ADA4806-1AKSZ - 105MHz Low Power Rail-to-Rail Op Amp | Analog Devices
MPN: ADA4806-1AKSZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.35 | $2.35 |
| 10 | $2.11 | $21.10 |
| 100 | $1.88 | $188.00 |
| 500 | $1.69 | $845.00 |
| 1,000 | $1.5 | $1,500.00 |
ADA4806-1AKSZ 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 ADA4806-1 belongs to the class of rail-to-rail output amplifiers, which can swing its output very close to the supply rails, maximizing dynamic range in low-voltage systems. This amplifier is part of the broader category of linear integrated circuits, specifically precision and high-speed amplifiers, which are essential in data acquisition, instrumentation, and communication systems.
Key features of the ADA4806-1 include ultralow supply current: 500 µA in full power mode, 74 µA in sleep mode, and 2.9 µA in shutdown mode. The turn-on time from shutdown mode is 1.5 µs, and from sleep mode is 0.45 µs, allowing rapid wake-up for power cycling. The rail-to-rail output stage ensures maximum output swing, and the high slew rate supports fast signal transitions. The low offset voltage and drift make it suitable for precision applications.
Technically, the ADA4806-1 uses a voltage feedback architecture with a multimode power management scheme. The three power modes allow designers to trade off speed and power consumption dynamically. In full power mode, the amplifier achieves its full 105 MHz bandwidth and 160 V/µs slew rate, while in sleep mode, it reduces supply current to 74 µA with reduced bandwidth, and in shutdown mode, it consumes only 2.9 µA with the output disabled. This flexibility is ideal for portable devices that require high performance when active and minimal power when idle.
Typical applications include portable instrumentation, battery-powered devices, active filters, and analog-to-digital converter (ADC) drivers. The low power consumption and fast wake-up times make it suitable for duty-cycled systems, while the rail-to-rail output and wide bandwidth support high-speed signal processing. The small SOT-23 package is ideal for space-constrained designs.
When designing with the ADA4806-1, consider the trade-off between power mode and performance. In sleep mode, the bandwidth is reduced, so ensure the application can tolerate the lower speed. Also, proper decoupling of the supply pins is essential to maintain stability and achieve the specified AC performance.
Drop-in alternatives for ADA4806-1AKSZ — 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 ADA4806-1AKSZ (same form factor and footprint) — differing in Amplifier Type, Package / Case, Slew Rate, Voltage - Supply Span (Max).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4805-1AKSZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →ADA4805-1AKSZ-RL7
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.6 / Unit
View Datasheet →AD8605AKSZ
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ADA4806-1AKSZ Maximum Ratings & Electrical Characteristics
| Amplifier Type | Voltage Feedback |
| Number of Circuits | 1 |
| Output Type | Rail-to-Rail |
| Slew Rate | 160 V/µs |
| Gain Bandwidth Product | 105 MHz |
| Input Offset Voltage | 125 µV (max) |
| Input Offset Voltage Drift | 0.2 µV/°C |
| Supply Current (Full Power Mode) | 500 µA |
| Supply Current (Sleep Mode) | 74 µA |
| Supply Current (Shutdown Mode) | 2.9 µA |
| Turn-on Time from Shutdown | 1.5 µs |
| Turn-on Time from Sleep | 0.45 µs |
| Supply Voltage Range | 3 V to ±5 V |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-Lead SOT-23 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADA4806-1AKSZ Pin Configuration
| Pin 1 | OUT — Amplifier output |
| Pin 2 | V- — Negative supply or ground |
| Pin 3 | IN+ — Non-inverting input |
| Pin 4 | IN- — Inverting input |
| Pin 5 | V+ — Positive supply |
| Pin 6 | MODE — Power mode control |
| Pin 7 | NC — No connect |
| Pin 8 | NC — No connect |
Typical Applications
ADA4806-1AKSZ is suitable for 6 applications: Portable Instrumentation, Battery-Powered Devices, Active Filters, ADC Drivers, Video Amplification, Signal Conditioning.
Portable Instrumentation
The ADA4806-1's low supply current (500 µA full power, 74 µA sleep, 2.9 µA shutdown) and fast wake-up times (1.5 µs from shutdown) make it ideal for battery-powered instruments that require high performance when active and minimal power when idle. Its rail-to-rail output maximizes dynamic range in low-voltage systems, and the 105 MHz bandwidth supports high-speed signal conditioning. The small SOT-23 package saves board space in handheld devices.
Recommended
Battery-Powered Devices
With three power modes, the ADA4806-1 enables dynamic power scaling in battery-powered devices such as wireless sensors and wearables. In full power mode, it delivers 105 MHz bandwidth and 160 V/µs slew rate for active signal processing. In sleep mode, it reduces supply current to 74 µA, and in shutdown mode to 2.9 µA, extending battery life. The turn-on times of 1.5 µs from shutdown and 0.45 µs from sleep allow rapid wake-up for duty-cycled operation.
Recommended
Active Filters
The ADA4806-1's 105 MHz gain bandwidth product and 160 V/µs slew rate make it suitable for active filter designs in communication and video systems. Its rail-to-rail output allows maximum signal swing, and the low offset voltage (125 µV max) ensures accurate DC performance. The low supply current is beneficial in multi-channel filter banks where power dissipation is a concern. The SOT-23 package is compact for dense PCB layouts.
Recommended
ADC Drivers
The ADA4806-1 can drive high-speed ADCs with its 105 MHz bandwidth and 160 V/µs slew rate. Its low output impedance and rail-to-rail output ensure full-scale input swing to the ADC. The low offset voltage and drift maintain signal accuracy. The three power modes allow the amplifier to be powered down when the ADC is not sampling, saving power in duty-cycled systems. The SOT-23 package is ideal for compact ADC front-ends.
Recommended
Video Amplification
With a 105 MHz bandwidth and 160 V/µs slew rate, the ADA4806-1 is suitable for video signal amplification in applications such as CCTV and video distribution. Its rail-to-rail output provides maximum video signal swing, and the low differential gain and phase errors ensure accurate color reproduction. The low supply current is beneficial in multi-channel video systems. The SOT-23 package is compact for space-constrained designs.
Recommended
Signal Conditioning
The ADA4806-1 is ideal for signal conditioning in industrial and medical applications. Its low offset voltage (125 µV max) and drift (0.2 µV/°C) ensure accurate amplification of small sensor signals. The 105 MHz bandwidth supports high-frequency signals, and the rail-to-rail output maximizes dynamic range. The three power modes allow power saving when the signal is not being processed. The SOT-23 package is suitable for compact designs.
Recommended
Recommended Products Summary
Engineering reference data for ADA4806-1AKSZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4805-1AKSZ | AD8605AKSZ | OPA333AIDBVT |
|---|---|---|---|---|
| Package | SOT-23-8 | SOT-23-8 | SOT-23-5 | SOT-23-5 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
Key Differentiators
- Three power modes for dynamic power scaling (vs AD8605AKSZ)
- Higher bandwidth and slew rate (vs AD8605AKSZ)
- Rail-to-rail output (vs OPA333AIDBVT)
Design Notes
The ADA4806-1 offers three power modes: full power (500 µA), sleep (74 µA), and shutdown (2.9 µA). Use the MODE pin to switch between modes. In sleep mode, the amplifier is disabled but can wake up in 0.45 µs; in shutdown, wake-up takes 1.5 µs. Ensure the MODE pin is properly driven to avoid unintended mode changes.
Place decoupling capacitors (0.1 µF and 10 µF) close to the V+ and V- pins to ensure stability and reduce noise. For optimal AC performance, keep the feedback network components close to the amplifier and minimize parasitic capacitance on the inverting input. Use a ground plane to reduce noise pickup.
Do not exceed the absolute maximum supply voltage of ±6 V. The MODE pin must be connected to a valid logic level; floating it may cause unpredictable behavior. In shutdown mode, the output is high-impedance, so ensure downstream circuits can handle this state.
Compliance Information
RoHS compliant per Analog Devices product page. Other compliance data not specified in the provided data.
