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Texas Instruments TLC27L7ID
- Part No.:
- TLC27L7ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L7ID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:166
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Product details
Overview
TLC27L7ID from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 1 mV max input offset voltage (25°C), ultra-low 34 µA typical supply current (VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling accurate amplification in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L7ID datasheet, TLC27L7ID pinout, TLC27L7ID application, or TLC27L7ID equivalent, key selection criteria include its 1 mV precision grade, −0.2 V to 3.5 V common-mode input range at 5 V supply, LinCMOS™ input impedance >10¹² Ω, and guaranteed operation from −40°C to +85°C in SOIC-8 packaging.
Technical Context
The TLC27L7ID uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable input offset voltage (1 µV/°C tempco) and sub-picoamp input bias currents (0.6 pA typ), eliminating thermal drift errors in high-impedance sensor interfaces. Its dual-amplifier architecture supports independent channel use in differential front-ends or cascaded gain stages.
It operates from 4 V to 16 V over −40°C to +85°C, supports true single-supply operation with inputs extending below ground, and features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), making it suitable for industrial field instrumentation with long-term parametric stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIO max | 1000 µV at 25°C - enables <1 LSB error in 10-bit ADC systems with ±1 V input range |
| IDD typ | 34 µA at VDD = 5 V - supports >10-year battery life in 25 µA average-current IoT sensor nodes |
| VICR | −0.2 V to 3.5 V at VDD = 5 V - accepts signals below ground, critical for bridge sensor biasing |
| Input Z | >10¹² Ω - prevents loading of high-Z pH electrodes, piezoelectric sensors, and thermocouples |
| CMRR | 65–87 dB - rejects common-mode noise in 4–20 mA loop-powered transmitter PCB layouts |
| SR | 0.03 V/µs - sufficient for DC–5 kHz signal conditioning without slew-induced distortion |
| AVD | 50–480 V/mV - provides ≥100 dB open-loop gain for stable closed-loop configurations up to G = 100 |
Pinout & Package
Package: SOIC-8 (D package), 3.9 mm × 4.9 mm, surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for reference or sensor signal; accepts voltages down to −0.2 V |
| 1IN− | Inverting input, Channel 1 | Feedback node for closed-loop configuration; matched to 1IN+ for common-mode rejection |
| 1OUT | Output, Channel 1 | Rail-to-rail capable: swings to within 50 mV of GND and 0.9 V below VDD at light load |
| GND | Ground / negative supply | Reference for both channels; must be low-impedance to minimize PSRR degradation |
| 2IN+ | Noninverting input, Channel 2 | Independent high-Z input for second sensor or reference path; same specs as 1IN+ |
| 2IN− | Inverting input, Channel 2 | Separate feedback node; no crosstalk with Channel 1 per datasheet characterization |
| 2OUT | Output, Channel 2 | Independent output; usable for dual-path signal processing or redundancy |
| VDD | Positive supply | Accepts 4–16 V; decoupling capacitor required at pin for stability per Figure 6-1 test circuit |
Key Features
| Feature | Design Value |
|---|---|
| Input offset voltage drift | 0.1 µV/month - ensures calibration stability over multi-year field deployment without recalibration |
| Latch-up immunity | Designed-in - eliminates risk of destructive latch-up during power sequencing or transient events |
| ESD protection | 2000 V HBM - meets IEC 61000-4-2 Level 2 for robust handling in manufacturing and field service |
| Single-supply operation | Valid from 4 V - enables direct interface with 3.3 V or 5 V microcontrollers without level-shifting |
| LinCMOS™ process | Superior VIO stability vs metal-gate - avoids drift degradation seen in older op-amps after temperature cycling |
Applications
| Pressure Transmitter | Smoke Detector |
|---|---|
Use Scenario: Amplifies mV-level output from piezoresistive pressure sensors in HVAC and industrial process control. IC Role / Device Role / Timing Role: Precision first-stage gain block with offset trimming capability and low thermal drift. Use Value: 1 mV VIO and 1 µV/°C tempco reduce span error to <0.1% FS over −40°C to +85°C ambient. | Use Scenario: Conditions ionization chamber current in residential and commercial smoke alarms. IC Role / Device Role / Timing Role: Ultra-low-input-bias-current transimpedance amplifier converting pA-level chamber current to voltage. Use Value: 0.6 pA typical IIB minimizes dark-current error, extending battery life and false-alarm immunity. |
| Flow Transmitter | Temperature Transmitter |
Use Scenario: Interfaces with magnetic flow meter coils to amplify induced voltage proportional to fluid velocity. IC Role / Device Role / Timing Role: Low-noise, high-CMRR differential receiver rejecting common-mode interference from motor drives. Use Value: 87 dB CMRR suppresses 50/60 Hz pickup in factory-floor installations with shared grounding. | Use Scenario: Amplifies RTD or thermistor bridge outputs in 4–20 mA loop-powered temperature sensors. IC Role / Device Role / Timing Role: Rail-to-rail output stage driving DAC reference or current-sense resistor. Use Value: Output swing to GND enables full-scale utilization of 0–5 V ADC inputs without negative supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L7CP | PDIP-8 package; 0°C to 70°C temp range; identical electrical specs | Prototyping and lab use only; not rated for industrial ambient extremes | Select TLC27L7CP only for bench validation where extended temperature operation is unnecessary |
| TLV2772ID | Higher supply current (1.3 mA), rail-to-rail I/O, 10 MHz GBW, but 2.5 mV VIO max | Better dynamic performance for active filtering; less precise DC accuracy | Choose TLV2772ID when bandwidth >100 kHz or rail-to-rail input is required; accept higher power and lower precision |
Compared with TLC27L7CP, the TLC27L7ID offers industrial temperature range and SOIC-8 footprint for automated assembly; versus TLV2772ID, it trades bandwidth and rail-to-rail input for 2.5× lower VIO and 40× lower quiescent current - prioritizing precision and energy efficiency over speed.
Availability
TLC27L7ID is available at Aetrix Electronics and suitable for pressure transmitters, smoke detectors, flow transmitters, and temperature transmitters requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for TLC27L7ID 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-amp design and industrial-grade reliability.
The TLC27Lx family was engineered for low-power, high-precision sensor signal conditioning in harsh environments - targeting field instrumentation, safety-critical detection systems, and battery-operated remote monitoring devices.
FAQ
What is the maximum operating temperature range for the TLC27L7ID?
The TLC27L7ID is characterized for operation from −40°C to +85°C, matching the I-suffix industrial temperature grade. This range is validated per Section 5.3 of the datasheet and supports deployment in outdoor enclosures, factory floors, and uncontrolled ambient environments where thermal cycling occurs.
Does the TLC27L7ID support true single-supply operation with inputs below ground?
Yes, the TLC27L7ID supports common-mode input voltages down to −0.2 V at VDD = 5 V, as specified in Section 5.3. This allows direct interfacing with sensors whose output references below the system ground - such as grounded thermocouples or biased bridge circuits - without external level-shifting circuitry.
What is the typical supply current consumption of the TLC27L7ID at 5 V?
The TLC27L7ID draws 34 µA typical supply current (two amplifiers) at VDD = 5 V and TA = 25°C, per Section 5.4 Electrical Characteristics. At −40°C, it increases to 31 µA; at +85°C, it decreases to 15 µA - confirming ultra-low power suitability for always-on sensing nodes.
Is the TLC27L7ID pin-compatible with other TLC27Lx variants in SOIC-8?
Yes, all TLC27Lx dual op-amps in the D (SOIC-8) package - including TLC27L2ID, TLC27L2AID, TLC27L2BID, and TLC27L7ID - share identical pinout and footprint per Figure 4-1 and Table 4-1. This enables drop-in replacement during design iteration or calibration grade upgrades without PCB revision.
How does the input offset voltage of the TLC27L7ID compare to the TLC27L2 series?
The TLC27L7ID has a maximum input offset voltage of 1000 µV (1 mV) at 25°C, whereas the base TLC27L2ID is rated at 10 mV max. This 10× improvement enables higher-resolution measurements in precision analog front-ends, especially in low-gain configurations where offset dominates total error budget.
TLC27L7ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 170 µV
- Current - Supply:
- 20µA (x2 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:
- 8-SOIC
TLC27L7ID FAQ
1.How can I place an order for TLC27L7ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L7ID 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 TLC27L7ID reliable?
The price and inventory of TLC27L7ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L7ID is usually 5 days.
3.What payment methods are accepted for TLC27L7ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L7ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L7ID?
TLC27L7ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L7ID 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 TLC27L7ID?
For technical support, including TLC27L7ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L7ID requirements.
6.How does Aetrix verify that TLC27L7ID is sourced from the original manufacturer or authorized distributors?
All TLC27L7ID 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 TLC27L7ID meets industry standards.
7.What is the process for return or replacement of TLC27L7ID?
All TLC27L7ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L7ID, 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 TLC27L7ID part is unused and in its original packaging.
Return procedure for TLC27L7ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L7ID Tags
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