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Analog Devices Inc. LT1213CN8#PBF
- Part No.:
- LT1213CN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1213CN8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,943
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Product details
Overview
LT1213CN8#PBF from Analog Devices (formerly Linear Technology) is a dual precision operational amplifier optimized for single-supply operation with 28MHz gain-bandwidth, 12V/µs slew rate, and ≤275µV input offset voltage. It operates from 2.5V to 36V total supply, delivers ±30mA output drive, and supports rail-to-rail input (including ground) and near-rail output swing - ideal for 12-bit DAC current-to-voltage conversion and battery-powered instrumentation.
For engineers reviewing the LT1213CN8#PBF datasheet, LT1213CN8#PBF pinout, LT1213CN8#PBF application, or LT1213CN8#PBF equivalent, key selection criteria include guaranteed DC precision at 3.3V/5V/±15V, low 10nV/√Hz input noise, fast 500ns 0.01% settling on 2V steps, and compatibility with low-impedance loads requiring ≥30mA drive without external buffers.
Technical Context
The LT1213CN8#PBF uses a proprietary high-speed bipolar input stage enabling simultaneous precision and bandwidth - achieving 275µV max VOS while maintaining 28MHz GBW and 12V/µs slew rate. Its input stage tolerates common-mode voltages extending 0.3V below V– and up to V+–1.5V, supporting true single-supply signal conditioning down to ground-referenced inputs.
Internally compensated for unity-gain stability, it drives capacitive loads up to 100pF with controlled overshoot and exhibits >120dB PSRR and CMRR at DC, degrading only modestly to >84dB at 10kHz. Channel separation exceeds 128dB at 10kHz, confirming minimal crosstalk in dual-channel configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 28MHz typical - enables stable closed-loop operation up to 1MHz with AV = 28, suitable for anti-aliasing filters and wideband sensor interfaces. |
| Slew Rate | 12V/µs typical - supports clean 10VP-P output at 100kHz without slewing distortion in active filter stages. |
| Input Offset Voltage | ≤275µV max at 25°C - eliminates trimming in 12-bit systems (≤0.45LSB error at 2.5V full-scale) and 16-bit systems (≤1.8LSB at 10V full-scale). |
| Supply Range | 2.5V to 36V total - powers directly from single Li-ion (3.3V), USB (5V), or industrial rails (±15V) without regulators. |
| Output Drive Current | ±30mA minimum - drives 50Ω cables, 100Ω DAC reference loads, or multiple parallel ADC inputs without gain degradation. |
| Input Noise Density | 10nV/√Hz at 1kHz - preserves SNR in photodiode transimpedance amplifiers and low-level sensor front-ends. |
| Settling Time | 500ns to 0.01% on 2V step - meets timing budgets in multiplexed data acquisition systems sampling at ≥1MSps. |
Pinout & Package
LT1213CN8#PBF is housed in an 8-pin plastic DIP (N8 package), 9.27mm × 6.35mm body, 0.300-inch lead pitch, through-hole mountable with JEDEC MS-001 compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking ≥30mA, swings within 4mV of V– and 1.25V of V+ at full load. |
| 2 | –IN A | Inverting input of Amplifier A - high-impedance node (≥10MΩ), accepts signals down to V– – 0.3V. |
| 3 | +IN A | Non-inverting input of Amplifier A - identical impedance and voltage range as Pin 2. |
| 4 | V– | Negative supply rail - must be bypassed with 0.01µF ceramic capacitor placed ≤25mm from pin. |
| 5 | V+ | Positive supply rail - bypassed identically to Pin 4; supports split or single-ended supplies. |
| 6 | OUT B | Amplifier B output - electrically isolated from OUT A; shares same drive capability and swing limits. |
| 7 | –IN B | Inverting input of Amplifier B - independent of Amplifier A; no internal coupling. |
| 8 | +IN B | Non-inverting input of Amplifier B - fully decoupled; enables dual-channel signal processing without crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 0.3V below V– and to V+–1.5V - enables direct interfacing with 0V-referenced sensors and unipolar DACs. |
| Low quiescent current | 2.7mA per amplifier at 5V - extends battery life in portable medical monitors and handheld test equipment. |
| High PSRR/CMRR | ≥90dB from DC to 10kHz - rejects power supply ripple and common-mode interference in noisy industrial environments. |
| Capacitive load drive | Stable with ≥100pF load - eliminates need for isolation resistors when driving ADC sample-and-hold inputs or long PCB traces. |
| Wide temperature operation | Specified from –40°C to +85°C - qualified for automotive cabin electronics and outdoor instrumentation. |
Applications
| Photodiode Amplifier | DAC Current-to-Voltage Converter |
|---|---|
Use Scenario: Converting nanoampere-level photocurrent from silicon photodiodes into measurable voltage signals in spectrophotometers and smoke detectors. IC Role / Device Role / Timing Role: Transimpedance amplifier with low input bias current (≤200nA) and low input noise (10nV/√Hz) to maximize dynamic range. Use Value: Enables detection of <10nA signals with <1µV RMS noise floor, preserving resolution in 16-bit data acquisition systems. | Use Scenario: Converting current output from precision DACs (e.g., AD5422) into stable, low-drift analog control voltages for industrial valve actuators. IC Role / Device Role / Timing Role: Precision I-to-V converter with ≤275µV VOS and 0.01% settling in 500ns - ensures monotonicity and accuracy across full DAC range. Use Value: Eliminates calibration trimmers in 4–20mA loop transmitters, reducing BOM cost and assembly time while meeting IEC 61000-4-5 surge immunity requirements. |
| Battery-Powered Instrumentation | Active Filter Stage |
Use Scenario: Signal conditioning front-end in handheld multimeters and portable oscilloscopes powered by two AA cells (3V nominal). IC Role / Device Role / Timing Role: Dual-channel amplifier providing gain, level-shifting, and buffering while operating from 2.5V minimum supply. Use Value: Delivers full performance at 3.3V with only 2.7mA per channel - extends battery life to >200 hours while maintaining 12-bit linearity. | Use Scenario: Third-order Butterworth low-pass filter (1MHz cutoff) in ultrasound receive chains and audio anti-aliasing paths. IC Role / Device Role / Timing Role: High-speed, low-distortion op amp with 28MHz GBW and 0.001% THD - maintains phase coherence across band. Use Value: Achieves <–60dB stopband attenuation at 3× cutoff frequency without external compensation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1213CS8#PBF | Same core specs but in SO-8 surface-mount package; θJA = 150°C/W vs 100°C/W for N8; higher thermal resistance limits max power at high ambient. | Preferred for space-constrained PCBs; requires reflow soldering and lacks through-hole mechanical robustness. | Select LT1213CS8#PBF only when board area is critical and thermal management includes copper pour or forced air. |
| OPA2182IDR | Lower VOS (4µV typ), lower noise (5.7nV/√Hz), but slower GBW (5.7MHz); CMOS input vs bipolar; 1.8–36V supply. | Better for ultra-precision DC-coupled systems; unsuitable for >100kHz signal paths due to bandwidth limitation. | Choose OPA2182IDR for strain gauge bridges or thermocouple amps where speed is secondary to offset drift. |
Compared with LT1213CS8#PBF, LT1213CN8#PBF offers superior thermal dissipation in high-power single-supply configurations and mechanical stability in vibration-prone environments; versus OPA2182IDR, it trades 24× higher offset for 5× greater bandwidth and 2× higher slew rate - making it optimal for mixed-signal data acquisition where both precision and speed matter.
Availability
LT1213CN8#PBF is available at Aetrix Electronics and suitable for photodiode amplification, DAC current-to-voltage conversion, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1213CN8#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LT1213CN8#PBF belongs to Linear Technology's legacy precision op amp family, engineered specifically for applications demanding simultaneous high speed, low offset, and single-supply operability - bridging the gap between general-purpose and ultra-precision amplifiers.
FAQ
What is the maximum supply voltage for LT1213CN8#PBF?
The LT1213CN8#PBF supports a total supply voltage range of 2.5V to 36V. At the upper limit, it operates reliably on ±18V split supplies or 36V single-ended rails. Absolute maximum rating is 36V; exceeding this risks permanent damage. Derating is recommended above 30V for long-term reliability under thermal stress.
Does LT1213CN8#PBF support true rail-to-rail output swing?
The LT1213CN8#PBF does not achieve full rail-to-rail output swing. Its output swings to within 4mV of V– (ground in single-supply mode) but only to within ~1.25V of V+ at ±30mA sink/source. At light loads (<1mA), it reaches within 70mV of V+. This behavior is inherent to its bipolar output stage and must be accounted for in headroom-critical designs.
Can LT1213CN8#PBF drive a 50Ω load directly?
Yes, the LT1213CN8#PBF can drive a 50Ω load directly, delivering ±30mA minimum output current. However, at full swing into 50Ω, output voltage compliance reduces - e.g., on ±15V supplies, maximum symmetric output is ~±13.7V. Thermal considerations require limiting continuous 50Ω drive to ambient temperatures ≤67.5°C in the N8 package per datasheet thermal calculations.
What is the input bias current specification for LT1213CN8#PBF?
The LT1213CN8#PBF has a maximum input bias current of 200nA at 25°C, with typical value of 100nA. This is confirmed in the 5V electrical characteristics table under "IB" parameter. The bipolar input architecture results in higher bias current than CMOS op amps but enables superior speed and noise performance.
Is LT1213CN8#PBF suitable for use with 3.3V microcontrollers?
Yes, the LT1213CN8#PBF is fully specified and characterized at 3.3V single supply, with guaranteed performance including 275µV max VOS, 12V/µs slew rate, and 500ns 0.01% settling. Its input common-mode range includes ground and extends to ~1.8V, allowing direct interface with 3.3V logic outputs and ADC references without level-shifting circuitry.
LT1213CN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 12V/µs
- Gain Bandwidth Product:
- 28 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 90 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 3.4mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1213CN8#PBF FAQ
1.How can I place an order for LT1213CN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1213CN8#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 LT1213CN8#PBF reliable?
The price and inventory of LT1213CN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1213CN8#PBF is usually 5 days.
3.What payment methods are accepted for LT1213CN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1213CN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1213CN8#PBF?
LT1213CN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1213CN8#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 LT1213CN8#PBF?
For technical support, including LT1213CN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1213CN8#PBF requirements.
6.How does Aetrix verify that LT1213CN8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1213CN8#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 LT1213CN8#PBF meets industry standards.
7.What is the process for return or replacement of LT1213CN8#PBF?
All LT1213CN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1213CN8#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 LT1213CN8#PBF part is unused and in its original packaging.
Return procedure for LT1213CN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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