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STMicroelectronics TS272CPT
- Part No.:
- TS272CPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS272CPT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
TS272CPT from STMicroelectronics is a dual CMOS operational amplifier in TSSOP-8 package, designed for single-supply (3–16 V) or split-supply operation, featuring 3.5 MHz gain-bandwidth product, ±30 mA output current, rail-to-ground output swing, and 1 mA per amplifier supply current at 10 V. It delivers stable performance on capacitive loads with 40° phase margin and low 0.25–12 mV input offset voltage.
For engineers reviewing the TS272CPT datasheet, TS272CPT pinout, TS272CPT application, or TS272CPT equivalent, this device supports precision signal conditioning in battery-powered instrumentation, sensor interfaces, and analog front-ends where low power, rail-to-ground output, and high CMRR (65–80 dB) are critical selection criteria.
Technical Context
The TS272CPT uses ST's silicon-gate CMOS process to achieve high input impedance (>1012 Ω), ultra-low input bias current (1–300 pA), and minimal input offset drift (2 µV/°C). Its two-stage architecture enables stable unity-gain operation with ≥40° phase margin even under 100 pF capacitive load.
It operates across 0°C to +70°C (TS272C grade), supports common-mode input range from ground to VCC − 1.5 V, and maintains large-signal voltage gain ≥10 V/mV while delivering 5.5 V/µs slew rate and 30 nV/√Hz input noise at 1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3–16 V - Enables direct use with 3.3 V, 5 V, and 12 V rails without level-shifting. |
| Gain Bandwidth Product | 3.5 MHz - Supports closed-loop bandwidth up to ~350 kHz at gain = 10 for sensor amplification. |
| Input Offset Voltage | 0.25–12 mV (grade-dependent) - Determines DC error floor in precision DC-coupled stages. |
| Output Current | ±30 mA - Drives 330 Ω loads at ±10 V output swing or drives ADC reference buffers directly. |
| Phase Margin | 40° - Ensures stable unity-gain buffer operation with typical 100 pF PCB trace or filter capacitance. |
| Common-Mode Rejection | 65–80 dB - Rejects supply ripple and shared-noise coupling in single-supply mixed-signal systems. |
| Slew Rate | 5.5 V/µs - Supports <1 µs settling to 0.1% for 10 V step inputs in active filters and comparators. |
Pinout & Package
TSSOP-8 (Thin Shrink Small Outline Package), 3.00 mm × 4.40 mm body, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Amplifier A output; capable of rail-to-ground swing and ±30 mA sourcing/sinking. |
| 2 | Inverting Input 1 | High-impedance node (≥1012 Ω); sensitive to leakage-requires guard ring in high-Z designs. |
| 3 | Non-inverting Input 1 | Matches Pin 2 impedance; used for unity-gain follower or non-inverting gain configuration. |
| 4 | VCC− (GND) | Ground reference for dual supply or system ground in single-supply mode. |
| 5 | Non-inverting Input 2 | Independent high-Z input for second channel; shares same VCC− reference as Channel 1. |
| 6 | Inverting Input 2 | Matched to Pin 2; enables dual-channel differential or independent signal paths. |
| 7 | Output 2 | Amplifier B output; fully independent, identical specs to Pin 1. |
| 8 | VCC+ | Positive supply rail; must be decoupled locally with 100 nF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Enables true single-supply operation down to 0 V output-critical for interfacing with 0–3.3 V ADCs. |
| Stable on capacitive loads | 40° phase margin with 100 pF load eliminates need for isolation resistors in driving cables or filters. |
| Low input bias current | 1–300 pA max ensures <1 mV error in 1 MΩ source impedance applications (e.g., pH probes). |
| Three offset voltage grades | TS272C (0.25–12 mV) offers cost-optimized precision for industrial sensors without trimming. |
| CMOS input stage | Eliminates JFET temperature drift issues-input bias current drift <2 µV/°C improves long-term DC stability. |
Applications
| Portable Gas Sensor Interface | Industrial Temperature Transmitter |
|---|---|
Use Scenario: Amplifying low-level mV outputs from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel transimpedance and level-shift amplifier with rail-to-ground output feeding 12-bit SAR ADC. Use Value: 1 mA per amplifier supply current extends battery life >2 years; 0.25 mV offset (TS272AC variant) minimizes calibration burden. | Use Scenario: Conditioning PT100 bridge signals in 4–20 mA loop-powered transmitters operating at 7–36 V supply. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier and second-stage output driver for HART modem coupling. Use Value: ±30 mA output drives 250 Ω loop resistor and HART AC signal simultaneously; 80 dB CMRR rejects common-mode noise on long field wiring. |
| Medical ECG Front-End Stage | Automotive Cabin Air Quality Monitor |
Use Scenario: Low-noise, low-power amplification of microvolt-level biopotential signals in wearable ECG patches. IC Role / Device Role / Timing Role: Dual-channel AC-coupled amplifier with high-pass filtering and gain setting before ADC. Use Value: 30 nV/√Hz input noise preserves SNR at 1 Hz; rail-to-ground output simplifies single-supply 3.3 V ADC interface. | Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in 12 V automotive HVAC modules with strict EMC requirements. IC Role / Device Role / Timing Role: Dual op-amp for sensor excitation control and analog output buffering to MCU ADC. Use Value: Stable 40° phase margin prevents oscillation when driving long PCB traces to remote sensors; 65 dB SVR suppresses ignition noise on 12 V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual CMOS op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV272IPWR | Lower supply current (170 µA/amp), lower GBW (2.2 MHz), wider temp range (−40°C to +125°C) | Better suited for ultra-low-power always-on sensing; less bandwidth for fast pulse amplification | Select when battery life >5 years required and signal bandwidth <200 kHz |
| LMV358IDR | Higher supply current (190 µA/amp), rail-to-rail output (not rail-to-ground input), lower offset (1.8 mV typ) | Superior output swing but limited common-mode range (VCC − 0.1 V min); no true ground-input capability | Select when full rail-to-rail I/O needed and ground-referenced input not required |
Compared with TLV272IPWR and LMV358IDR, TS272CPT uniquely combines rail-to-ground output, 3.5 MHz bandwidth, and 1 mA supply current-making it optimal for industrial sensor signal chains requiring both precision DC accuracy and moderate speed without rail-to-rail input constraints.
Availability
TS272CPT is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20 mA transmitters, automotive cabin air quality monitors, and battery-powered environmental sensors requiring stable component supply across extended temperature and lifecycle conditions.
Supply support for TS272CPT 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, Switzerland, specializing in automotive, industrial, power, and analog/mixed-signal technologies with over 40 years of op-amp design heritage.
The TS272 series belongs to ST's legacy precision analog portfolio, engineered specifically for cost-sensitive industrial and instrumentation applications demanding robustness, low power, and proven reliability in single-supply configurations.
FAQ
What is the maximum capacitive load the TS272CPT can drive without compensation?
The TS272CPT maintains ≥40° phase margin with up to 100 pF capacitive load at unity gain, as verified in Figure 8 of the official datasheet. For loads exceeding 100 pF, a small series resistor (10–47 Ω) between output and load is recommended to preserve stability without degrading DC accuracy.
Does TS272CPT support true single-supply operation with input signals at ground potential?
Yes. The common-mode input voltage range extends to VCC− (ground), enabling direct amplification of 0 V referenced signals such as thermocouple outputs or current-sense shunt voltages. This is confirmed in the "Common Mode Input Voltage Range" specification: 0 to VCC+ − 1.5 V.
How does the input offset voltage vary across temperature for TS272CPT?
The TS272CPT exhibits a maximum input offset voltage drift of 2 µV/°C, as specified in the Electrical Characteristics table. This low drift-enabled by its CMOS input stage-ensures minimal DC error shift over 0°C to +70°C operation, critical for unattended sensor logging systems.
Can TS272CPT replace older bipolar op-amps like LM358 in existing designs?
Yes, with layout review. TS272CPT offers higher input impedance (>1012 Ω vs. ~1 MΩ), lower input bias current (pA vs. nA), and rail-to-ground output-but requires updated decoupling (100 nF near VCC+) and may need feedback network recalibration due to different GBW and slew rate. No pin changes are needed in SO-8 or TSSOP-8 footprints.
TS272CPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 5.5V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 1mA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TS272CPT FAQ
1.How can I place an order for TS272CPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS272CPT 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 TS272CPT reliable?
The price and inventory of TS272CPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS272CPT is usually 5 days.
3.What payment methods are accepted for TS272CPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS272CPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS272CPT?
TS272CPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS272CPT 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 TS272CPT?
For technical support, including TS272CPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS272CPT requirements.
6.How does Aetrix verify that TS272CPT is sourced from the original manufacturer or authorized distributors?
All TS272CPT 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 TS272CPT meets industry standards.
7.What is the process for return or replacement of TS272CPT?
All TS272CPT units undergo pre-shipment inspection (PSI). If there is an issue with TS272CPT, 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 TS272CPT part is unused and in its original packaging.
Return procedure for TS272CPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS272CPT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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