ADA4806-2ARMZ - 105MHz Low Power Rail-to-Rail Op Amp | ADI
MPN: ADA4806-2ARMZ ✓ 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 |
Drop-in alternatives for ADA4806-2ARMZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4807-2ARMZ
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →ADA4896-2ARMZ
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4661-2ARMZ
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →ADA4528-2ARMZ
✅ Drop-In✓ In Stock
$2.8 / Unit
View Datasheet →OPA2376AIDR
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4806-2ARMZ 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 5.5 V |
| Supply Current per Amplifier | 1.1 mA |
| Shutdown Current | 1 µA (max) |
| Output Type | Rail-to-Rail |
| Input Type | Voltage Feedback |
| Operating Temperature Range | -40°C to +125°C |
| Package | MSOP-8 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Amplifier Type | General Purpose |
ADA4806-2ARMZ 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 |
| 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 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADA4806-2ARMZ is suitable for 6 applications: Portable Instrumentation, Active Filters, ADC Driver, Video Signal Conditioning, Battery-Powered Audio, Industrial Control.
Portable Instrumentation
The ADA4806-2ARMZ's low power consumption (1.1 mA per amplifier) and shutdown mode make it ideal for battery-powered portable instruments. Its 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 3.3V systems, and the MSOP-8 package saves board space. In a typical data acquisition front-end, the op amp buffers sensor signals before an ADC, providing high input impedance and low offset voltage (125 µV) for precision measurements.
Recommended
Active Filters
The ADA4806-2ARMZ is well-suited for active filter designs due to its 105 MHz unity-gain bandwidth and high slew rate. It can implement Butterworth, Chebyshev, or Bessel filters for anti-aliasing or signal conditioning. The low offset voltage (125 µV) and drift (0.2 µV/°C) ensure accurate DC performance in filter circuits. With a supply range of 2.7V to 5.5V, it supports low-voltage filter designs. The rail-to-rail output allows maximum signal swing, and the low power consumption is beneficial in multi-stage filters.
Recommended
ADC Driver
The ADA4806-2ARMZ can drive high-speed ADCs with its 105 MHz bandwidth and 160 V/µs slew rate. It provides the necessary drive capability and low output impedance to charge the ADC's sampling capacitor quickly. The rail-to-rail output ensures full-scale input range utilization. The low offset voltage (125 µV) minimizes DC errors in the signal chain. In a typical ADC driver circuit, the op amp is configured as a unity-gain buffer or with gain to match the ADC's input range, and a series resistor may be added for stability.
Recommended
Video Signal Conditioning
The ADA4806-2ARMZ's 105 MHz bandwidth and 160 V/µs slew rate make it suitable for video signal conditioning in applications like CCTV and video distribution. It can buffer and amplify composite video signals with minimal distortion. The rail-to-rail output allows full video swing, and the low power consumption is advantageous in multi-channel systems. The shutdown mode can be used to power down unused channels. The MSOP-8 package is compact for dense video processing boards.
Recommended
Battery-Powered Audio
The ADA4806-2ARMZ is suitable for battery-powered audio applications such as portable media players and hearing aids. Its low supply current (1.1 mA per amplifier) and shutdown mode extend battery life. The 105 MHz bandwidth is more than sufficient for audio frequencies, and the low offset voltage ensures minimal DC offset in the audio path. The rail-to-rail output maximizes headroom in low-voltage designs. The MSOP-8 package is ideal for compact audio devices.
Recommended
Industrial Control
The ADA4806-2ARMZ operates over the extended industrial temperature range of -40°C to +125°C, making it suitable for industrial control systems. It can be used in signal conditioning for sensors, process control loops, and motor control feedback. The low offset voltage and drift ensure accurate measurement over temperature. The 105 MHz bandwidth supports fast control loops, and the rail-to-rail output interfaces directly with ADCs and microcontrollers. The shutdown mode can be used for power management in remote industrial nodes.
Recommended
Recommended Products Summary
Engineering reference data for ADA4806-2ARMZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4807-2ARMZ | ADA4896-2ARMZ | ADA4661-2ARMZ | ADA4528-2ARMZ | OPA2376AIDR |
|---|---|---|---|---|---|---|
| Package | MSOP-8 | MSOP-8 | MSOP-8 | MSOP-8 | MSOP-8 | MSOP-8 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Bandwidth | 105 MHz | 105 MHz | 230 MHz | 18 MHz | 6 MHz | 5.5 MHz |
| Slew Rate | 160 V/µs | 160 V/µs | 120 V/µs | 2 V/µs | 0.5 V/µs | 2 V/µs |
| Input Offset Voltage (max) | 125 µV | 125 µV | 50 µV | 50 µV | 2.5 µV | 25 µV |
| Supply Current per Amplifier | 1.1 mA | 1.1 mA | 3 mA | 0.8 mA | 0.8 mA | 0.95 mA |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.2V to 5.5V |
| Shutdown Mode | Yes | Yes | No | No | No | No |
Key Differentiators
- Three power modes including shutdown (vs ADA4896-2ARMZ)
- Lower supply current (vs ADA4896-2ARMZ)
- Higher bandwidth than precision alternatives (vs ADA4528-2ARMZ)
Design Notes
The ADA4806-2ARMZ operates from 2.7V to 5.5V. Use 0.1 µF ceramic capacitors close to each supply pin (V+ and V-) to decouple high-frequency noise. For best performance, a 10 µF bulk capacitor may be added. The shutdown mode reduces supply current to less than 1 µA, which is useful for power-sensitive designs.
For optimal performance, place the ADA4806-2ARMZ on a solid ground plane and keep traces short. The MSOP-8 package has a thermal resistance of 150°C/W; ensure adequate copper area for heat dissipation if power dissipation is significant. Avoid running high-speed digital traces near the analog inputs to prevent noise coupling.
Do not exceed the absolute maximum supply voltage of 6V. The shutdown pin (if available) should be driven to a valid logic level; floating it may cause unpredictable operation. For capacitive loads greater than 100 pF, add a series resistor (e.g., 50Ω) to maintain stability. Ensure the input common-mode voltage stays within the specified range to avoid phase reversal.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
