement of process variables. The rail-to-rail output provides full-scale control signals. The extended temperature range (-40°C to +125°C) ensures reliable operation in harsh industrial environments. The dual channel configuration can be used for multiple control loops, reducing component count.
Recommended
Recommended Products Summary
Engineering reference data for ADA4806-2ARMZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4806-2ARMZ | ADA4896-2ARMZ-R7 | ADA4896-2ARMZ | ADA4807-2ARMZ | AD8628ARMZ |
|---|---|---|---|---|---|---|
| Package | 8-MSOP | 8-MSOP | 8-MSOP | 8-MSOP | 8-MSOP | 8-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Bandwidth | 105 MHz | 105 MHz | 230 MHz | 230 MHz | 105 MHz | 2.5 MHz |
| Slew Rate | 160 V/μs | 160 V/μs | 120 V/μs | 120 V/μs | 220 V/μs | 0.5 V/μs |
| Input Offset Voltage (max) | 125 μV | 125 μV | 150 μV | 150 μV | 100 μV | 5 μV |
| Supply Voltage Range | 2.7 V to 5 V | 2.7 V to 5 V | 2.7 V to 5 V | 2.7 V to 5 V | 2.7 V to 5 V | 2.7 V to 5 V |
| Power Modes | Full, sleep, shutdown | Full, sleep, shutdown | None | None | None | None |
Key Differentiators
- Multimode power saving (vs ADA4896-2ARMZ-R7)
- Lower offset voltage drift (vs ADA4896-2ARMZ-R7)
- Rail-to-rail output with power modes (vs AD8628ARMZ)
Design Notes
The ADA4806-2ARMZ-RL7 operates from a single 2.7 V to 5 V supply or dual ±1.35 V to ±2.5 V supplies. Ensure the supply voltage is within the specified range to avoid damage. Use 0.1 μF ceramic capacitors close to the V+ and V- pins for decoupling. In battery-powered applications, utilize the sleep and shutdown modes to reduce power consumption when the amplifier is idle.
For optimal performance, place the ADA4806-2ARMZ-RL7 on a PCB with a solid ground plane. Keep the feedback network components close to the amplifier to minimize parasitic capacitance and inductance. Use short, direct traces for the input and output connections. The 8-MSOP package has a thermal pad; connect it to the ground plane for improved heat dissipation.
Avoid exceeding the absolute maximum supply voltage of 6 V. The shutdown and sleep modes are controlled via the EN pin; ensure proper logic levels to prevent unintended mode changes. When driving capacitive loads, verify stability with the specified 100 pF maximum. For high-frequency applications, use low-value feedback resistors to minimize noise and maintain stability.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
