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STMicroelectronics LM201ADT
- Part No.:
- LM201ADT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM201ADT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,455
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Product details
Overview
LM201ADT from STMicroelectronics is a single general-purpose operational amplifier with ±5V to ±22V supply range, 0.7–2 mV input offset voltage, 25–75 nA input bias current, and 10 V/µs slew rate in inverting configuration. It features external single-capacitor compensation (30 pF), no latch-up under common-mode overvoltage, and operates from –40°C to +105°C in SO-8 package-used in precision analog signal conditioning for industrial sensor interfaces.
For engineers reviewing the LM201ADT datasheet, LM201ADT pinout, LM201ADT application, or LM201ADT equivalent, this page delivers verified electrical parameters, SO-8 terminal mapping, real-world use cases in sensor front-ends and active filters, and validated alternative op-amps with documented performance trade-offs.
Technical Context
The LM201A uses a bipolar input stage with external frequency compensation via pins 1 and 8, enabling configurable bandwidth (up to 3.5 MHz) and slew rate (10 V/µs in inverting mode). Its input stage avoids phase inversion and latch-up even when common-mode voltage exceeds rails.
It supports stable unity-gain operation with 30 pF capacitor across pins 1–8, delivers ±12 V output swing into 10 kΩ at ±15 V supply, and maintains 80 dB CMRR and PSRR across its full operating temperature range (–40°C to +105°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±22 V - supports wide-rail industrial power domains without level-shifting |
| Input Offset Voltage | 0.7 mV (typ), 2 mV (max) at 25°C - enables DC-coupled amplification with <10 µV error in 100× gain stages |
| Slew Rate | 10 V/µs (inverting config) - allows clean 100 kHz full-scale sine output at 10 Vpp |
| Gain Bandwidth Product | 0.5–1 MHz - sets usable closed-loop bandwidth limit for stable 10×–100× gain configurations |
| Input Bias Current | 25–75 nA (25°C) - permits high-impedance sensor interfacing (e.g., thermocouples, pH electrodes) |
| Operating Temperature | –40°C to +105°C - qualified for under-hood automotive and industrial control cabinet environments |
| Output Short-Circuit Current | 10–30 mA - provides inherent fault limiting without external current-sense circuitry |
Pinout & Package
LM201ADT is housed in an 8-pin plastic SO (Small Outline) package, 5.0 mm × 6.2 mm body, 1.27 mm pitch, gull-wing leads, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Balance (Compensation) | Connects to compensation capacitor (30 pF) to set dominant pole and prevent oscillation |
| 2 | Inverting Input | High-impedance node for feedback network attachment; sensitive to PCB leakage and layout parasitics |
| 3 | Non-inverting Input | DC reference or sensor signal input; common-mode range extends to ±15 V with ±20 V supply |
| 4 | VCC– | Negative supply rail connection; must be decoupled within 1 cm of pin with ≥100 nF ceramic capacitor |
| 5 | Balance (Compensation) | Second compensation terminal; used with pin 1 to configure feed-forward or single-pole compensation |
| 6 | Output | Class-A output stage capable of ±12 V swing into 10 kΩ; limited to 30 mA short-circuit current |
| 7 | VCC+ | Positive supply rail connection; requires local 100 nF ceramic decoupling for stability |
| 8 | Compensation | Capacitor return node for external compensation network; critical for unity-gain stability |
Key Features
| Feature | Design Value |
|---|---|
| External compensation | Enables precise bandwidth/slew rate tuning via single 30 pF capacitor-no internal fixed compensation limits |
| No phase reversal | Operates safely beyond input common-mode range without output polarity flip-critical for sensor overvoltage events |
| Overload protection | Input and output stages include built-in current limiting-eliminates need for external series resistors in harsh EMI environments |
| Wide supply range | ±5 V to ±22 V operation supports legacy industrial systems and battery-backed instrumentation rails |
Applications
| Industrial Sensor Signal Conditioning | Active Low-Pass Filter (10 kHz) |
|---|---|
Use Scenario: Amplifying low-level mV outputs from RTDs and strain gauges in PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with 100× closed-loop gain and 0.7 mV max offset. Use Value: Maintains <±0.1% linearity error over –40°C to +85°C without calibration due to low drift (3 µV/°C). | Use Scenario: 4th-order Butterworth filter for anti-aliasing before 100 kSPS ADC in data acquisition systems. IC Role / Device Role / Timing Role: Unity-gain stable 2nd-order section with external 30 pF compensation ensuring ≤0.5% passband ripple. Use Value: Achieves 10 kHz cutoff with <1° phase shift at 1 kHz-preserves time-domain fidelity of pulse signals. |
| Thermocouple Cold-Junction Compensation | Current-to-Voltage Converter (4–20 mA) |
Use Scenario: Linearizing and amplifying Type-K thermocouple outputs in HVAC controller front-ends. IC Role / Device Role / Timing Role: High-Z non-inverting amplifier with cold-junction reference subtraction using matched resistor network. Use Value: 25 nA input bias current minimizes voltage drop across 100 kΩ reference resistors, reducing cold-junction error to <0.2°C. | Use Scenario: Converting 4–20 mA loop current to 0.5–2.5 V for microcontroller ADC input in field transmitters. IC Role / Device Role / Timing Role: Transimpedance amplifier with 125 Ω feedback resistor and rail-to-rail output swing capability. Use Value: ±12 V output swing ensures full 2 V span with 100 mV headroom at ±15 V supply-avoids clipping during transient surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DT | Internal compensation, lower slew rate (0.6 V/µs), rail-to-rail output not supported | Lower cost, lower precision; suitable for non-critical DC amplification only | Select when bandwidth <100 kHz and offset >5 mV acceptable |
| TL081CDT | JFET input (50 pA bias), higher GBP (3 MHz), no external compensation required | Better high-Z source drive but higher noise (18 nV/√Hz); less robust against input overvoltage | Select for photodiode amps or audio preamps where low bias current outweighs latch-up risk |
Compared with LM358DT and TL081CDT, LM201ADT uniquely balances external compensation flexibility, bipolar input precision, and industrial temperature tolerance-making it optimal for calibrated sensor signal chains where stability and DC accuracy are prioritized over ultra-low power or ultra-high speed.
Availability
LM201ADT is available at Aetrix Electronics and suitable for industrial sensor interfaces, analog filter design, thermocouple signal conditioning, and 4–20 mA loop receivers requiring stable component supply across extended temperature ranges.
Supply support for LM201ADT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, MCU, power, and MEMS products for industrial, automotive, and consumer markets.
The LM201A belongs to ST's legacy precision op-amp product line, engineered specifically for applications demanding external compensation control, wide supply range, and reliable operation in harsh thermal environments.
FAQ
What compensation capacitor value is required for stable unity-gain operation?
A 30 pF capacitor between pins 1 and 8 is specified for unity-gain stability per STMicroelectronics' datasheet. This value sets the dominant pole at ~10 Hz, ensuring ≥45° phase margin with 2 kΩ load and 100 pF capacitance. Deviations require re-evaluation of step response overshoot and settling time.
Can LM201ADT operate with a single +15 V supply?
No-LM201ADT requires dual symmetric supplies (e.g., ±15 V) to meet its specified input common-mode range (±15 V) and output swing (±12 V). Single-supply operation violates absolute maximum ratings and causes clipping or undefined behavior at input/output extremes.
Is LM201ADT pin-compatible with LM358 or TL081?
No-LM201ADT uses an 8-pin SO package with unique pin functions: pins 1 and 5 are balance/compensation terminals not present on LM358 or TL081. Direct replacement requires PCB redesign and compensation network adjustment.
What is the maximum capacitive load LM201ADT can drive without instability?
LM201ADT is characterized up to 100 pF with 2 kΩ load in the datasheet. Driving >100 pF requires series output resistance (≥100 Ω) or reduced closed-loop gain to maintain phase margin. Stability verification via step response measurement is mandatory for loads exceeding 150 pF.
LM201ADT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 1.8mA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM201ADT FAQ
1.How can I place an order for LM201ADT through Aetrix?
Please submit a Request for Quotation (RFQ) for LM201ADT 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 LM201ADT reliable?
The price and inventory of LM201ADT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM201ADT is usually 5 days.
3.What payment methods are accepted for LM201ADT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM201ADT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM201ADT?
LM201ADT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM201ADT 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 LM201ADT?
For technical support, including LM201ADT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM201ADT requirements.
6.How does Aetrix verify that LM201ADT is sourced from the original manufacturer or authorized distributors?
All LM201ADT 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 LM201ADT meets industry standards.
7.What is the process for return or replacement of LM201ADT?
All LM201ADT units undergo pre-shipment inspection (PSI). If there is an issue with LM201ADT, 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 LM201ADT part is unused and in its original packaging.
Return procedure for LM201ADT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM201ADT Tags
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