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Analog Devices Inc. LT1214CS#PBF
- Part No.:
- LT1214CS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1214CS#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:452
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Product details
Overview
LT1214CS#PBF from Analog Devices (formerly Linear Technology) is a quad precision operational amplifier optimized for single-supply operation with 28MHz gain-bandwidth, 12V/µs slew rate, and ±30mA output drive. It features 275µV max input offset voltage, rail-to-rail input range including ground, and output swing to ground while sinking current - enabling high-accuracy signal conditioning in 3.3V/5V battery-powered systems and photodiode amplifiers.
For engineers reviewing the LT1214CS#PBF datasheet, LT1214CS#PBF pinout, LT1214CS#PBF application, or LT1214CS#PBF equivalent, key selection criteria include guaranteed DC precision at 3.3V, 14-pin SOIC package thermal resistance (θJA = 100°C/W), fast 500ns settling to 0.01% for 2V steps, and compatibility with low-impedance loads requiring ≥30mA drive.
Technical Context
The LT1214CS#PBF employs a proprietary bipolar input stage delivering low input bias current (200nA max) and low noise (10nV/√Hz, 0.2pA/√Hz), while maintaining high-speed performance across supply voltages from 2.5V to 36V total. Its architecture supports stable operation with capacitive loads up to 1000pF and provides >128dB channel separation at 1kHz.
It operates over –40°C to +85°C with specified performance at 3.3V, 5V, and ±15V supplies, and includes internal protection against phase reversal when inputs exceed rails. The device uses a unity-gain-stable compensation scheme enabling use in active filters, DAC I/V converters, and precision instrumentation without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 28MHz typical - enables stable closed-loop operation up to ~1MHz with AV = 10. |
| Slew Rate | 12V/µs typical - supports clean 10V step response in ≤1.1µs to 1mV error. |
| Input Offset Voltage | 275µV maximum at 25°C - ensures ≤1.8LSB error in 10V full-scale 16-bit systems. |
| Supply Current per Amp | 3.5mA maximum - allows four-channel operation at <14mA total quiescent draw. |
| Output Drive Current | ±30mA minimum - directly drives 500Ω loads or 1000pF capacitive loads without buffer. |
| Input Voltage Range | Includes ground on single supply - accepts signals down to V– (0V), simplifying sensor interfacing. |
| Common-Mode Rejection | 86dB minimum - maintains accuracy despite supply ripple or ground bounce. |
Pinout & Package
LT1214CS#PBF is housed in a 16-lead narrow SOIC (S package) with exposed pad thermal enhancement. Pin numbering follows JEDEC MS-012 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking ≥30mA into resistive or capacitive loads. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node (<40MΩ) with 200nA max bias current. |
| 3 | +IN A | Non-inverting input of Amp A - rail-to-rail common-mode range supports ground-referenced sensors. |
| 4 | V+ | Positive supply rail - bypass with 0.01µF ceramic capacitor within 25mm of pin. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from other channels; 128dB channel separation. |
| 6 | –IN B | Inverting input of Amp B - matched to Amp A for differential pair configurations. |
| 7 | OUT B | Amplifier B output - identical drive capability and settling behavior as OUT A. |
| 8 | NC | No connect - internally unused; must remain unconnected per datasheet. |
| 9 | OUT D | Amplifier D output - fully independent; supports simultaneous multi-channel signal processing. |
| 10 | –IN D | Inverting input of Amp D - same input capacitance (10pF) and noise specs as other inputs. |
| 11 | +IN D | Non-inverting input of Amp D - compatible with single-ended or differential input topologies. |
| 12 | V– | Negative supply rail - connects to ground in single-supply mode; requires local 0.01µF bypass. |
| 13 | +IN C | Non-inverting input of Amp C - supports independent biasing for multi-stage filtering. |
| 14 | –IN C | Inverting input of Amp C - matched offset drift (6µV/°C max) with other amplifiers. |
| 15 | OUT C | Amplifier C output - delivers same 12V/µs slew rate and 28MHz GBW as all channels. |
| 16 | NC | No connect - internally unused; must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with ground reference | Enables direct interface to 0V-referenced transducers (e.g., thermocouples, bridge sensors) without level-shifting circuitry. |
| Output swing to ground while sinking current | Delivers true 0V output under load - critical for driving ADC reference buffers or LED cathodes in single-supply systems. |
| Low 10nV/√Hz input voltage noise | Preserves SNR in low-level signal paths such as photodiode transimpedance amplifiers operating at 1kHz–1MHz. |
| Guaranteed operation down to 2.5V total supply | Supports long-life battery operation in portable medical devices and IoT edge nodes powered by single Li-ion cells. |
| 128dB channel separation at 1kHz | Prevents crosstalk between simultaneously active channels in multi-sensor data acquisition systems. |
Applications
| Photodiode Amplifier | DAC Current-to-Voltage Converter |
|---|---|
Use Scenario: Converting weak photocurrents (100pA–10µA) from silicon photodiodes into precise voltage outputs for optical sensing. IC Role / Device Role / Timing Role: Transimpedance amplifier with low input bias current (200nA max) and low input voltage noise (10nV/√Hz) to maximize dynamic range. Use Value: Enables sub-100nA resolution without T-network compensation, reducing component count and board space vs. FET-input alternatives. | Use Scenario: Converting 12–16-bit DAC output currents into accurate, low-drift analog voltages for precision control loops. IC Role / Device Role / Timing Role: Precision I/V converter with 275µV max VOS and 6µV/°C drift - minimizing integral nonlinearity (INL) errors. Use Value: Achieves ≤0.45LSB offset error in 2.5V full-scale 12-bit systems, eliminating need for system-level trimming. |
| Battery-Powered Instrumentation | Single-Supply Active Filter |
Use Scenario: Signal conditioning front-end for handheld multimeters, portable oscilloscopes, and field-deployable environmental monitors. IC Role / Device Role / Timing Role: Quad op-amp providing simultaneous gain, filtering, level-shifting, and buffering from a single 3.3V supply. Use Value: 3.5mA max per amplifier enables four-channel operation at <14mA total, extending battery life beyond 20 hours on two AA cells. | Use Scenario: Implementing 1MHz Butterworth low-pass filters in audio and sensor anti-aliasing applications. IC Role / Device Role / Timing Role: Unity-gain-stable amplifier with 28MHz GBW and 12V/µs slew rate - supporting filter Q-factors up to 5 without peaking. Use Value: Delivers flat group delay and <0.01% settling in 500ns, meeting stringent timing requirements for oversampled ADC drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1214CN | 14-pin plastic DIP package; θJA = 70°C/W; same electrical specs but larger footprint and higher thermal resistance. | Preferred for prototyping or through-hole PCBs where SOIC reflow is unavailable. | Select LT1214CN only when manual assembly or socket-based testing is required. |
| OPA4134UA | FET-input architecture; 10pA max IB; lower 8nV/√Hz noise; 4MHz GBW; 20V/µs slew rate - trades speed for ultra-low input current. | Better suited for high-impedance pH electrodes or piezoelectric sensors where input leakage dominates error budget. | Choose OPA4134UA only when input bias current <100pA is mandatory and bandwidth <5MHz suffices. |
Compared with LT1214CN and OPA4134UA, the LT1214CS#PBF uniquely balances high speed (28MHz GBW), precision (275µV VOS), and single-supply usability (rail-to-rail input, ground-swing output) in a compact 16-pin SOIC - making it optimal for space-constrained, battery-operated precision analog systems.
Availability
LT1214CS#PBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, photodiode amplification, DAC current-to-voltage conversion, and single-supply active filtering requiring stable component supply across industrial temperature ranges.
Supply support for LT1214CS#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 LT1214CS#PBF belongs to ADI's legacy Linear Technology precision op amp product line, engineered for applications demanding both wide bandwidth and DC accuracy in low-voltage, single-supply environments - especially where rail-to-rail input and ground-swing output are essential.
FAQ
What is the maximum supply voltage for LT1214CS#PBF?
The LT1214CS#PBF supports a total supply voltage range of 2.5V to 36V. At maximum ambient temperature (85°C) and with a 500Ω load, the recommended maximum supply is ±12.2V (15.8V total) to maintain junction temperature below 150°C in its 16-pin SOIC package. Absolute maximum rating is 36V across V+ and V– pins.
Does LT1214CS#PBF support true rail-to-rail output swing?
The LT1214CS#PBF does not provide rail-to-rail output swing. Its output swings to within 4mV of the negative rail (V–) under no load and to within ~0.475V of the positive rail (V+) when sinking 20mA. This ground-swing capability on the low side - combined with rail-to-rail input - makes it ideal for single-supply systems where true 0V output is required.
Can LT1214CS#PBF drive capacitive loads?
Yes, the LT1214CS#PBF is stable driving capacitive loads up to 1000pF with appropriate feedback compensation. Typical applications use 10–100pF feedback capacitors to suppress peaking caused by stray capacitance. The device's phase margin remains >45° at 100pF load with AV = 1, enabling robust performance in transimpedance and filter circuits without external isolation resistors.
What is the input offset voltage drift specification for LT1214CS#PBF?
The LT1214CS#PBF has a maximum input offset voltage drift of 6µV/°C over the –40°C to +85°C operating range. This value applies specifically to the 16-pin SOIC (S) package variant and is confirmed in the 5V and 3.3V electrical characteristics tables. Drift is lower (1–3µV/°C) in ceramic DIP packages but not applicable to the CS#PBF part number.
Is LT1214CS#PBF pin-compatible with other quad op amps like LM324?
No, LT1214CS#PBF is not pin-compatible with LM324 or other industry-standard quad op amps. Its 16-pin SOIC pinout differs significantly: pins 1–7 and 9–15 serve active functions (four amplifiers + supplies), while pins 8 and 16 are NC. LM324 uses an 8-pin SOIC or 14-pin DIP layout with different pin assignments. Board redesign is required for substitution.
LT1214CS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 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:
- Surface Mount
- Supplier Device Package:
- 16-SO
LT1214CS#PBF FAQ
1.How can I place an order for LT1214CS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1214CS#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 LT1214CS#PBF reliable?
The price and inventory of LT1214CS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1214CS#PBF is usually 5 days.
3.What payment methods are accepted for LT1214CS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1214CS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1214CS#PBF?
LT1214CS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1214CS#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 LT1214CS#PBF?
For technical support, including LT1214CS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1214CS#PBF requirements.
6.How does Aetrix verify that LT1214CS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1214CS#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 LT1214CS#PBF meets industry standards.
7.What is the process for return or replacement of LT1214CS#PBF?
All LT1214CS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1214CS#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 LT1214CS#PBF part is unused and in its original packaging.
Return procedure for LT1214CS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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