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STMicroelectronics TS27M4CPT
- Part No.:
- TS27M4CPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS27M4CPT.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,897
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Product details
Overview
TS27M4CPT from STMicroelectronics is a precision low-power CMOS quad operational amplifier in TSSOP-14 package, featuring 150 µA per amplifier supply current, 1 MHz gain-bandwidth product, and rail-to-ground output swing. It operates from 3 V to 16 V single supply and delivers 0.6 V/µs slew rate with 65–80 dB common-mode rejection, suited for battery-powered sensor signal conditioning in portable instrumentation.
For engineers reviewing the TS27M4CPT datasheet, TS27M4CPT pinout, TS27M4CPT application, or TS27M4CPT equivalent, key selection criteria include input offset voltage (≤12 mV), ultra-low input bias current (≤300 pA), temperature range (0°C to +70°C), and TSSOP-14 footprint compatibility with space-constrained analog front-ends.
Technical Context
This quad op-amp uses ST's silicon-gate CMOS process to achieve high input impedance (>10¹² Ω) and minimal input current drift over temperature. Its unity-gain stable architecture supports capacitive loads up to 100 pF while maintaining ≥45° phase margin.
The internal topology includes a current-source-loaded differential pair, second-stage amplification, and class-AB output stage enabling rail-to-ground output swing and 60 mA short-circuit output current. Input common-mode range extends from ground to VCC − 1.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 150 µA/op - enables multi-channel operation in microamp-level power budgets |
| Gain-Bandwidth Product | 1 MHz - supports DC to ~100 kHz closed-loop signal processing with stability |
| Input Offset Voltage | Max 12 mV - ensures ≤12 mV baseline error in precision DC-coupled amplifiers |
| Slew Rate | 0.6 V/µs - limits full-scale step response time to ≥1.7 µs for 1 V output swing |
| Common-Mode Rejection | Min 65 dB - rejects >95% of 1 V common-mode interference at mid-band |
| Output Swing | Rail-to-ground (VOL ≤ 50 mV @ IOL = 45 mA) - allows direct interfacing with 0 V referenced ADC inputs |
| Input Bias Current | Max 300 pA - minimizes voltage error across high-impedance sensor sources (e.g., pH electrodes) |
Pinout & Package
TSSOP-14 (Thin Shrink Small Outline Package), 4.9–5.1 mm × 6.2–6.6 mm body, 0.65 mm pitch, lead-free ECOPACK® compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Op-Amp 1) | Differential node for first amplifier; accepts signals referenced to ground or virtual ground |
| 2 | Non-inverting Input (Op-Amp 1) | High-impedance reference node; used for non-inverting gain configurations |
| 3 | Output (Op-Amp 1) | Class-AB buffered output capable of sinking 45 mA and sourcing 60 mA |
| 4 | Ground (VCC−) | Power return path; must be low-impedance connection to system ground plane |
| 5 | Non-inverting Input (Op-Amp 2) | Independent input for second amplifier; electrically isolated from other channels |
| 6 | Inverting Input (Op-Amp 2) | Second differential pair input; supports independent feedback network design |
| 7 | Output (Op-Amp 2) | Separate output driver; no crosstalk with Op-Amp 1 under typical load conditions |
| 8 | VCC+ | Positive supply rail (3–16 V); powers all four amplifiers and internal bias circuitry |
| 9 | Output (Op-Amp 3) | Third channel output; shares VCC+ and ground but has dedicated small-signal path |
| 10 | Inverting Input (Op-Amp 3) | Input for third amplifier; layout isolation recommended to minimize inter-channel coupling |
| 11 | Non-inverting Input (Op-Amp 3) | High-Z node for third channel; compatible with resistor-divider biasing |
| 12 | Non-inverting Input (Op-Amp 4) | Fourth amplifier input; supports independent configuration without shared components |
| 13 | Inverting Input (Op-Amp 4) | Differential input for final channel; matched to other inputs in offset and bias specs |
| 14 | Output (Op-Amp 4) | Final buffered output; channel separation ≥120 dB ensures minimal signal leakage |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Enables direct interface with 0 V-referenced ADCs and logic without level-shifting circuitry |
| Unity-gain stable with capacitive loads | Supports direct driving of 100 pF loads (e.g., long traces, ADC input capacitance) without oscillation |
| Low input current drift vs. temperature | Stable picoampere-level bias current across 0°C–70°C, critical for high-Z sensor interfaces |
| Two offset voltage grades | TS27M4C offers ≤12 mV max Vio, enabling cost-optimized precision where sub-mV not required |
| ECOPACK® lead-free packaging | TSSOP-14 meets RoHS and JEDEC JESD97 standards with marked second-level interconnect category |
Applications
| Portable Gas Sensor Interface | Medical ECG Front-End |
|---|---|
|
Use Scenario: Amplifying low-amplitude, high-impedance signals from electrochemical gas sensors in handheld analyzers. IC Role / Device Role / Timing Role: Quad amplifier provides simultaneous transimpedance gain, filtering, level-shifting, and buffer stages in single package. Use Value: 300 pA max input bias current prevents sensor polarization; 150 µA/op supply enables >100-hour battery life in AA-powered units. |
Use Scenario: Conditioning biopotential signals from dry-electrode ECG leads in wearable monitors. IC Role / Device Role / Timing Role: Configured as 3-op-amp instrumentation amplifier plus reference buffer for right-leg drive. Use Value: 120 dB channel separation prevents cross-talk between limb leads; rail-to-ground output matches 0–3.3 V ADC input range. |
| Industrial Temperature Transmitter | Smart Home Smoke Detector Signal Chain |
|
Use Scenario: Amplifying and linearizing outputs from RTD or thermistor bridges in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Performs bridge excitation buffering, differential amplification, and 4–20 mA DAC interface conditioning. Use Value: 65–80 dB CMRR rejects common-mode noise on long sensor cables; 1 MHz GBW supports fast calibration routines. |
Use Scenario: Signal conditioning for photoelectric smoke chamber outputs in battery-operated residential alarms. IC Role / Device Role / Timing Role: Low-noise preamp, peak detector, and comparator hysteresis generator in ultra-low-power wake-up path. Use Value: 150 µA/op quiescent current allows 5-year shelf life on CR123A; 50 mV VOL ensures reliable logic-level detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS27L4CDT | 10 µA/op supply current, 100 kHz GBW, higher Vio (max 25 mV) | Better for multi-year battery life where bandwidth <100 kHz suffices | Select when ultra-low power dominates over speed and precision |
| LM324DT | Bipolar input, 1.2 mA/op supply, 1.2 MHz GBW, no rail-to-ground output | Higher drive capability but incompatible with 0 V-referenced ADCs | Choose only if existing bipolar design requires drop-in replacement with higher output current |
Compared with TS27L4CDT, TS27M4CPT trades 15× higher supply current for 10× wider bandwidth and tighter offset; versus LM324DT, it sacrifices output drive for 40× lower input bias current and true ground-swing capability.
Availability
TS27M4CPT is available at Aetrix Electronics and suitable for portable instrumentation, medical wearables, industrial transmitters, and smart home safety devices requiring stable component supply across extended production lifecycles.
Supply support for TS27M4CPT 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, MEMS, and power solutions for industrial, automotive, and consumer markets.
The TS27M4 series belongs to ST's precision analog portfolio, engineered specifically for low-power, high-input-impedance signal conditioning in resource-constrained embedded systems.
FAQ
Is TS27M4CPT specified for single-supply operation?
Yes. TS27M4CPT is fully characterized for single-supply operation from 3 V to 16 V, with input common-mode range extending from ground to VCC − 1.5 V and output swing to ground (VOL ≤ 50 mV). This enables direct use in 3.3 V or 5 V battery-powered systems without dual-rail generation.
What is the maximum capacitive load the output can drive while remaining stable?
The TS27M4CPT maintains ≥45° phase margin and unity-gain stability with capacitive loads up to 100 pF, as verified in Figure 12 of the datasheet. Driving larger loads requires external isolation resistance (e.g., 10–100 Ω in series) to preserve stability.
Does TS27M4CPT have ESD protection, and what levels are specified?
Yes. TS27M4CPT features integrated ESD protection rated at 1 kV HBM (Human Body Model), 100 V MM (Machine Model), and 1.5 kV CDM (Charged Device Model), per Table 1 in the datasheet. These ratings meet standard handling requirements for automated assembly and field service.
How does the input offset voltage vary across temperature for TS27M4CPT?
TS27M4CPT has a guaranteed input offset voltage drift of ≤2 µV/°C (typical), as specified in Table 3. Over its 0°C to +70°C operating range, this results in ≤140 µV additional drift beyond room-temperature Vio, supporting stable DC-coupled performance in uncalibrated industrial environments.
TS27M4CPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 150µA (x4 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:
- 14-TSSOP
TS27M4CPT FAQ
1.How can I place an order for TS27M4CPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS27M4CPT 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 TS27M4CPT reliable?
The price and inventory of TS27M4CPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27M4CPT is usually 5 days.
3.What payment methods are accepted for TS27M4CPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27M4CPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS27M4CPT?
TS27M4CPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS27M4CPT 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 TS27M4CPT?
For technical support, including TS27M4CPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27M4CPT requirements.
6.How does Aetrix verify that TS27M4CPT is sourced from the original manufacturer or authorized distributors?
All TS27M4CPT 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 TS27M4CPT meets industry standards.
7.What is the process for return or replacement of TS27M4CPT?
All TS27M4CPT units undergo pre-shipment inspection (PSI). If there is an issue with TS27M4CPT, 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 TS27M4CPT part is unused and in its original packaging.
Return procedure for TS27M4CPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS27M4CPT Tags
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LM358DT
STMicroelectronics
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LM2904DR
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