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Analog Devices Inc. LT6222IGN#PBF
- Part No.:
- LT6222IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6222IGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:544
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Product details
Overview
LT6222IGN#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail input/output precision operational amplifier optimized for low-power, high-speed signal conditioning in space-constrained industrial and instrumentation systems. It delivers 60MHz gain-bandwidth, 20V/µs slew rate, <350µV max input offset voltage, 1.1mA per amplifier supply current, and full rail-to-rail swing within 10mV of either supply rail at ±5V or single 5V operation.
For engineers reviewing the LT6222IGN#PBF datasheet, LT6222IGN#PBF pinout, LT6222IGN#PBF application, or LT6222IGN#PBF equivalent, key selection criteria include guaranteed –40°C to 85°C operation, 16-lead SSOP package compatibility with high-density PCB layouts, quad-channel matching performance, and verified rail-to-rail behavior across 2.2V–12.6V supply range.
Technical Context
The LT6222IGN#PBF employs dual-input-stage architecture-comprising PNP and NPN differential pairs-with automatic input stage switching to maintain rail-to-rail common-mode range (0V to VS) and consistent DC precision across the full input voltage span. Its output stage uses complementary Class AB topology to sustain 50mA typical output current while preserving linearity and settling time.
Designed for unity-gain stable operation, the device features internal compensation enabling robust performance in active filters, transimpedance amplifiers, and ADC driver configurations without external compensation. Input bias current remains below 150nA max and exhibits tight channel-to-channel matching (≤1200µV offset match), critical for multi-channel sensor front-ends and differential signal processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 60MHz - supports stable closed-loop gain ≥10 at 6MHz or ≥2 at 30MHz for anti-aliasing filter design |
| Slew Rate | 20V/µs - enables clean 4VP-P output at 1.6MHz full-power bandwidth for video or fast-settling data acquisition |
| Input Offset Voltage | 350µV max - ensures ≤0.007% gain error in 5V-span 12-bit systems without trimming |
| Supply Current per Amp | 1.1mA (typ) - allows four channels to operate under 4.4mA total at 5V, suitable for battery-powered instruments |
| Rail-to-Rail Output Swing | Within 10mV of rails - maximizes dynamic range in low-voltage (3V/5V) systems, e.g., 0–4.99V output from 5V supply |
| Common-Mode Rejection | 102dB typ - rejects >100k:1 power-supply noise coupling into differential sensor signals |
| Operating Temp Range | –40°C to +85°C - qualified for industrial control, motor feedback, and outdoor environmental monitoring |
Pinout & Package
LT6222IGN#PBF is housed in a 16-lead narrow plastic SSOP (GN) package with exposed pad (internally connected to VS–), offering θJA = 135°C/W thermal resistance. The package supports fine-pitch surface-mount assembly and provides mechanical stability for high-reliability applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 50mA; requires local 0.1µF bypass to VS– |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; guard ring recommended for low-leakage designs |
| 3 | +IN A | Non-inverting input of Amp A - matched to –IN A for optimal CMRR and offset rejection |
| 4 | VS+ | Positive supply rail - accepts 2.2V–12.6V; decoupling mandatory within 5mm |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from other inputs; shares same die substrate |
| 6 | –IN B | Inverting input of Amp B - matches Amp A's input characteristics for multi-channel coherence |
| 7 | OUT B | Amplifier B output - independent output stage; no crosstalk with Amp A above 80dB |
| 8 | NC | No connect - floating pin; must not be tied to any potential |
| 9 | OUT D | Amplifier D output - fourth channel; identical AC/DC specs to Amp A/B/C |
| 10 | –IN D | Inverting input of Amp D - part of matched quad set; used in simultaneous sampling front-ends |
| 11 | +IN D | Non-inverting input of Amp D - maintains <175µV offset match vs Amp A over temperature |
| 12 | VS– | Negative supply rail - internally bonded to exposed pad; PCB thermal pad strongly recommended |
| 13 | +IN C | Non-inverting input of Amp C - third channel; supports independent gain configuration |
| 14 | –IN C | Inverting input of Amp C - matched input capacitance (2pF) enables consistent filter response across all four amps |
| 15 | OUT C | Amplifier C output - capable of driving 100Ω loads with <0.3% differential gain error (NTSC) |
| 16 | NC | No connect - floating pin; leave unconnected per datasheet guidance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables direct interfacing with 0–5V ADCs and DACs without level-shifting circuitry |
| Low input bias current (≤150nA) | Preserves signal integrity in high-impedance pH, thermocouple, or photodiode sensor interfaces |
| High PSRR (105dB typ) | Minimizes supply ripple injection into precision analog signal paths in mixed-signal PCBs |
| Quad-channel matching | Guarantees ≤1200µV input offset voltage match between channels for differential measurement accuracy |
| Wide supply range (2.2V–12.6V) | Supports single-supply 3.3V microcontroller systems and dual-supply ±5V legacy instrumentation |
| Low noise (10nV/√Hz) | Permits use in 16-bit+ data acquisition without degrading SNR in front-end gain stages |
Applications
| Instrumentation Amplifier Front-End | ADC Driver for SAR Converters |
|---|---|
Use Scenario: Four-channel simultaneous voltage measurement in portable multimeters or modular DAQ systems using 16-bit SAR ADCs. IC Role / Device Role / Timing Role: LT6222IGN#PBF serves as buffered, matched-gain preamplifier for each input channel prior to multiplexed ADC sampling. Use Value: Rail-to-rail output swing preserves full 0–5V ADC input range; 60MHz GBW ensures <1LSB settling in <300ns for 1MSPS conversion rates. | Use Scenario: Driving the reference and input pins of high-speed 1Msps SAR ADCs such as LTC2378-20 in medical imaging front-ends. IC Role / Device Role / Timing Role: LT6222IGN#PBF operates as unity-gain buffer on ADC reference path and gain-of-2 driver on analog input path. Use Value: 20V/µs slew rate prevents reference droop during ADC acquisition; 10nV/√Hz noise contributes <0.5LSB RMS noise in 100kHz bandwidth. |
| Active Low-Pass Filter Bank | Rail-to-Rail Sensor Interface |
Use Scenario: Multi-order anti-aliasing filtering for vibration sensing in predictive maintenance gateways using MEMS accelerometers. IC Role / Device Role / Timing Role: LT6222IGN#PBF implements cascaded Sallen-Key stages (2nd + 4th order) per sensor axis using one quad op-amp per 3-axis module. Use Value: Unity-gain stability eliminates need for external compensation; 60MHz GBW supports filter cutoffs up to 100kHz with <0.1dB passband ripple. | Use Scenario: Signal conditioning for 4–20mA loop-powered pressure transmitters operating from 3.3V microcontrollers. IC Role / Device Role / Timing Role: LT6222IGN#PBF acts as rail-to-rail I/V converter and output buffer, accepting 0–2.5V sensor output and driving 0–3.3V ADC input. Use Value: Input common-mode range includes ground (0V) and 3.3V rail, eliminating level-shift requirements; 1.1mA supply current minimizes loop power consumption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARUZ | Lower GBW (1.3MHz), lower noise (7.9nV/√Hz), higher precision (60µV max VOS), but 10× slower slew rate (0.7V/µs) | Better for DC-critical applications like weigh scales; unsuitable for >10kHz signal conditioning or ADC driving | Select OP4177ARUZ only when ultra-low offset drift (<0.3µV/°C) and low-frequency noise dominate over speed |
| TLV2464IDR | Lower supply current (550µA/amp), wider temp range (–40°C to 125°C), but reduced GBW (6.4MHz), higher VOS (1.6mV max), and no guaranteed rail-to-rail output at light loads | Preferred for automotive under-hood sensors; insufficient for 12-bit+ 100kSPS data acquisition | Choose TLV2464IDR for cost-sensitive, high-temp industrial controls where speed and DC precision are secondary |
Compared with OP4177ARUZ and TLV2464IDR, the LT6222IGN#PBF uniquely balances high-speed (60MHz/20V/µs), precision (350µV VOS), and rail-to-rail operation in a single quad package - making it the only option among the three capable of driving 1Msps SAR ADCs while maintaining 12-bit linearity across –40°C to 85°C.
Availability
LT6222IGN#PBF is available at Aetrix Electronics and suitable for industrial automation, test equipment, and portable instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed extended temperature performance.
Supply support for LT6222IGN#PBF 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets.
The LT6222IGN#PBF belongs to ADI's legacy Linear Technology precision op amp portfolio, engineered specifically for high-fidelity signal conditioning in space- and power-constrained instrumentation where speed, accuracy, and rail-to-rail operation are simultaneously required.
FAQ
What is the maximum supply voltage rating for the LT6222IGN#PBF?
The LT6222IGN#PBF has an absolute maximum total supply voltage (VS+ to VS–) of 12.6V. Operation beyond this rating risks permanent damage. For reliable long-term use, Analog Devices specifies operation from 2.2V to 12.6V, with full performance guaranteed at 3V, 5V, and ±5V supplies. At 12.6V, thermal management becomes critical due to increased quiescent power dissipation.
Does the LT6222IGN#PBF support true rail-to-rail input and output operation across its full temperature range?
Yes, the LT6222IGN#PBF guarantees rail-to-rail input common-mode range (0V to VS) and rail-to-rail output swing (within 10mV of either rail) over its full specified operating temperature range of –40°C to +85°C. This behavior is validated in the –40°C to 85°C electrical characteristics tables and confirmed by typical performance curves showing consistent output saturation voltage across temperature.
Can the LT6222IGN#PBF drive a 100Ω load while maintaining specified AC performance?
Yes, the LT6222IGN#PBF can source/sink up to 20mA per amplifier while maintaining rail-to-rail swing and specified distortion performance. At ISOURCE = 20mA, VOH remains within 900mV of VS+, and at ISINK = 20mA, VOL stays within 650mV of VS– (at 5V supply). For 100Ω loads, this corresponds to ±1V output swing - sufficient for many video and fast-settling applications.
Is the LT6222IGN#PBF pin-compatible with other quad op amps in 16-lead SSOP packages?
No, the LT6222IGN#PBF uses a proprietary pinout optimized for quad-channel symmetry and thermal performance, differing from industry-standard configurations like the LM324 or TL074. Its pin 8 and pin 16 are NC, and VS– is located at pin 12 with internal connection to the exposed pad - requiring specific PCB layout attention. Direct replacement is not possible without board revision.
What is the typical input noise performance of the LT6222IGN#PBF at 10kHz?
The LT6222IGN#PBF exhibits a typical input voltage noise density of 10nV/√Hz at 10kHz, with input current noise density of 0.8pA/√Hz at the same frequency. These values are measured under standard conditions (VS = 5V, VCM = 2.5V) and remain stable across temperature. The 0.1Hz–10Hz peak-to-peak input noise is 0.5µV, confirming low-frequency stability for precision DC measurements.
LT6222IGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 60 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 nA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 900µA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6222IGN#PBF FAQ
1.How can I place an order for LT6222IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6222IGN#PBF 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 LT6222IGN#PBF reliable?
The price and inventory of LT6222IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6222IGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6222IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6222IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6222IGN#PBF?
LT6222IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6222IGN#PBF 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 LT6222IGN#PBF?
For technical support, including LT6222IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6222IGN#PBF requirements.
6.How does Aetrix verify that LT6222IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6222IGN#PBF 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 LT6222IGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6222IGN#PBF?
All LT6222IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6222IGN#PBF, 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 LT6222IGN#PBF part is unused and in its original packaging.
Return procedure for LT6222IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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