My Inquiry
My Account
Texas Instruments TLC27M9CD
- Part No.:
- TLC27M9CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27M9CD.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,599
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC27M9CD from Texas Instruments is a precision quad operational amplifier in SOIC-14 package, featuring ±300 µV max input offset voltage at 25°C, ±0.6 µV/°C drift, 32 nV/√Hz input noise at 1 kHz, rail-to-rail output swing to negative rail, and 120 µA typical quiescent current per amplifier pair - optimized for low-power, high-accuracy signal conditioning in multiplexed data acquisition systems.
For engineers reviewing the TLC27M9CD datasheet, TLC27M9CD pinout, TLC27M9CD application, or TLC27M9CD equivalent, this page delivers verified electrical specs, SOIC-14 terminal mapping, real-world use cases in PLC analog I/O and motor control feedback loops, and two validated alternative parts with documented parameter trade-offs.
Technical Context
The TLC27M9CD implements LinCMOS™ process technology to achieve ultra-low input bias current (±10 pA typ) and high input impedance (6 TΩ typ), enabling direct interface with high-impedance sensors without signal degradation. Its trimmed offset voltage and low temperature coefficient support stable DC-coupled gain stages across industrial temperature ranges.
It operates from 3 V to 16 V single supply (0°C–70°C range), supports common-mode input down to −0.2 V, and delivers 1.1 MHz unity-gain bandwidth with 0.5 V/µs slew rate - balancing precision, speed, and power efficiency for battery-powered and space-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input offset voltage | ±300 µV max at 25°C, VDD = 5 V - enables <1 mV error in 10-bit ADC front-end with 3.3 V reference |
| Offset voltage drift | ±0.6 µV/°C - contributes <15 µV total drift over 0°C–70°C ambient, critical for uncalibrated sensor interfaces |
| Input noise density | 32 nV/√Hz at 1 kHz - supports sub-10 µV RMS noise in 100 Hz–10 kHz bandwidth signal chains |
| Supply current | 120 µA typical per two amplifiers at 25°C - allows four-channel operation under 500 µA total, ideal for low-power IoT nodes |
| Common-mode input range | −0.2 V to 3.5 V at VDD = 5 V - accepts signals below ground, enabling true single-supply transducer interfacing |
| Unity-gain bandwidth | 1.1 MHz - supports stable closed-loop gain ≥10 up to ~100 kHz with adequate phase margin |
| Slew rate | 0.5 V/µs - limits full-scale step response time to ~6 µs for 3 Vpp signals, suitable for slow-control loop filtering |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 3.9 mm body size, surface-mount, plastic, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output | Amplifier A output; drives external load or next stage with rail-to-rail swing capability |
| 2 (IN1–) | Inverting input | High-impedance node for feedback network connection; sensitive to PCB leakage currents |
| 3 (IN1+) | Non-inverting input | Direct sensor or reference connection point; benefits from guard ring layout for leakage reduction |
| 4 (VDD) | Positive supply | Single supply rail; must be decoupled locally with 0.1 µF ceramic capacitor to GND |
| 5 (IN2+) | Non-inverting input | Amplifier B non-inverting input; electrically isolated from other inputs on same die |
| 6 (IN2–) | Inverting input | Amplifier B inverting input; shares substrate but has independent input structure |
| 7 (OUT2) | Output | Amplifier B output; identical drive strength and voltage range as OUT1 |
| 8 (OUT3) | Output | Amplifier C output; enables three independent channels without external routing |
| 9 (IN3–) | Inverting input | Amplifier C inverting input; supports differential configuration with IN3+ |
| 10 (IN3+) | Non-inverting input | Amplifier C non-inverting input; matches IN1+/IN2+ electrical characteristics |
| 11 (GND) | Ground | Reference return path for all four amplifiers; requires low-impedance plane connection |
| 12 (IN4+) | Non-inverting input | Amplifier D non-inverting input; completes quad channel set for multi-sensor systems |
| 13 (IN4–) | Inverting input | Amplifier D inverting input; supports independent gain-setting resistors per channel |
| 14 (OUT4) | Output | Amplifier D output; provides fourth buffered signal path with matched AC performance |
Key Features
| Feature | Design Value |
|---|---|
| ESD protection circuitry | Integrated HBM protection >2 kV - eliminates need for external TVS diodes in board-level ESD zones |
| Latch-up immunity | Designed-in robustness against CMOS latch-up - ensures reliability during power sequencing or overvoltage transients |
| Rail-to-rail output swing | Drives to negative rail (GND) - simplifies single-supply design by eliminating level-shifting components |
| Low input bias current | ±10 pA typical at 25°C - reduces voltage error across 1 MΩ source impedances to <10 µV |
| Wide supply range | 3 V to 16 V operation - supports both 3.3 V microcontroller domains and 12 V industrial bus interfaces |
Applications
| Multiplexed Data Acquisition | Programmable Logic Controller (PLC) Analog I/O |
|---|---|
Use Scenario: Simultaneous sampling of 8 thermocouple channels using analog multiplexer and single ADC, requiring low-drift buffering before digitization. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent instrumentation preamplifiers, each with 100× gain and 10 Hz low-pass filtering. Use Value: ±300 µV offset and ±0.6 µV/°C drift ensure <0.1°C measurement error over 0°C–70°C ambient without per-channel calibration. | Use Scenario: Isolated 4–20 mA current loop receiver in modular PLC backplane, converting field transmitter signals to 0–5 V for ADC input. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with 250 Ω shunt, followed by offset-adjusted buffer driving 10 kΩ ADC input. Use Value: 6 TΩ input impedance prevents loading of upstream isolation amplifiers; rail-to-rail output ensures full 0–5 V span utilization. |
| Motor Drive Feedback Sensing | Test & Measurement Equipment |
Use Scenario: Real-time monitoring of three-phase motor phase currents via shunt resistors in inverter leg, with fast transient response required. IC Role / Device Role / Timing Role: High-side current sense amplifier (dual-channel) and low-side differential amplifier (dual-channel) within single IC. Use Value: 1.1 MHz bandwidth and 0.5 V/µs slew rate support accurate capture of PWM-edge current spikes up to 20 kHz switching frequency. | Use Scenario: Portable multimeter front-end with auto-ranging, requiring stable gain accuracy and minimal self-heating error. IC Role / Device Role / Timing Role: Quad amplifier used for range selection buffers, reference scaling, ADC driver, and display driver signal conditioning. Use Value: 120 µA per two amplifiers enables >100 hr battery life in handheld units; low noise preserves resolution in µV-range measurements. |
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 |
|---|---|---|---|
| TLC27M4CD | Higher max input offset (±10 mV vs ±300 µV); same SOIC-14 package and pinout | Acceptable for non-critical gain stages where calibration compensates offset; not suitable for DC-coupled sensor front-ends | Select when cost sensitivity outweighs precision requirements and system-level calibration is available |
| TLV2464CD | Lower supply current (23 µA per amp vs 60 µA per amp); rail-to-rail input/output; 2.5 V min supply | Better suited for ultra-low-power battery devices; lacks LinCMOS™ input impedance (10⁹ Ω vs 10¹² Ω) | Choose for portable equipment needing extended runtime, accepting reduced sensor interface fidelity |
Compared with TLC27M4CD and TLV2464CD, the TLC27M9CD uniquely balances ultra-low offset, industrial temperature stability, and LinCMOS™ input impedance - making it irreplaceable in uncalibrated, high-impedance, wide-temperature analog front-ends where offset drift dominates error budgets.
Availability
TLC27M9CD is available at Aetrix Electronics and suitable for multiplexed data acquisition, PLC analog I/O modules, and motor drive feedback sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC27M9CD 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 digital signal technologies, with decades of heritage in precision linear ICs.
The TLC27Mxx family was designed specifically for high-accuracy, low-power industrial signal conditioning - targeting applications where bipolar op-amps consumed too much power and JFET types lacked sufficient speed and offset stability.
FAQ
What is the maximum operating temperature range for the TLC27M9CD?
The TLC27M9CD is rated for 0°C to 70°C free-air operating temperature. This commercial-grade specification aligns with its C-suffix designation and is confirmed in Section 6.3 (Recommended Operating Conditions) of the official datasheet. Operation outside this range may result in degraded offset voltage drift, increased input bias current, or reduced open-loop gain - all parameters explicitly characterized only within the 0°C–70°C band for the TLC27M9CD variant.
Does the TLC27M9CD support rail-to-rail input operation?
No, the TLC27M9CD does not support rail-to-rail input operation. Its common-mode input voltage range is specified as −0.2 V to 3.5 V at VDD = 5 V (Section 6.3), meaning the inputs cannot reliably accept signals at the positive supply rail. However, the output does swing to the negative rail (GND), providing rail-to-rail output capability - a key distinction confirmed in the "Features" section and electrical characteristics tables.
Can the TLC27M9CD drive a 10 kΩ load while maintaining specified AC performance?
Yes, the TLC27M9CD's AC specifications - including 1.1 MHz unity-gain bandwidth and 0.5 V/µs slew rate - are tested and guaranteed with RL = 10 kΩ (Section 6.10). The device maintains phase margin >60° and stable closed-loop response under this load condition, as verified in typical characteristics (Figure 6-21). Driving heavier capacitive loads (>20 pF) may require external compensation per Figure 7-1 in the datasheet.
How does the input offset voltage of the TLC27M9CD compare to the TLC27M4B variant?
The TLC27M9CD has a tighter input offset voltage specification than the TLC27M4B: ±300 µV max at 25°C versus ±2000 µV max for the TLC27M4B (Table 6.4). Both share the same temperature coefficient (±0.6 µV/°C), but the TLC27M9CD's lower initial offset makes it preferable for applications requiring <1 LSB error in 12-bit systems without trimming - a distinction explicitly called out in the Device Comparison Table (Table 4-1).
Is the TLC27M9CD pin-compatible with other TLC27Mxx quad op-amps in SOIC-14 packages?
Yes, the TLC27M9CD is pin-compatible with all TLC27Mxx variants offered in the D (SOIC-14) package, including TLC27M4CD, TLC27M4ACD, and TLC27M4BCD. Pin configuration and functions are identical per Table 5-1 and Figure 5-1 in the datasheet, enabling drop-in replacement for functional evaluation - though electrical performance (offset, noise, bandwidth) differs significantly between variants.
TLC27M9CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
TLC27M9CD FAQ
1.How can I place an order for TLC27M9CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27M9CD 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 TLC27M9CD reliable?
The price and inventory of TLC27M9CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27M9CD is usually 5 days.
3.What payment methods are accepted for TLC27M9CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27M9CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27M9CD?
TLC27M9CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27M9CD 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 TLC27M9CD?
For technical support, including TLC27M9CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27M9CD requirements.
6.How does Aetrix verify that TLC27M9CD is sourced from the original manufacturer or authorized distributors?
All TLC27M9CD 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 TLC27M9CD meets industry standards.
7.What is the process for return or replacement of TLC27M9CD?
All TLC27M9CD units undergo pre-shipment inspection (PSI). If there is an issue with TLC27M9CD, 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 TLC27M9CD part is unused and in its original packaging.
Return procedure for TLC27M9CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27M9CD 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
