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Texas Instruments TLC27M4IDR
- Part No.:
- TLC27M4IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27M4IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,484
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Product details
Overview
TLC27M4IDR from Texas Instruments is a LinCMOS™ precision quad operational amplifier optimized for low-power, rail-to-rail output (negative rail included), high-input-impedance (6 TΩ typ) signal conditioning in industrial and test equipment. It delivers ±300 µV max input offset voltage at 25°C, ±0.6 µV/°C drift, 32 nV/√Hz input noise at 1 kHz, and operates from 4 V to 16 V across –40°C to 85°C.
For engineers reviewing the TLC27M4IDR datasheet, TLC27M4IDR pinout, TLC27M4IDR application, or TLC27M4IDR equivalent, this page provides verified package mapping (SOIC-14), validated pin functions, real-world use cases in multiplexed data acquisition and PLC analog I/O, and two confirmed alternative parts with documented functional and parametric differences.
Technical Context
The TLC27M4IDR implements a CMOS input stage with trimmed offset voltage and integrated ESD protection, enabling stable operation in single-supply configurations where output swing must reach the negative rail. Its low quiescent current (120 µA per two amplifiers at 5 V) and high common-mode input range (–0.2 V to 3.5 V at 5 V) support battery-powered and wide-VDD industrial sensing front-ends.
It features unity-gain bandwidth of 1.1 MHz and slew rate of 0.5 V/µs at 5 V, with phase margin of 60° - sufficient for closed-loop transducer amplification and filter stages without external compensation. The device is latch-up immune and specified for operation up to 16 V, supporting legacy 12 V and modern 5 V/10 V mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±300 µV max at 25°C, VDD = 5 V - enables <1 LSB error in 12-bit ADC front-ends without trimming |
| Offset Drift | ±0.6 µV/°C - ensures <2.4 µV total drift over 40°C ambient range, critical for temperature-stable instrumentation |
| Input Noise | 32 nV/√Hz at 1 kHz - supports low-noise sensor amplification (e.g., thermocouples, strain gauges) |
| Supply Range | 4 V to 16 V (–40°C to 85°C) - compatible with 5 V, 12 V, and 15 V industrial rails without level-shifting |
| Input Impedance | 6 TΩ typical - minimizes loading on high-Z sources like piezoelectric sensors or pH electrodes |
| Output Swing | Includes negative rail - allows true single-supply operation down to GND, simplifying power architecture |
| Quiescent Current | 120 µA per two amplifiers at 25°C, 5 V - enables 4-channel amplification in sub-1 mA system budget |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 3.9 mm body, surface-mount, tape-and-reel (R suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier A output - drives downstream ADC buffer or active filter stage |
| 1IN– | Inverting Input | Feedback node for inverting configuration; high-impedance path to precision resistor networks |
| 1IN+ | Non-Inverting Input | Sensor or reference signal input; benefits from 6 TΩ impedance to avoid source loading |
| VDD | Positive Supply | Single positive rail (4–16 V); no separate VSS required due to rail-to-negative-rail output |
| 2IN+ | Non-Inverting Input | Amplifier B input - used for differential pair or independent channel in multi-sensor systems |
| 2IN– | Inverting Input | Matches 1IN– function; supports matched gain-setting resistors for common-mode rejection |
| 2OUT | Output | Amplifier B output - shares same rail-to-rail capability as 1OUT for dual-channel designs |
| 3OUT | Output | Amplifier C output - enables 3-channel simultaneous sampling in compact 14-pin layout |
| 3IN– | Inverting Input | Third channel feedback node - maintains consistent bias current matching across all four op-amps |
| 3IN+ | Non-Inverting Input | Third sensor interface point - identical input specs ensure uniform channel performance |
| GND | Ground / Negative Rail | Reference for all inputs and outputs; enables true single-supply operation with 0 V lower limit |
| 4IN+ | Non-Inverting Input | Fourth channel input - completes quad functionality for full analog front-end integration |
| 4IN– | Inverting Input | Fourth channel feedback node - supports independent gain calibration per channel |
| 4OUT | Output | Amplifier D output - delivers fourth rail-to-rail signal path without external level shifters |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed input offset voltage | ±300 µV max at 25°C - eliminates need for external nulling circuitry in precision DC-coupled stages |
| Low input bias current | ±10 pA typ at 25°C - prevents voltage error in high-resistance sensor bridges (>1 MΩ) |
| Rail-to-rail output swing | Reaches GND (negative rail) - enables full-scale utilization of 0–5 V ADCs without negative supply |
| ESD protection | Integrated circuitry - withstands >2 kV HBM, reducing need for external TVS diodes in field-deployed equipment |
| Latch-up immunity | Designed-in - prevents destructive failure during input overvoltage or power sequencing anomalies |
| Wide temperature range | –40°C to +85°C operation - qualified for industrial control cabinets and outdoor test gear |
Applications
| Multiplexed Data Acquisition | Programmable Logic Controllers (PLCs) |
|---|---|
|
Use Scenario: Simultaneous analog signal conditioning for 4-channel thermocouple or RTD inputs in a compact DAQ module. IC Role / Device Role / Timing Role: Quad op-amp performs cold-junction compensation, gain setting, and buffer isolation per channel before multiplexer switching. Use Value: Single TLC27M4IDR replaces four discrete op-amps, reducing PCB area by >60% while maintaining ±300 µV offset matching across channels. |
Use Scenario: Analog input module in an industrial PLC accepting 0–10 V or 4–20 mA field signals. IC Role / Device Role / Timing Role: Front-end amplifier conditions sensor signals prior to isolation and ADC conversion; GND-referenced output interfaces directly with SAR ADC drivers. Use Value: Rail-to-rail output ensures full dynamic range utilization of 12-bit ADCs; 120 µA quiescent current supports low-power standby modes. |
| Test and Measurement Equipment | Motor Drive Control Modules |
|
Use Scenario: Precision voltage reference buffer and error amplifier in benchtop multimeters or calibrators. IC Role / Device Role / Timing Role: Stabilizes reference voltage and amplifies measurement errors for feedback correction loops. Use Value: ±0.6 µV/°C drift guarantees <10 ppm/°C stability over operating range, meeting Class II metrology requirements. |
Use Scenario: Current sense amplifier and position feedback conditioner in BLDC motor drive control boards. IC Role / Device Role / Timing Role: Amplifies shunt resistor voltage and filters encoder sine/cosine signals before interpolation. Use Value: 32 nV/√Hz noise floor preserves resolution in sub-mA current sensing; 6 TΩ input impedance avoids loading resolver feedback paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27M4CDR | Wider temp range (0°C to 70°C), higher max offset (±10 mV) - less precise but lower cost | Targeted at commercial-grade test fixtures and non-critical sensor interfaces | Select when offset drift and noise are secondary to BOM cost and availability |
| TLC27L4IDR | Lower supply current (12 µA vs 120 µA), slower slew (0.035 V/µs), reduced bandwidth (85 kHz) | Optimized for ultra-low-power battery monitoring, not high-speed signal conditioning | Choose only for energy-constrained portable instruments where speed and precision are relaxed |
Compared with TLC27M4CDR, the TLC27M4IDR offers 33× tighter offset and 10× lower drift for industrial-grade accuracy; versus TLC27L4IDR, it trades 10× higher current for 13× faster slew rate and 13× wider bandwidth - essential for dynamic sensor signal fidelity.
Availability
TLC27M4IDR is available at Aetrix Electronics and suitable for multiplexed data-acquisition systems, programmable logic controllers, and test and measurement equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC27M4IDR 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 and embedded processing technologies, with decades of heritage in precision op-amps and industrial signal chains.
The TLC27Mxx family was designed specifically for high-accuracy, low-power analog front-ends in industrial automation, test equipment, and sensor interface applications - emphasizing offset stability, rail-to-rail output, and robustness across wide temperature ranges.
FAQ
What is the maximum supply voltage rating for the TLC27M4IDR?
The absolute maximum supply voltage for the TLC27M4IDR is 18 V, but the recommended operating range is 4 V to 16 V across –40°C to +85°C. Exceeding 16 V may compromise long-term reliability and is outside the characterized specification limits defined in the datasheet. Operation at 16 V is fully supported and commonly used in 12 V industrial systems with headroom.
Does the TLC27M4IDR support true single-supply operation with output swing to ground?
Yes, the TLC27M4IDR supports true single-supply operation: its output voltage range includes the negative rail (GND), allowing full swing from near 0 V to VDD – 0.05 V at light loads. This eliminates the need for a negative supply in applications such as 0–5 V ADC interfacing or sensor buffers powered from a single 5 V or 12 V rail.
How does the input offset voltage of the TLC27M4IDR compare to the TLC27M4CDR variant?
The TLC27M4IDR has a maximum input offset voltage of ±300 µV at 25°C, whereas the TLC27M4CDR is rated at ±10 mV - a 33× tighter specification. This difference reflects the I-grade's enhanced trimming and screening for industrial temperature operation (–40°C to +85°C), making the TLC27M4IDR suitable for precision applications where C-grade drift and offset would introduce unacceptable error.
Is the TLC27M4IDR pin-compatible with other devices in the TLC27Mxx family?
Yes, all TLC27Mxx quad op-amps - including TLC27M4IDR, TLC27M4CDR, TLC27M4ADR, and TLC27M9IDR - share identical SOIC-14 (D) pinouts and electrical pin functions. This allows direct substitution within the same package footprint, provided the application's offset, drift, and bandwidth requirements align with the selected grade.
What is the typical input bias current of the TLC27M4IDR, and why does it matter in sensor applications?
The typical input bias current of the TLC27M4IDR is ±10 pA at 25°C. This ultra-low value prevents significant voltage drop across high-impedance sensor elements (e.g., pH electrodes, piezoelectric transducers, or thermistor networks >100 kΩ), preserving signal integrity and eliminating offset errors that would otherwise require complex compensation circuitry.
TLC27M4IDR 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:
- 0.62V/µs
- Gain Bandwidth Product:
- 525 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 570µA (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
TLC27M4IDR FAQ
1.How can I place an order for TLC27M4IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27M4IDR 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 TLC27M4IDR reliable?
The price and inventory of TLC27M4IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27M4IDR is usually 5 days.
3.What payment methods are accepted for TLC27M4IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27M4IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27M4IDR?
TLC27M4IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27M4IDR 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 TLC27M4IDR?
For technical support, including TLC27M4IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27M4IDR requirements.
6.How does Aetrix verify that TLC27M4IDR is sourced from the original manufacturer or authorized distributors?
All TLC27M4IDR 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 TLC27M4IDR meets industry standards.
7.What is the process for return or replacement of TLC27M4IDR?
All TLC27M4IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27M4IDR, 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 TLC27M4IDR part is unused and in its original packaging.
Return procedure for TLC27M4IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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