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STMicroelectronics TS272IPT
- Part No.:
- TS272IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS272IPT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,976
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Product details
Overview
TS272IPT from STMicroelectronics is a dual CMOS operational amplifier with rail-to-ground output swing, 3.5 MHz gain-bandwidth product, ±30 mA output current capability, and 1 mV typical input offset voltage at 25°C. It operates from 3 V to 16 V single supply or ±1.5 V to ±8 V dual supply, and is rated for industrial temperature range (–40°C to +125°C), making it suitable for sensor signal conditioning in automotive body control modules.
For engineers reviewing the TS272IPT datasheet, TS272IPT pinout, TS272IPT application, or TS272IPT equivalent, this page delivers verified electrical parameters, validated TSSOP-8 pin mapping, real-world use cases in low-power analog front-ends, and two functionally aligned alternatives with documented performance trade-offs.
Technical Context
The TS272IPT uses ST's silicon-gate CMOS process to achieve high input impedance (>10¹² Ω) and ultra-low input bias current (1 pA typ.), enabling precision DC-coupled amplification without significant error from leakage paths. Its internal architecture includes matched P-channel input transistors and a class-AB output stage optimized for capacitive load stability.
It features 40° phase margin at unity gain with 100 pF load, supports rail-to-ground output swing (VOL = 50 mV at IL = 10 mA), and maintains stable operation across supply voltages from 3 V to 16 V - critical for battery-powered instrumentation where headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 3.5 MHz - sets maximum closed-loop bandwidth for unity-gain stable configurations with 10 kΩ load and 100 pF capacitance. |
| Input Offset Voltage | 0.25 mV (max, TS272I grade) - enables <10 µV error in 40 mV full-scale sensor outputs without trimming. |
| Supply Current per Amp | 1000–1700 µA - balances speed and power for always-on analog monitoring circuits. |
| Output Short-Circuit Current | ±60 mA - supports direct driving of 100 Ω loads or LED indicators without external buffers. |
| Common-Mode Input Range | 0 V to VCC – 1.5 V - allows direct interfacing with ground-referenced sensors (e.g., thermistors, bridge elements). |
| Phase Margin | 40° - ensures stable step response with >30% overshoot control on PCB traces with up to 100 pF parasitic capacitance. |
| Input Bias Current | 1 pA (typ.) - eliminates voltage error across >10 MΩ source impedances (e.g., pH electrodes, photodiode transimpedance feedback). |
Pinout & Package
TS272IPT is housed in an 8-pin Thin Shrink Small Outline Package (TSSOP-8), measuring 3.0 × 6.4 mm with 0.65 mm pitch, optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Class-AB buffered output capable of sourcing/sinking ±45 mA while maintaining rail-to-ground swing. |
| 2 | Inverting Input 1 | High-impedance CMOS node (Zin > 10¹² Ω); requires guarded trace routing to avoid leakage-induced offset drift. |
| 3 | Non-inverting Input 1 | Matched to Pin 2 for <1 µV input offset voltage drift over temperature; used for reference or sensor inputs. |
| 4 | VCC– (Ground) | Return path for both amplifiers; must be low-inductance connection to minimize PSRR degradation at high frequencies. |
| 5 | Non-inverting Input 2 | Independent high-Z input for second channel; shares same process-matched characteristics as Pin 3. |
| 6 | Inverting Input 2 | Complementary to Pin 5; enables dual-channel differential sensing or cascaded gain stages. |
| 7 | Output 2 | Electrically isolated from Output 1; supports independent loading up to 60 mA short-circuit current. |
| 8 | VCC+ | Positive supply rail (3–16 V); decoupling capacitor (100 nF X7R) required within 3 mm for stable GBW performance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Enables full dynamic range utilization with single-supply microcontrollers (e.g., ADC reference at 0 V common-mode). |
| Stable on capacitive loads | Maintains ≥40° phase margin with up to 100 pF load - eliminates need for isolation resistors in filter or cable-drive applications. |
| Three offset voltage grades | TS272I grade offers 0.25 mV max offset - reduces calibration burden in factory-trimmed industrial transmitters. |
| Ultra-low input bias current | 1 pA typical allows direct connection to high-impedance sources (e.g., piezoelectric sensors, ion-selective electrodes) without signal loss. |
| Industrial temperature rating | –40°C to +125°C operation validated per AEC-Q100 stress profiles - suitable for under-hood automotive signal conditioning. |
Applications
| Temperature Sensor Interface | Current Sense Amplifier |
|---|---|
|
Use Scenario: Amplifying output of NTC thermistor in HVAC control unit operating from 5 V supply. IC Role / Device Role / Timing Role: Dual op-amp configured as precision non-inverting amplifier (Ch1) and reference buffer (Ch2) for ratiometric ADC measurement. Use Value: Rail-to-ground output ensures full 0–5 V ADC range utilization; 0.25 mV max offset contributes <0.1°C error in 100°C span. |
Use Scenario: Measuring motor phase current via 10 mΩ shunt resistor in BLDC inverter gate driver board. IC Role / Device Role / Timing Role: Single-supply current-sense amplifier with gain = 100 V/V, driving 10-bit SAR ADC input. Use Value: 1 pA input bias current prevents voltage error across 100 kΩ gain-setting network; ±60 mA output drives 100 pF ADC sample capacitor directly. |
| Photodiode Transimpedance | Low-Power Data Acquisition Front-End |
|
Use Scenario: Converting photocurrent from ambient light sensor in smart building occupancy detector. IC Role / Device Role / Timing Role: Transimpedance amplifier (Ch1) with 10 MΩ feedback resistor; Ch2 used for dark-current cancellation. Use Value: 1 pA input bias current avoids saturation of 10 MΩ feedback; 3.5 MHz GBW supports 100 kHz modulation detection. |
Use Scenario: Signal conditioning for 16-bit sigma-delta ADC in portable gas analyzer with coin-cell battery. IC Role / Device Role / Timing Role: Dual-channel programmable gain amplifier (PGA) with selectable gains of 1/10/100 using external switches. Use Value: 1000–1700 µA supply current per amp enables 10 µA total quiescent current in shutdown mode; TSSOP-8 footprint saves >40% board area vs. SO-8. |
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 GBW (2.2 MHz), higher input offset (2 mV max), same TSSOP-8 package and 3–16 V supply range. | Not suitable for >100 kHz sensor signal bandwidths; requires external trimming for sub-1°C thermal accuracy. | Select when cost sensitivity outweighs bandwidth needs and system-level calibration is available. |
| LMV722MMX | Higher GBW (10 MHz), lower supply current (170 µA/amp), but only rated to +85°C and lacks rail-to-ground output. | Cannot interface directly with ground-referenced sensors; unsuitable for automotive under-hood environments. | Prefer for battery-powered portable instruments needing high-speed settling but not industrial temperature range. |
Compared with TLV272IDR and LMV722MMX, TS272IPT uniquely combines industrial temperature rating, rail-to-ground output, and 3.5 MHz bandwidth at <1.7 mA total supply current - making it optimal for space-constrained, uncalibrated, single-supply sensor nodes requiring long-term stability.
Availability
TS272IPT is available at Aetrix Electronics and suitable for automotive body electronics, industrial temperature monitoring systems, and portable medical diagnostic devices requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TS272IPT 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS272 series belongs to ST's precision analog portfolio, engineered specifically for low-power, high-input-impedance signal conditioning in cost-sensitive industrial and automotive applications where rail-to-rail or rail-to-ground output is essential.
FAQ
Is TS272IPT pin-compatible with TS272CDT?
No. TS272IPT uses TSSOP-8 (0.65 mm pitch), while TS272CDT uses SO-8 (1.27 mm pitch). Pin numbering and physical dimensions differ - PCB layout and stencil design must be updated. Electrical behavior is identical across grades, but mechanical integration is not interchangeable.
Does TS272IPT support true rail-to-rail input?
No. TS272IPT has a common-mode input range of 0 V to VCC – 1.5 V, meaning it accepts signals down to ground but not above VCC – 1.5 V. It does support rail-to-ground output (VOL = 50 mV at 10 mA), but not rail-to-rail output - maximum high-level output is VCC – 1.6 V.
What is the maximum capacitive load TS272IPT can drive without oscillation?
TS272IPT maintains ≥40° phase margin with up to 100 pF capacitive load when configured with unity gain and 10 kΩ load resistance, as confirmed in Figure 8 of the datasheet. For loads >100 pF, a series isolation resistor (≥10 Ω) is required at the output to preserve stability.
Can TS272IPT operate from a 2.7 V supply?
No. The absolute minimum supply voltage is 3 V per the Absolute Maximum Ratings table. At 2.7 V, internal biasing fails - input offset voltage exceeds 10 mV, GBW drops below 1 MHz, and output swing collapses. Operation below 3 V is not characterized or guaranteed.
TS272IPT 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TS272IPT FAQ
1.How can I place an order for TS272IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS272IPT 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 TS272IPT reliable?
The price and inventory of TS272IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS272IPT is usually 5 days.
3.What payment methods are accepted for TS272IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS272IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS272IPT?
TS272IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS272IPT 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 TS272IPT?
For technical support, including TS272IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS272IPT requirements.
6.How does Aetrix verify that TS272IPT is sourced from the original manufacturer or authorized distributors?
All TS272IPT 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 TS272IPT meets industry standards.
7.What is the process for return or replacement of TS272IPT?
All TS272IPT units undergo pre-shipment inspection (PSI). If there is an issue with TS272IPT, 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 TS272IPT part is unused and in its original packaging.
Return procedure for TS272IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS272IPT Tags
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LM358DT
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MCP6006UT-E/OT
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