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STMicroelectronics TS272BIDT
- Part No.:
- TS272BIDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS272BIDT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,461
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Product details
Overview
TS272BIDT from STMicroelectronics is a dual CMOS operational amplifier in SO-8 package, rated for -40°C to +125°C operation, featuring 3.5 MHz gain-bandwidth product, 5.5 V/µs slew rate, and rail-to-ground output swing. It delivers low input bias current (1 pA typ), 0.25 mV max input offset voltage (TS272B grade), and stable operation into capacitive loads - ideal for precision sensor signal conditioning in automotive engine control modules.
For engineers reviewing the TS272BIDT datasheet, TS272BIDT pinout, TS272BIDT application, or TS272BIDT equivalent, key selection criteria include its guaranteed 0.25 mV input offset voltage (B-grade), 1 mA per amplifier supply current, rail-to-ground output capability, and industrial temperature range - critical for analog front-end designs requiring accuracy and thermal robustness.
Technical Context
The TS272BIDT uses ST's silicon-gate CMOS process to achieve ultra-low input bias current (≤1 pA) and minimal drift (2 µV/°C), outperforming JFET amplifiers in temperature-stable bias performance. Its two-stage architecture provides 40° phase margin at unity gain with 100 pF load, enabling direct driving of ADC input capacitors without external isolation.
It operates from single-supply 3–16 V or split supplies, with common-mode input range extending to VCC − 1.5 V and output swing to ground. The dual amplifier structure shares no internal coupling, delivering 120 dB channel separation - essential for simultaneous differential and reference signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 3.5 MHz - supports closed-loop bandwidth up to ~350 kHz at gain = 10, suitable for anti-aliasing filters before 1 MSPS ADCs |
| Input Offset Voltage (max) | 0.25 mV - enables ≤0.5% error in 50 mV full-scale sensor outputs without trimming |
| Slew Rate | 5.5 V/µs - allows clean 10 kHz sine wave reproduction at 10 VPP without distortion |
| Supply Current (per amp) | 1.6 mA max - enables dual-channel precision amplification within 3.3 V microcontroller system power budgets |
| Common-Mode Range | 0 V to VCC − 1.5 V - accepts 0–3.3 V sensor outputs directly on 5 V supply without level-shifting |
| Output Swing | Rail-to-ground (0 V) - preserves dynamic range when interfacing with single-supply ADCs referencing ground |
| Phase Margin | 40° - ensures stable step response into 100 pF capacitive loads typical of PCB traces and ADC inputs |
Pinout & Package
TS272BIDT is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, 3.9 mm width, 1.75 mm height, with 1.27 mm pitch and gull-wing leads. RoHS-compliant, tape-and-reel packaged (DT suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Amplifier A output; capable of sinking 45 mA and sourcing 60 mA into resistive loads |
| 2 | Inverting Input 1 | High-impedance node (≥1012 Ω); sensitive to layout-induced leakage; requires guard ring in high-Z applications |
| 3 | Non-inverting Input 1 | Matches Pin 2 impedance; used for unity-gain buffer or non-inverting gain stages |
| 4 | VCC− (Ground) | Power return for both amplifiers; must be low-impedance connection to minimize crosstalk |
| 5 | Non-inverting Input 2 | Independent input for second amplifier; electrically isolated from Amp A except via shared supply rails |
| 6 | Inverting Input 2 | Same electrical characteristics as Pin 2; supports matched dual-channel configurations |
| 7 | Output 2 | Amplifier B output; identical drive strength and noise performance to Pin 1 |
| 8 | VCC+ | Positive supply rail; decoupling capacitor (100 nF ceramic) required within 5 mm for stability |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output | Enables full utilization of 0–VCC ADC input range without negative supply or level-shifting circuitry |
| 0.25 mV max input offset (B-grade) | Reduces need for factory calibration in production test; supports <1 LSB error in 12-bit systems with 5 V reference |
| 1 pA typical input bias current | Permits use with >10 MΩ source impedances (e.g., pH electrodes, piezoelectric sensors) without significant DC error |
| Stable into 100 pF capacitive load | Eliminates need for external isolation resistor when driving SAR ADC sample capacitors directly |
| −40°C to +125°C operating range | Qualified for under-hood automotive applications and industrial motor control environments without derating |
Applications
| Automotive Engine Coolant Sensor Interface | Industrial Thermocouple Cold-Junction Compensation |
|---|---|
|
Use Scenario: Amplifying low-level resistance changes from NTC thermistors embedded in coolant passages, operating continuously at 125°C ambient. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one amp buffers reference voltage, the other amplifies sensor voltage with gain = 10. Use Value: Rail-to-ground output ensures full 0–5 V span into MCU ADC; 0.25 mV offset limits temperature error to <0.3°C over full range. |
Use Scenario: Compensating for cold-junction drift in K-type thermocouples mounted on furnace control boards exposed to 105°C board temperatures. IC Role / Device Role / Timing Role: Precision voltage follower for RTD reference and difference amplifier for thermocouple output. Use Value: 1 pA input bias prevents self-heating errors in 1 kΩ RTD bridges; 120 dB channel separation avoids crosstalk between reference and signal paths. |
| Medical Patient Temperature Probe Signal Chain | Smart Energy Meter Current Sensing Front-End |
|
Use Scenario: Conditioning signals from platinum RTD probes (PT100/PT1000) in portable clinical thermometers with battery life targets >100 hours. IC Role / Device Role / Timing Role: Low-power instrumentation amplifier core: dual op-amps configured as 3-op-amp IA with gain = 100. Use Value: 1.6 mA total supply current enables continuous measurement mode; 2 µV/°C offset drift maintains ±0.1°C accuracy across 0–50°C ambient. |
Use Scenario: Amplifying mV-level shunt voltage in Class 0.5 electricity meters operating 24/7 in utility cabinets at 70°C ambient. IC Role / Device Role / Timing Role: Dual gain stage: first amp provides 10× gain and filtering, second performs level-shifting to match ADC input range. Use Value: Guaranteed 0.25 mV offset ensures <0.05% gain error contribution; 40° phase margin prevents oscillation during transient load switching events. |
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 GBP (2.2 MHz), higher offset (1.5 mV max), same SO-8 package and temp range | Less suitable for high-frequency sensor filtering; requires calibration for sub-1°C thermal accuracy | Select when cost sensitivity outweighs precision requirements and bandwidth needs are ≤200 kHz |
| LMV722MMX | Higher supply current (1.25 mA/amp), lower offset (0.2 mV max), but only rated to +85°C | Not qualified for automotive under-hood or extended industrial temperature use | Select only for commercial-temperature consumer electronics where 0.2 mV offset is mandatory and thermal range is limited |
Compared with TLV272IDR and LMV722MMX, TS272BIDT uniquely combines B-grade precision (0.25 mV), 125°C rating, and 3.5 MHz bandwidth in a single SO-8 part - making it the only choice for high-accuracy, high-temperature, medium-bandwidth dual op-amp applications without trade-offs.
Availability
TS272BIDT is available at Aetrix Electronics and suitable for automotive engine control units, industrial temperature monitoring systems, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS272BIDT 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 microcontrollers, analog ICs, power devices, and MEMS sensors for automotive, industrial, and consumer markets.
The TS272 series belongs to ST's precision analog portfolio, engineered specifically for low-power, high-accuracy signal conditioning in harsh-temperature environments - emphasizing offset stability, input impedance, and capacitive-load drive capability.
FAQ
What is the maximum capacitive load the TS272BIDT can drive without compensation?
The TS272BIDT maintains 40° phase margin and stable unity-gain operation with up to 100 pF capacitive load, as verified in Figure 8 of the official datasheet. Driving larger loads (e.g., >200 pF) requires a series isolation resistor (typically 10–100 Ω) between output and capacitance to prevent peaking or oscillation.
Does the TS272BIDT support single-supply operation down to 3 V?
Yes - the TS272BIDT is fully specified for single-supply operation from 3 V to 16 V. At 3 V, it retains rail-to-ground output swing, 1.5 V common-mode input range (0 V to 1.5 V), and 1.2 MHz gain-bandwidth product, enabling use in battery-powered 3.3 V systems with minimal performance loss.
How does the TS272B grade differ from TS272C or TS272I grades?
The TS272B grade guarantees maximum input offset voltage of 0.25 mV (vs. 1.1 mV for C/I grades) and is qualified for −40°C to +125°C operation. TS272C is commercial-grade (0°C to +70°C), while TS272I is industrial-grade (−40°C to +125°C) but with looser offset tolerance - making B-grade the only option for high-precision, high-temp dual op-amp needs.
Can TS272BIDT replace TS272CDT in existing designs?
Yes, TS272BIDT is pin-compatible and functionally superior to TS272CDT: it offers tighter offset (0.25 mV vs. 1.1 mV), wider temperature range (−40°C to +125°C vs. 0°C to +70°C), and identical SO-8 footprint. No layout or schematic changes are needed - only validation of system-level offset and thermal performance margins.
TS272BIDT 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:
- 250 µV
- 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
TS272BIDT FAQ
1.How can I place an order for TS272BIDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS272BIDT 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 TS272BIDT reliable?
The price and inventory of TS272BIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS272BIDT is usually 5 days.
3.What payment methods are accepted for TS272BIDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS272BIDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS272BIDT?
TS272BIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS272BIDT 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 TS272BIDT?
For technical support, including TS272BIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS272BIDT requirements.
6.How does Aetrix verify that TS272BIDT is sourced from the original manufacturer or authorized distributors?
All TS272BIDT 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 TS272BIDT meets industry standards.
7.What is the process for return or replacement of TS272BIDT?
All TS272BIDT units undergo pre-shipment inspection (PSI). If there is an issue with TS272BIDT, 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 TS272BIDT part is unused and in its original packaging.
Return procedure for TS272BIDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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