LT6222 - Quad 60MHz Rail-to-Rail Op Amp | Analog Devices
MPN: LT6222 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.15 | $31.50 |
| 100 | $2.8 | $280.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.1 | $2,100.00 |
Drop-in alternatives for LT6222 — 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:
LT6222CGN
✅ Drop-In📋 Reference alternative (not in catalog)
LT6222IGN
✅ Drop-In📋 Reference alternative (not in catalog)
AD8646ARUZ
✅ Drop-In📋 Reference alternative (not in catalog)
OPA4340UA
✅ Drop-In📋 Reference alternative (not in catalog)
MCP6L04T-E/ST
✅ Drop-In📋 Reference alternative (not in catalog)
LT6222 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Gain Bandwidth Product | 60 MHz |
| Slew Rate | 20 V/μs |
| Supply Voltage Range | 2.2 V to 12.6 V |
| Quiescent Current per Amplifier | 1 mA (max) |
| Input Offset Voltage | [DATA_NEEDED: Input Offset Voltage] |
| Input Bias Current | [DATA_NEEDED: Input Bias Current] |
| Input Common Mode Range | Includes both rails |
| Output Swing | Rail-to-Rail |
| Voltage Noise Density | 4.2 nV/√Hz |
| Power-Down Feature | Yes |
| Operating Temperature Range | -40°C to 85°C |
| Package | 16-SSOP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
LT6222 Pin Configuration
| Pin 1 | OUT A — Output of amplifier A |
| Pin 2 | -IN A — Inverting input of amplifier A |
| Pin 3 | +IN A — Non-inverting input of amplifier A |
| Pin 4 | V+ — Positive supply |
| Pin 5 | +IN B — Non-inverting input of amplifier B |
| Pin 6 | -IN B — Inverting input of amplifier B |
| Pin 7 | OUT B — Output of amplifier B |
| Pin 8 | OUT C — Output of amplifier C |
| Pin 9 | -IN C — Inverting input of amplifier C |
| Pin 10 | +IN C — Non-inverting input of amplifier C |
| Pin 11 | V- — Negative supply |
| Pin 12 | +IN D — Non-inverting input of amplifier D |
| Pin 13 | -IN D — Inverting input of amplifier D |
| Pin 14 | OUT D — Output of amplifier D |
| Pin 15 | SHDN — Shutdown (active low) |
| Pin 16 | NC — No connect |
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
LT6222 is suitable for 6 applications: Active Filters, Data Acquisition Systems, Battery-Powered Instrumentation, Portable Medical Devices, Audio Signal Processing, Communication Systems.
Active Filters
The LT6222's 60MHz gain bandwidth product and 20V/μs slew rate make it ideal for active filters in communication and audio systems. Its rail-to-rail output allows maximum signal swing, while low noise (4.2nV/√Hz) preserves signal integrity. In a multiple-feedback low-pass filter, the LT6222 can achieve high cutoff frequencies with minimal distortion. The low quiescent current (1mA per amp) is beneficial in battery-powered portable filters. Designers can implement 4th-order filters using all four amplifiers in the quad package, saving board space and cost.
Recommended
Data Acquisition Systems
In data acquisition systems, the LT6222 provides signal conditioning with high speed and low noise. Its rail-to-rail input and output allow direct interfacing to ADCs with full-scale input ranges. The 60MHz bandwidth supports fast sampling rates, while the low offset voltage ensures accurate DC measurements. The power-down feature is useful for multiplexed channels, reducing power when idle. The quad configuration allows simultaneous conditioning of multiple channels, ideal for multi-channel data loggers. The wide supply range (2.2V to 12.6V) accommodates various system rails.
Recommended
Battery-Powered Instrumentation
The LT6222 is well-suited for battery-powered instrumentation due to its low quiescent current (1mA max per amp) and wide supply range (2.2V to 12.6V). The rail-to-rail output maximizes dynamic range with low supply voltages, and the power-down feature extends battery life in portable devices. Its low noise (4.2nV/√Hz) ensures accurate measurements in medical and environmental sensors. The quad package integrates multiple amplifiers, reducing component count and PCB area. The device operates over -40°C to 85°C, suitable for field instruments.
Recommended
Portable Medical Devices
In portable medical devices, the LT6222 provides low-noise amplification for biosignals such as ECG and EEG. Its 4.2nV/√Hz noise density is critical for detecting weak physiological signals. The low power consumption (1mA per amp) extends battery life, and the rail-to-rail output allows direct connection to ADCs. The quad configuration enables multi-channel monitoring in a compact 16-SSOP package. The device's wide supply range supports 3.3V or 5V systems. The power-down feature is useful for intermittent monitoring to save power.
Recommended
Audio Signal Processing
The LT6222 is suitable for audio signal processing due to its low noise (4.2nV/√Hz) and high slew rate (20V/μs). It can be used in active crossovers, equalizers, and headphone amplifiers. The rail-to-rail output provides maximum headroom in low-voltage audio systems. The 60MHz bandwidth ensures minimal phase shift in the audio band. The low quiescent current is beneficial for portable audio players. The quad package allows implementation of stereo channels with additional filtering stages.
Recommended
Communication Systems
In communication systems, the LT6222 is used in IF amplification, active filters, and signal conditioning. Its 60MHz bandwidth supports high-frequency signals, and the low noise improves receiver sensitivity. The rail-to-rail input/output allows interfacing with ADCs and DACs. The power-down feature is useful for power management in transceivers. The quad configuration enables multiple signal paths in a single IC, reducing board space. The wide supply range accommodates various system voltages.
Recommended
Recommended Products Summary
Engineering reference data for LT6222 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LT6222CGN | LT6222IGN | AD8646ARUZ | OPA4340UA | MCP6L04T-E/ST |
|---|---|---|---|---|---|---|
| Package | 16-SSOP | 16-SSOP | 16-SSOP | 16-SSOP | 16-SSOP | 16-SSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Microchip Technology |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Gain Bandwidth Product | 60 MHz | 60 MHz | 60 MHz | 24 MHz | 5.5 MHz | 1 MHz |
| Slew Rate | 20 V/μs | 20 V/μs | 20 V/μs | 11 V/μs | 6 V/μs | 0.8 V/μs |
| Supply Voltage Range | 2.2V to 12.6V | 2.2V to 12.6V | 2.2V to 12.6V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 6.0V |
| Quiescent Current per Amp | 1 mA (max) | 1 mA (max) | 1 mA (max) | 1.5 mA (typ) | 750 μA (typ) | 1 mA (typ) |
| Voltage Noise Density | 4.2 nV/√Hz | 4.2 nV/√Hz | 4.2 nV/√Hz | 12 nV/√Hz | 25 nV/√Hz | 26 nV/√Hz |
Key Differentiators
- Higher bandwidth than AD8646 (vs AD8646ARUZ)
- Lower noise than OPA4340 (vs OPA4340UA)
- Wider supply range than MCP6L04 (vs MCP6L04T-E/ST)
Design Notes
The LT6222 operates from 2.2V to 12.6V. Use a 0.1μF ceramic capacitor close to each supply pin (V+ and V-) to decouple high-frequency noise. For optimal performance, place a 10μF tantalum capacitor in parallel for lower frequency decoupling. Ensure the supply voltage does not exceed the absolute maximum rating of 13.2V to prevent damage.
For high-speed operation, use a ground plane and minimize trace lengths on the input and output pins. Keep feedback resistors close to the inverting input to reduce parasitic capacitance. Avoid routing high-speed digital signals near the analog inputs to prevent coupling. Use surface-mount components to reduce lead inductance.
The rail-to-rail input stage can cause phase reversal if the input common-mode voltage exceeds the supply rails. Ensure the input signals stay within the specified common-mode range. The power-down pin (SHDN) is active low; leave it unconnected or tie high for normal operation. Do not drive the output beyond the rails, as this may cause latch-up.
Compliance Information
RoHS compliant per Analog Devices product page. AEC-Q100 not applicable for this general-purpose op amp.
