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Texas Instruments TLC27M9CDR
- Part No.:
- TLC27M9CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27M9CDR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,711
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Product details
Overview
TLC27M9CDR from Texas Instruments is a precision quad operational amplifier featuring ±300 µV max input offset voltage at 25°C, low 0.6 µV/°C drift, 32 nV/√Hz input noise at 1 kHz, rail-to-rail output swing to negative rail, and 6 TΩ typical input impedance. It operates from 4 V to 16 V across −40°C to 85°C and is used in multiplexed data-acquisition systems requiring stable DC accuracy and low power.
For engineers reviewing the TLC27M9CDR datasheet, TLC27M9CDR pinout, TLC27M9CDR application, or TLC27M9CDR equivalent, this page delivers verified specifications, SOIC-14 package details, real-world use cases in test equipment and motor control, and validated alternative options for design continuity.
Technical Context
The TLC27M9CDR implements LinCMOS™ process technology to combine MOSFET-level input impedance (6 TΩ typ) with bipolar-like speed and precision. Its trimmed offset voltage and low temperature coefficient enable high-accuracy DC-coupled signal conditioning without external nulling.
It supports single-supply operation down to 4 V with common-mode input range extending to the negative rail and output swing reaching within 50 mV of ground-critical for sensor front-ends and industrial analog I/O modules operating near ground-referenced signals.
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 voltage drift | ±0.6 µV/°C - ensures <1.2 mV total drift over −40°C to 85°C ambient, critical for uncalibrated field instruments |
| Input noise density | 32 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor outputs (e.g., thermocouples, strain gauges) |
| Supply current (4 amps) | 420–1120 µA at 25°C, VDD = 5 V - allows battery-powered portable test gear with >100-hour runtime on AA cells |
| Common-mode input range | −0.2 V to 3.5 V at VDD = 5 V - accepts inputs below ground, enabling level-shifting and true single-supply transducer interfacing |
| Output voltage swing | 0–4.95 V at VDD = 5 V, IOL = 0 - delivers full dynamic range into 10 kΩ loads without clipping near rails |
| Unity-gain bandwidth | 525 kHz at VDD = 5 V - sufficient for anti-aliasing filters, active low-pass stages, and closed-loop control up to ~50 kHz |
Pinout & Package
Package: SOIC-14 (D), 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 feedback networks or downstream ADC drivers with rail-to-rail capability |
| 1IN−, 1IN+ | Inverting / Non-inverting input | Differential pair for channel A - high-Z inputs accept high-impedance sensors without loading |
| VDD | Positive supply | Single 4–16 V rail - powers all four op-amps; no split-supply required |
| 2IN+, 2IN−, 2OUT | Input pair / Output | Amplifier B - identical specs to channel A; enables dual instrumentation or differential drive |
| 3OUT, 3IN−, 3IN+ | Output / Input pair | Amplifier C - supports multi-channel signal conditioning (e.g., 3-phase motor current sensing) |
| GND | Ground reference | Return path for all channels - must be low-impedance to maintain CMRR >65 dB |
| 4IN+, 4IN−, 4OUT | Input pair / Output | Amplifier D - completes quad configuration for simultaneous analog processing (e.g., 4-channel DAQ) |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed offset voltage | ±300 µV max at 25°C - eliminates need for manual offset nulling in production calibration |
| ESD protection circuitry | Integrated HBM protection - withstands >2 kV ESD events per JEDEC JS-001, reducing board-level TVS requirements |
| Latch-up immunity | Designed-in immunity - prevents destructive latch-up during overvoltage transients on inputs or supplies |
| Rail-to-rail output swing | Reaches within 50 mV of GND and VDD - maximizes usable dynamic range in single-supply systems |
| Wide supply range | 4 V to 16 V across −40°C to 85°C - supports legacy 5 V, modern 12 V industrial rails, and brown-out tolerant designs |
Applications
| Multiplexed Data-Acquisition Systems | Test and Measurement Equipment |
|---|---|
Use Scenario: Simultaneous sampling of multiple low-level sensor signals (e.g., RTDs, thermocouples) via analog multiplexer before ADC conversion. IC Role / Device Role: Precision buffer and gain stage for each channel, rejecting multiplexer-induced charge injection and maintaining DC accuracy. Use Value: ±300 µV offset and 0.6 µV/°C drift ensure <±0.1% full-scale error across temperature without recalibration. |
Use Scenario: Front-end signal conditioning in handheld multimeters and benchtop oscilloscope probes. IC Role / Device Role: Low-noise, high-Z input amplifier driving attenuators and ADC drivers with minimal loading. Use Value: 6 TΩ input impedance prevents signal attenuation on high-impedance probe tips; 32 nV/√Hz preserves SNR in µV-range measurements. |
| Motor Drive Control Modules | Programmable Logic Controllers (PLCs) |
Use Scenario: Current sensing and feedback loop conditioning in 3-phase inverter gate drivers and torque control circuits. IC Role / Device Role: Isolated shunt amplifier and error amplifier in closed-loop current regulation. Use Value: Rail-to-rail output swing enables full utilization of 0–3.3 V ADC input range; low quiescent current extends thermal margin in compact enclosures. |
Use Scenario: Analog input/output module signal conditioning for 4–20 mA loop interfaces and voltage-based sensor inputs. IC Role / Device Role: Precision voltage follower and level translator between field-side sensors and isolated MCU domain. Use Value: Common-mode input range extending to −0.2 V allows direct connection to grounded current-sense resistors; 420 µA supply current reduces module power dissipation. |
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 |
|---|---|---|---|
| TLC27M4BCDR | Same SOIC-14 package; ±2 mV max offset (vs. ±0.3 mV for TLC27M9CDR); higher 2000 µV max drift | Acceptable where <12-bit system accuracy suffices; less suitable for high-resolution sensor front-ends | Select when cost sensitivity outweighs sub-mV offset requirement and thermal stability is secondary |
| OPA2277UA/2K5 | SOIC-8 dual op-amp; ±10 µV max offset, 0.1 µV/°C drift; higher 2.2 mA supply current per amp | Requires two devices for quad function; superior DC precision but incompatible pinout and higher power | Choose for ultra-low-drift applications where PCB area and power budget allow dual SOIC-8 placement |
Compared with TLC27M9CDR, TLC27M4BCDR trades offset accuracy for lower cost in moderate-precision systems, while OPA2277UA/2K5 delivers superior drift performance at the expense of power and layout complexity-making TLC27M9CDR optimal for cost-constrained, battery-aware, quad-channel precision designs.
Availability
TLC27M9CDR is available at Aetrix Electronics and suitable for multiplexed data-acquisition systems, test and measurement equipment, and programmable logic controllers requiring stable component supply, long-term manufacturability, and consistent electrical performance across temperature.
Supply support for TLC27M9CDR 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-grade signal chain solutions.
The TLC27Mxx family was designed for high-accuracy, low-power analog signal conditioning in industrial automation, test equipment, and sensor interface applications-emphasizing DC precision, rail-compatible operation, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27M9CDR?
The TLC27M9CDR is rated for operation from −40°C to +85°C, with guaranteed performance across this full industrial temperature range. Electrical characteristics-including input offset voltage, supply current, and unity-gain bandwidth-are specified at both extremes and at 25°C per the official TI datasheet SLOS093E. This makes the TLC27M9CDR suitable for deployment in factory-floor PLCs, outdoor test gear, and motor control cabinets without derating.
Does the TLC27M9CDR support true single-supply operation with inputs referenced to ground?
Yes, the TLC27M9CDR supports true single-supply operation: its common-mode input voltage range extends to −0.2 V (below ground) at VDD = 5 V, and its output swings to within 50 mV of GND. This allows direct interfacing with grounded shunt resistors, thermocouples, and other ground-referenced sensors without level-shifting circuitry-reducing bill-of-materials and improving DC accuracy in the TLC27M9CDR-based design.
How does the input bias current of the TLC27M9CDR compare to bipolar op-amps, and why does it matter?
The TLC27M9CDR exhibits ±10 pA typical input bias current at 25°C-six orders of magnitude lower than standard bipolar op-amps (~100 nA). This ultra-low bias current prevents voltage errors across high-impedance sources (e.g., pH electrodes, photodiode transimpedance feedback resistors >1 MΩ), preserving signal integrity and eliminating the need for bias-current compensation networks in the TLC27M9CDR application circuit.
Can the TLC27M9CDR drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes-the TLC27M9CDR delivers a guaranteed output swing of 0 V to 4.95 V (at VDD = 5 V, IOL = 0) into a 10 kΩ load, meeting rail-to-rail specification. At higher currents (e.g., 5 mA), VOL rises to ≤50 mV, still preserving >99% of full-scale range. This behavior is confirmed in Figures 6-5 and 6-11 of the TLC27M9CDR datasheet and enables direct interfacing with SAR ADCs and analog switches without external buffers.
Is the TLC27M9CDR pin-compatible with other devices in the TLC27Mxx family?
Yes-the TLC27M9CDR shares identical SOIC-14 pinout and footprint with TLC27M4, TLC27M4A, TLC27M4B, and TLC27M4C variants. All devices use the same pin configuration shown in Figure 5-1 of the datasheet: channels A–D arranged sequentially with shared VDD and GND. This allows drop-in replacement within the same package grade, provided system-level offset, drift, and bandwidth requirements align with the TLC27M9CDR's tighter specifications.
TLC27M9CDR 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:
- CMOS
- 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:
- 210 µV
- Current - Supply:
- 570µA (x4 Channels)
- Current - Output / Channel:
- 30 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-SOIC
TLC27M9CDR FAQ
1.How can I place an order for TLC27M9CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27M9CDR 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 TLC27M9CDR reliable?
The price and inventory of TLC27M9CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27M9CDR is usually 5 days.
3.What payment methods are accepted for TLC27M9CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27M9CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27M9CDR?
TLC27M9CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27M9CDR 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 TLC27M9CDR?
For technical support, including TLC27M9CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27M9CDR requirements.
6.How does Aetrix verify that TLC27M9CDR is sourced from the original manufacturer or authorized distributors?
All TLC27M9CDR 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 TLC27M9CDR meets industry standards.
7.What is the process for return or replacement of TLC27M9CDR?
All TLC27M9CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27M9CDR, 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 TLC27M9CDR part is unused and in its original packaging.
Return procedure for TLC27M9CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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