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STMicroelectronics TS27L4IPT
- Part No.:
- TS27L4IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS27L4IPT.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,823
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Product details
Overview
TS27L4IPT from STMicroelectronics is a very low power precision CMOS quad operational amplifier with 10 µA/op supply current, ±18 V absolute maximum supply voltage, and 0.04 V/µs slew rate, designed for single-supply sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the TS27L4IPT datasheet, TS27L4IPT pinout, TS27L4IPT application, or TS27L4IPT equivalent, key selection criteria include input offset voltage (max 12 mV), rail-to-ground output swing, unity-gain stability with capacitive loads, and TSSOP-14 package compatibility with space-constrained PCB layouts.
Technical Context
The TS27L4IPT integrates four independent CMOS op-amps on a single die using ST's silicon gate process, delivering high input impedance (>10¹² Ω) and ultra-low input bias current (1–300 pA). Its internal architecture features a two-stage transconductance amplifier with current-source-loaded second stage and class-AB output stage.
It operates over -40°C to +125°C with supply voltage range 3–16 V, supports rail-to-ground output swing, and maintains ≥45° phase margin up to 100 pF capacitive load-enabling direct driving of ADC reference buffers and piezoelectric sensor interfaces without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current per op-amp | 10 µA typ - enables multi-year operation from coin-cell batteries in portable sensors |
| Input offset voltage | 12 mV max - sets DC accuracy limit for 12-bit sensor front-ends at room temperature |
| Slew rate | 0.04 V/µs - supports <1 kHz small-signal bandwidth in unity-gain configuration |
| Gain bandwidth product | 0.1 MHz - defines open-loop gain roll-off for stable closed-loop gain ≤100 |
| Common-mode rejection | 65 dB min - rejects power-supply ripple and shared-noise coupling in single-supply systems |
| Output voltage swing | 0 V to VCC−1.5 V - allows ground-referenced signal acquisition without negative rail |
| ESD HBM rating | 1 kV - meets basic handling robustness for non-automotive assembly environments |
Pinout & Package
TSSOP-14 (Thin Shrink Small Outline Package), 5.0 mm × 6.4 mm body, 0.65 mm pitch, thermally enhanced with exposed pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Op-Amp 1) | High-impedance node accepting differential signal; requires guarded trace routing |
| 2 | Non-inverting input (Op-Amp 1) | Accepts reference or sensor signal; bias current <300 pA minimizes resistor-induced offset |
| 3 | Output (Op-Amp 1) | Class-AB output capable of sourcing 45 mA or sinking 60 mA into resistive loads |
| 4 | Ground (VCC−) | Reference return for all four amplifiers; must connect to low-impedance PCB plane |
| 5 | Inverting input (Op-Amp 2) | Independent input channel; shares no internal nodes with Op-Amp 1 |
| 6 | Non-inverting input (Op-Amp 2) | Electrically isolated from other inputs; channel separation >120 dB at 1 kHz |
| 7 | Output (Op-Amp 2) | Drives separate load; thermal coupling between channels limits simultaneous full-output operation |
| 8 | VCC+ (Supply) | Single positive rail input; accepts 3–16 V; decoupling capacitor required within 5 mm |
| 9 | Inverting input (Op-Amp 3) | Third independent amplifier input; identical electrical specs to Pins 1 and 5 |
| 10 | Non-inverting input (Op-Amp 3) | Supports high-side current sensing when used with matched external resistors |
| 11 | Output (Op-Amp 3) | Capable of driving 100 pF directly due to ≥45° phase margin at unity gain |
| 12 | Inverting input (Op-Amp 4) | Fourth channel input; layout symmetry recommended to match parasitic capacitance |
| 13 | Non-inverting input (Op-Amp 4) | Enables differential-to-single-ended conversion with matched feedback network |
| 14 | Output (Op-Amp 4) | Final output stage; output short-circuit current limited to 60 mA internally |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Enables true-zero-volt signal acquisition in single-supply systems without level-shifting circuitry |
| Unity-gain stable with capacitive loads | Eliminates need for external compensation components when driving ADC input capacitors or long cables |
| 10 µA/op quiescent current | Reduces total system power by >90% versus bipolar quad op-amps in always-on monitoring nodes |
| Low input current drift vs. temperature | Stabilizes offset error across industrial temperature range, critical for unattended field sensors |
| 120 dB channel separation | Prevents crosstalk between simultaneously active amplifiers in multi-channel data loggers |
Applications
| Portable Gas Sensor Front-End | Medical ECG Lead Amplifier |
|---|---|
Use Scenario: Amplifying microvolt-level electrochemical signals from metal-oxide gas sensors powered by CR2032 batteries. IC Role / Device Role / Timing Role: Quad op-amp configured as transimpedance amplifier, filter stage, reference buffer, and level shifter. Use Value: 10 µA/op current draw extends battery life beyond 3 years; rail-to-ground output enables direct connection to 12-bit SAR ADC. | Use Scenario: Conditioning biopotential signals from Ag/AgCl electrodes in handheld ECG devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer and right-leg drive circuit. Use Value: Input bias current <300 pA prevents electrode polarization; 120 dB channel separation avoids lead-wire crosstalk. |
| Industrial Temperature Transmitter | Smart Flow Meter Signal Chain |
Use Scenario: Converting RTD resistance changes to 4–20 mA loop signals in hazardous-area transmitters. IC Role / Device Role / Timing Role: Precision current source control amplifier and cold-junction compensation buffer. Use Value: −40°C to +125°C operating range ensures reliability in outdoor enclosures; 12 mV max Vio meets Class A RTD accuracy requirements. | Use Scenario: Amplifying low-amplitude pulses from turbine flow sensors in water utility metering systems. IC Role / Device Role / Timing Role: AC-coupled pulse amplifier and comparator hysteresis generator. Use Value: Unity-gain stability allows direct connection to 100 pF piezoelectric sensor capacitance; 0.04 V/µs SR preserves pulse edge integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher supply current (220 µA/op), higher GBW (6.4 MHz), rail-to-rail I/O | Better for higher-frequency sensor interfaces but incompatible with ultra-low-power battery designs | Select when bandwidth >100 kHz or rail-to-rail input is required; avoid if <15 µA/op is mandatory |
| LMV324IPWR | Lower cost, 100 µA/op, 1 MHz GBW, no guaranteed phase margin >45° with 100 pF loads | Suitable for general-purpose amplification but not for direct capacitive-load driving | Choose for cost-sensitive consumer applications where load capacitance is <30 pF and temperature range is 0–70°C |
Compared with TLV2464IDR and LMV324IPWR, TS27L4IPT uniquely balances sub-15 µA quiescent current, guaranteed capacitive-load stability, and extended industrial temperature range-making it irreplaceable in long-life, space-constrained, single-supply sensor nodes.
Availability
TS27L4IPT is available at Aetrix Electronics and suitable for portable medical monitors, industrial temperature transmitters, smart utility meters, and battery-powered environmental sensors requiring stable component supply across extended temperature ranges.
Supply support for TS27L4IPT 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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS27L4 series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power signal conditioning in battery-operated measurement systems where longevity and DC accuracy outweigh speed requirements.
FAQ
What is the maximum allowable supply voltage for TS27L4IPT?
The absolute maximum supply voltage is 18 V, but the recommended operating range is 3–16 V. Exceeding 16 V risks exceeding the specified electrical characteristics and may accelerate parametric drift over temperature and time. Operation at 18 V is only permitted under transient conditions per Table 1 of the datasheet.
Does TS27L4IPT support dual-supply operation?
Yes-TS27L4IPT operates with dual supplies (e.g., ±5 V or ±8 V) as well as single supplies. When used in dual-supply mode, the common-mode input voltage range extends from −0.3 V to VCC+ − 1.5 V, and output swing remains symmetric about ground. Pin 4 is connected to the negative rail, not ground.
Can TS27L4IPT drive a 10 nF capacitive load?
No-TS27L4IPT is unity-gain stable up to 100 pF, as confirmed in Figure 12 of the datasheet. Driving 10 nF would cause severe peaking and potential oscillation. For larger capacitive loads, an external isolation resistor (≥100 Ω) must be placed between the output and the capacitor, or a dedicated buffer op-amp should be used.
Is the TSSOP-14 package of TS27L4IPT RoHS-compliant?
Yes-the TS27L4IPT uses ST's ECOPACK®-compliant TSSOP-14 package, meeting RoHS Directive 2011/65/EU and REACH SVHC requirements. The device is halogen-free and qualifies for lead-free reflow soldering per JEDEC J-STD-020, with peak temperature tolerance up to 260°C.
TS27L4IPT 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:
- 0.04V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 10µA (x4 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:
- 14-TSSOP
TS27L4IPT FAQ
1.How can I place an order for TS27L4IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS27L4IPT 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 TS27L4IPT reliable?
The price and inventory of TS27L4IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27L4IPT is usually 5 days.
3.What payment methods are accepted for TS27L4IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27L4IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS27L4IPT?
TS27L4IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS27L4IPT 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 TS27L4IPT?
For technical support, including TS27L4IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27L4IPT requirements.
6.How does Aetrix verify that TS27L4IPT is sourced from the original manufacturer or authorized distributors?
All TS27L4IPT 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 TS27L4IPT meets industry standards.
7.What is the process for return or replacement of TS27L4IPT?
All TS27L4IPT units undergo pre-shipment inspection (PSI). If there is an issue with TS27L4IPT, 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 TS27L4IPT part is unused and in its original packaging.
Return procedure for TS27L4IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS27L4IPT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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