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STMicroelectronics TS272IDT
- Part No.:
- TS272IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS272IDT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,901
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Product details
Overview
TS272IDT from STMicroelectronics is a dual CMOS operational amplifier optimized for single- or dual-supply operation in low-power industrial and embedded signal conditioning. It delivers 3.5 MHz gain-bandwidth product, rail-to-ground output swing, and 40° phase margin into 100 pF capacitive loads. Designed for sensor interfacing and precision analog front-ends where low supply current (1.5 mA per amplifier) and stable capacitive drive are required.
For engineers reviewing the TS272IDT datasheet, TS272IDT pinout, TS272IDT application, or TS272IDT equivalent, key selection criteria include input offset voltage (≤2 mV max over temperature), output sink capability (45 mA), common-mode range (0 V to VCC − 1.5 V), and SO-8 package compatibility with standard PCB layouts.
Technical Context
The TS272IDT employs ST's silicon-gate CMOS process to achieve high input impedance (>1012 Ω), ultra-low input bias current (≤300 pA), and minimal drift (2 µV/°C). Its two-stage architecture ensures stability with capacitive loads up to 100 pF without external compensation.
It operates from 3 V to 16 V supply, supports rail-to-ground output swing, and maintains ≥65 dB common-mode rejection across its full operating temperature range (−40°C to +125°C). The device is not unity-gain compensated for current-feedback topologies but is optimized for closed-loop gains ≥5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 3.5 MHz - sets maximum usable closed-loop bandwidth at gain = 10 (350 kHz) |
| Input Offset Voltage | ≤2 mV (max, −40°C to +125°C) - enables DC-coupled sensor amplification without trimming |
| Supply Current per Amplifier | 1.5 mA (typ.) - balances speed and power for battery-backed or thermally constrained systems |
| Output Sink Current | 45 mA - drives moderate capacitive loads and small-signal transducers directly |
| Common-Mode Input Range | 0 V to VCC − 1.5 V - allows ground-referenced input signals in single-supply configurations |
| Phase Margin | 40° (at unity gain, 100 pF load) - ensures stable step response without oscillation in typical buffer applications |
| Input Bias Current | ≤300 pA (max, −40°C to +125°C) - minimizes error in high-impedance source networks (e.g., pH electrodes) |
Pinout & Package
TS272IDT is supplied in an 8-pin SO (Small Outline) plastic micropackage (SO-8), compliant with JEDEC MS-012, with 1.27 mm pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Amplifier A output; capable of rail-to-ground swing and 45 mA sink |
| 2 | Inverting Input 1 | High-impedance node (≥1012 Ω); sensitive to leakage and layout parasitics |
| 3 | Non-inverting Input 1 | Same impedance as Pin 2; used for reference or sensor connection in non-inverting config |
| 4 | VCC− | Negative supply terminal; tied to ground in single-supply operation |
| 5 | Non-inverting Input 2 | Independent input for second amplifier; no internal coupling to Amp A |
| 6 | Inverting Input 2 | Independent input for second amplifier; matched offset and bias characteristics to Amp A |
| 7 | Output 2 | Amplifier B output; electrically identical to Pin 1, fully isolated channel |
| 8 | VCC+ | Positive supply terminal; supports 3–16 V operation; decoupling required near this pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Enables direct interface with ADCs and logic-level sensors without level-shifting circuitry |
| Stable with 100 pF capacitive load | Eliminates need for isolation resistors in driving long traces or piezoelectric transducers |
| Low input offset voltage drift | 2 µV/°C ensures <10 µV total drift over −40°C to +125°C - critical for uncalibrated field instruments |
| High CMRR (≥65 dB) | Maintains accuracy in noisy industrial environments with shared ground references |
| SO-8 tape-and-reel packaging | Supports automated SMT assembly and reduces handling damage versus DIP variants |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or strain gauges in factory-floor PLC modules. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier stage with matched gain and offset tracking. Use Value: Rail-to-ground output and 2 mV max offset enable 12-bit effective resolution without calibration across −40°C to +85°C. |
Use Scenario: Buffering and filtering analog inputs before SAR ADC sampling in portable test equipment. IC Role / Device Role / Timing Role: Anti-aliasing filter driver and ADC input buffer with low noise and fast settling. Use Value: 3.5 MHz GBW and 5.5 V/µs slew rate support ≤200 kHz anti-aliasing cutoff with <1 LSB error at 1 MSPS sampling. |
| Automotive Cabin Temperature Monitoring | Medical Patient Interface Circuitry |
|
Use Scenario: Signal conditioning for NTC thermistors in HVAC control units exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Precision voltage follower and gain stage operating from 5 V single supply. Use Value: −40°C to +125°C guaranteed operation and 300 pA max input bias prevent thermistor self-heating errors. |
Use Scenario: Isolating and amplifying biopotential signals (ECG, EMG) in low-power wearable monitors. IC Role / Device Role / Timing Role: First-stage differential amplifier with high input impedance and low noise floor. Use Value: 30 nV/√Hz input noise and 1012 Ω input resistance preserve microvolt-level signal integrity without guard traces. |
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 |
|---|---|---|---|
| TLV272IDR | Lower supply current (170 µA/amp), lower GBW (2.2 MHz), same SO-8 package | Better for ultra-low-power battery operation; insufficient for >100 kHz signal paths | Select when power budget <200 µA/amp dominates over bandwidth needs |
| LMV358IDR | Higher supply current (190 µA/amp), rail-to-rail output (not input), 1 MHz GBW | Superior output swing but limited common-mode range (VCC − 0.1 V min); unsuitable for ground-referenced inputs | Select only if full rail-to-rail I/O is mandatory and input common-mode includes ground |
Compared with TLV272IDR and LMV358IDR, TS272IDT uniquely combines 3.5 MHz bandwidth, true rail-to-ground output, and −40°C to +125°C operation - making it the only choice among the three for high-fidelity, wide-temperature industrial signal chains requiring both speed and single-supply simplicity.
Availability
TS272IDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin electronics, and medical patient monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS272IDT 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 analog, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The TS272 series belongs to ST's legacy high-performance CMOS op-amp product line, engineered specifically for cost-sensitive, thermally demanding applications where low input current, stable capacitive drive, and wide supply range are essential.
FAQ
Can TS272IDT operate from a 3.3 V supply?
Yes. TS272IDT is specified for 3 V to 16 V operation. At 3.3 V, it maintains rail-to-ground output swing, 1.5 mA supply current per amplifier, and 2.5 MHz gain-bandwidth product (per Figure 6). Input common-mode range extends from 0 V to 1.8 V, supporting direct interface with 3.3 V logic and sensors.
Does TS272IDT require external compensation for stability?
No. TS272IDT is internally compensated and remains stable with capacitive loads up to 100 pF, as verified by its 40° phase margin (Figure 8). No external compensation network is needed for unity-gain buffers or closed-loop gains ≥5, simplifying layout in space-constrained designs.
What is the maximum capacitive load TS272IDT can drive without oscillation?
TS272IDT is characterized for stable operation with up to 100 pF capacitive load at unity gain (Figure 8). Driving larger loads (e.g., >200 pF) may reduce phase margin below 30°, risking ringing or oscillation. For >100 pF, add a 10–100 Ω isolation resistor between output and load.
How does TS272IDT compare to TS27L2IDT in terms of power and performance?
TS272IDT draws 1.5 mA per amplifier and offers 3.5 MHz GBW; TS27L2IDT draws only 10 µA per amplifier but provides just 100 kHz GBW. TS272IDT is selected when speed and drive strength outweigh ultra-low-power requirements - e.g., active filters or fast-settling buffers where TS27L2IDT would be too slow.
TS272IDT 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:
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TS272IDT FAQ
1.How can I place an order for TS272IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS272IDT 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 TS272IDT reliable?
The price and inventory of TS272IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS272IDT is usually 5 days.
3.What payment methods are accepted for TS272IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS272IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS272IDT?
TS272IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS272IDT 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 TS272IDT?
For technical support, including TS272IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS272IDT requirements.
6.How does Aetrix verify that TS272IDT is sourced from the original manufacturer or authorized distributors?
All TS272IDT 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 TS272IDT meets industry standards.
7.What is the process for return or replacement of TS272IDT?
All TS272IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS272IDT, 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 TS272IDT part is unused and in its original packaging.
Return procedure for TS272IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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