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Texas Instruments TLC27L9IDR
- Part No.:
- TLC27L9IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L9IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,568
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Product details
Overview
TLC27L9IDR from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for ultra-low-power, single-supply sensor signal conditioning. It delivers 1 mV max input offset voltage (25°C), 0.03 V/µs slew rate at 5 V, and 10¹² Ω input impedance - enabling high-accuracy analog front-ends in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L9IDR datasheet, TLC27L9IDR pinout, TLC27L9IDR application, or TLC27L9IDR equivalent, this page provides verified specifications, SOIC-14 package details, real-world use cases in industrial sensing, and two validated alternative op amps with documented functional and parametric differences.
Technical Context
The TLC27L9IDR implements a silicon-gate LinCMOS™ architecture that achieves exceptional DC precision (1 mV VIO max) while maintaining ultra-low quiescent current (68 µA typ. at 5 V, 25°C). Its rail-to-rail output swing and common-mode input range extending below GND support true single-supply operation down to 4 V over –40°C to +85°C.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), latch-up immunity, and stable unity-gain performance (34° phase margin at 5 V, 25°C). The device avoids bipolar power penalties while delivering key precision attributes: <1 µV/°C offset drift, 85 kHz unity-gain bandwidth, and 70 nV/√Hz input noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 1000 µV at 25°C - enables sub-millivolt DC accuracy in low-level sensor amplification without trimming. |
| Supply Current (typ.) | 68 µA at 5 V, 25°C - supports multi-year battery life in remote, low-duty-cycle field transmitters. |
| Input Impedance | 10¹² Ω typical - minimizes loading error on high-impedance sources like thermistors and piezoelectric sensors. |
| Common-Mode Input Range | Extends to –0.2 V (below GND) at 5 V - allows direct interfacing with ground-referenced transducer outputs. |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD at 5 V - delivers usable dynamic range in 3.3 V or 5 V single-supply systems. |
| Unity-Gain Bandwidth | 85 kHz at 5 V, 25°C - sufficient for anti-aliasing, low-frequency filtering, and slow-scan sensor readouts. |
| ESD Rating | 2000 V HBM - meets industrial handling requirements without external protection circuitry. |
Pinout & Package
Package: SOIC-14 (D package), surface-mount, 8.65 mm × 3.91 mm footprint, 1.75 mm height, standard JEDEC MS-012AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (per channel) | High-impedance node accepting sensor signals; supports common-mode voltages down to –0.2 V. |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (per channel) | Used for feedback configuration; matched bias current minimizes offset contribution in closed-loop designs. |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (per channel) | Rail-to-rail capable; drives 1 MΩ loads with ≤50 mV headroom to GND and VDD. |
| VDD | Positive supply | Accepts 4 V to 16 V; supply rejection >70 dB ensures stable gain under noisy rail conditions. |
| GND | Ground / negative supply | Reference for all inputs and outputs; common return for four independent amplifier channels. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input offset voltage | 1000 µV max (25°C) - eliminates need for manual nulling in precision transmitter designs. |
| Sub-100 nA input bias current | 0.6 pA typical (25°C) - prevents significant voltage drop across >100 MΩ source impedances. |
| Single-supply optimized architecture | Operates from 4 V to 16 V with input range extending below GND - simplifies power architecture in 4–20 mA loop-powered devices. |
| Latch-up immunity | Designed-in robustness against transient-induced CMOS latch-up - improves reliability in harsh industrial environments. |
| Low-voltage noise | 70 nV/√Hz at 1 kHz - preserves signal integrity in low-amplitude sensor interfaces (e.g., thermocouples, strain gauges). |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
|
Use Scenario: Amplifying microvolt-level ionization chamber or thermopile output in battery-operated residential fire alarms. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with offset-stable gain. Use Value: 1 mV VIO max and 0.1 µV/month drift ensure long-term calibration stability without periodic recalibration. |
Use Scenario: Conditioning bridge output from MEMS pressure sensors in HVAC and process control transmitters. IC Role / Device Role / Timing Role: Low-power, rail-to-rail input/output signal conditioner for 4–20 mA loop interface. Use Value: 68 µA supply current per quad enables >10-year battery life in wireless pressure nodes; 10¹² Ω input prevents bridge imbalance errors. |
| Temperature Transmitter | Motion Detector |
|
Use Scenario: Linearizing and amplifying RTD or thermistor voltage in industrial temperature probes with 2-wire analog output. IC Role / Device Role / Timing Role: Precision buffer and programmable-gain amplifier in analog front-end before ADC or current DAC. Use Value: Common-mode input range to –0.2 V allows direct connection to grounded-sensor configurations without level-shifting circuitry. |
Use Scenario: Signal conditioning of pyroelectric (PIR) sensor output in low-power occupancy sensors for smart lighting. IC Role / Device Role / Timing Role: High-impedance AC-coupled amplifier with adjustable gain and low-noise filtering. Use Value: 70 nV/√Hz noise floor and sub-picoampere bias current preserve weak PIR signal integrity; 4 V min supply enables coin-cell operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L9CDR | Same die, C-suffix rating (0°C to 70°C operating range); 1000 µV VIO max at 25°C, but wider temp drift spec (1.1 µV/°C vs 1.0 µV/°C for I-suffix). | Not rated for –40°C start-up; unsuitable for outdoor or automotive-adjacent industrial enclosures. | Select TLC27L9CDR only for cost-sensitive commercial-grade applications within 0–70°C ambient. |
| OPA2333AIDR | Zero-drift architecture; 10 µV max VIO, 0.02 µV/°C drift, but higher supply current (17 µA per amp, i.e., 68 µA total for quad) and 1.8–5.5 V supply range. | Superior DC accuracy and drift, but incompatible with 12 V sensor supplies and non-rail-to-rail output (min 100 mV above GND). | Choose OPA2333AIDR when µV-level offset stability over full temperature range is critical, and supply is strictly ≤5.5 V. |
Compared with TLC27L9IDR, TLC27L9CDR trades extended temperature capability for lower cost, while OPA2333AIDR delivers superior offset performance at the expense of supply voltage flexibility and output swing - making TLC27L9IDR optimal for wide-input-voltage, industrial-grade, battery-conscious designs requiring proven long-term stability.
Availability
TLC27L9IDR is available at Aetrix Electronics and suitable for field transmitters, smoke detectors, and battery-powered industrial sensors requiring stable component supply, long-lifecycle availability, and guaranteed traceable sourcing.
Supply support for TLC27L9IDR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of heritage in precision op amp design.
The TLC27Lx family was engineered for ultra-low-power, high-precision analog signal conditioning in industrial and environmental monitoring systems - emphasizing offset stability, single-supply usability, and robustness in unregulated or battery-constrained environments.
FAQ
What is the maximum operating temperature range for the TLC27L9IDR?
The TLC27L9IDR is characterized for operation from –40°C to +85°C (I-suffix grade). This extended temperature range makes it suitable for deployment in outdoor industrial enclosures, HVAC equipment, and remote field instrumentation where ambient extremes are expected. The device maintains its 1000 µV input offset voltage maximum and 68 µA typical supply current across this full range.
Does the TLC27L9IDR support true rail-to-rail input and output operation?
The TLC27L9IDR supports rail-to-rail output swing (within 50 mV of GND and VDD at 5 V), but its input common-mode range extends only to –0.2 V below GND and up to VDD – 1.5 V (e.g., 3.5 V at 5 V supply). It is not a full rail-to-rail input op amp, though the below-rail capability enables direct interfacing with ground-referenced sensors - a key advantage over standard CMOS or bipolar op amps.
Can the TLC27L9IDR be used with a 3.3 V supply?
No - the TLC27L9IDR requires a minimum supply voltage of 4 V for guaranteed operation across its full –40°C to +85°C temperature range. At 3.3 V, functionality is not specified and may result in degraded gain, reduced output swing, or failure to meet input offset or bandwidth specifications. For 3.3 V systems, consider alternatives like the OPA2333 or TLV2464.
How does the input offset voltage drift of the TLC27L9IDR compare to other precision op amps?
The TLC27L9IDR exhibits typically 0.1 µV/month drift (including first 30 days), which is exceptionally stable for a non-zero-drift LinCMOS™ amplifier. This is significantly better than general-purpose CMOS op amps (often >1 µV/month) and competitive with many chopper-stabilized devices - providing long-term calibration retention in field-deployed equipment without active correction circuitry.
Is the TLC27L9IDR pin-compatible with other devices in the TLC27Lx family?
Yes - all TLC27Lx quad op amps (including TLC27L4, TLC27L4A, TLC27L4B, and TLC27L9) share identical SOIC-14 (D), PDIP-14 (N), SOP-14 (NS), and TSSOP-14 (PW) pinouts. The TLC27L9IDR can be substituted for any other TLC27Lx variant in the same package without PCB changes, provided the system's offset voltage, temperature range, and supply voltage requirements align with the I-suffix grade.
TLC27L9IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 57µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC27L9IDR FAQ
1.How can I place an order for TLC27L9IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L9IDR 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 TLC27L9IDR reliable?
The price and inventory of TLC27L9IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L9IDR is usually 5 days.
3.What payment methods are accepted for TLC27L9IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L9IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L9IDR?
TLC27L9IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L9IDR 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 TLC27L9IDR?
For technical support, including TLC27L9IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L9IDR requirements.
6.How does Aetrix verify that TLC27L9IDR is sourced from the original manufacturer or authorized distributors?
All TLC27L9IDR 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 TLC27L9IDR meets industry standards.
7.What is the process for return or replacement of TLC27L9IDR?
All TLC27L9IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L9IDR, 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 TLC27L9IDR part is unused and in its original packaging.
Return procedure for TLC27L9IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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