My Inquiry
My Account
Texas Instruments TLV27L2CDGK
- Part No.:
- TLV27L2CDGK
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV27L2CDGK.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:212
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV27L2CDGK from Texas Instruments is a dual-channel micropower rail-to-rail output operational amplifier designed for ultra-low-power sensor signal conditioning and battery-powered instrumentation. It delivers 160 kHz gain-bandwidth, 0.1 V/μs slew rate, 7 μA per channel quiescent current, 5 mV input offset voltage, and operates from 2.7 V to 16 V supply across −40°C to 125°C. It is used in portable medical devices and low-power security detection systems.
For engineers reviewing the TLV27L2CDGK datasheet, TLV27L2CDGK pinout, TLV27L2CDGK application, or TLV27L2CDGK equivalent, key selection criteria include its rail-to-rail output swing at micropower consumption, industrial temperature range support, VSSOP-8 package footprint, and compatibility with single-supply 2.7 V systems requiring high input impedance and low noise.
Technical Context
The TLV27L2CDGK employs BiMOS input stage architecture enabling 1 pA typical input bias current and rail-to-rail output swing within 50 mV of each rail at light loads. Its 160 kHz unity-gain bandwidth is achieved with only 7 μA per channel supply current, making it suitable for continuous-sensing applications where power budget is constrained.
It features a wide input common-mode voltage range (−0.2 V to VS+1.2 V), 89 nV/√Hz input voltage noise at 1 kHz, and maintains stable operation with capacitive loads up to 50 pF without external compensation-enabling direct interface with ADC drivers and precision transducer front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports single-cell LiFePO₄ (2.8–3.6 V) and dual alkaline (2.7–3.2 V) battery operation without regulation. |
| Quiescent Current (per channel) | 7 μA - enables >1-year battery life in always-on smoke detector signal chains using CR2032 cells. |
| Gain-Bandwidth Product | 160 kHz - sufficient for DC–100 Hz physiological signal amplification (ECG, pulse oximetry) with ≥40 dB closed-loop gain. |
| Input Offset Voltage | 5 mV max - ensures ≤0.5% full-scale error in 1 V reference-based current-sense amplifiers with 100 Ω shunt. |
| Input Bias Current | 1 pA typ - preserves signal integrity in high-impedance pH electrode and piezoelectric sensor interfaces. |
| Output Voltage Swing | Within 50 mV of rails (VS = 5 V, IOL = 100 μA) - maximizes dynamic range when driving SAR ADCs with 0–VREF input ranges. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive power monitoring and industrial process control environments. |
Pinout & Package
VSSOP-8 (DGK) package: 3 mm × 3 mm body, 0.65 mm pitch, exposed pad optional, JEDEC MO-178AC compliant. Thermal resistance θJA = 260°C/W on low-K test PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Channel A output | Delivers rail-to-rail voltage with 100 mA short-circuit current limit; requires local 0.1 μF ceramic decoupling. |
| 2 (IN− A) | Channel A inverting input | High-impedance node; trace length must be minimized to reduce stray capacitance and maintain phase margin. |
| 3 (IN+ A) | Channel A non-inverting input | Accepts common-mode signals from −0.2 V to VS+1.2 V; compatible with sensors referenced to ground or mid-supply. |
| 4 (GND) | Analog ground reference | Shared return path for both channels; must connect directly to solid ground plane beneath device. |
| 5 (IN+ B) | Channel B non-inverting input | Independent high-Z input; usable for differential pair configuration or separate sensor channel. |
| 6 (IN− B) | Channel B inverting input | Matches Channel A electrical characteristics; supports matched feedback networks for dual-channel filtering. |
| 7 (OUT B) | Channel B output | Electrically identical to Pin 1; crosstalk < −40 dB at 10 kHz enables simultaneous dual-signal processing. |
| 8 (VDD) | Positive supply rail | Accepts 2.7–16 V; requires parallel 6.8 μF tantalum + 0.1 μF ceramic decoupling at entry point. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC input range in single-supply data acquisition systems without level-shifting circuitry. |
| 1 pA input bias current | Preserves accuracy in high-source-impedance applications such as electrochemical gas sensors and photodiode transimpedance stages. |
| 7 μA per channel supply current | Reduces thermal drift and self-heating in densely packed PCB layouts while extending battery service life. |
| 160 kHz bandwidth at micropower | Supports closed-loop gain ≥100 for low-frequency biosignal amplification without compromising power efficiency. |
| −40°C to +125°C operation | Eliminates need for external temperature compensation in industrial power monitoring modules deployed in uncontrolled enclosures. |
Applications
| Portable Medical Devices | Power Monitoring Systems |
|---|---|
Use Scenario: Amplifying microvolt-level ECG signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 7 μA per channel current draw extends CR2032 battery life beyond 18 months in continuous monitoring mode. | Use Scenario: Sensing shunt voltage in solar charge controllers to calculate real-time battery current and state-of-charge. IC Role / Device Role / Timing Role: Precision current-sense amplifier with matched dual channels for differential shunt measurement and offset cancellation. Use Value: 5 mV max VIO ensures <0.5% measurement error over full temperature range without calibration. |
| Low-Power Security Sensors | Smoke Detectors |
Use Scenario: Conditioning piezoelectric vibration signals from door/window contact sensors in battery-powered alarm panels. IC Role / Device Role / Timing Role: High-input-impedance AC-coupled amplifier with adjustable gain and low-noise signal conditioning prior to comparator threshold detection. Use Value: 1 pA input bias current prevents signal attenuation in high-Z piezo elements, preserving sensitivity to sub-millig acceleration events. | Use Scenario: Amplifying ionization chamber current (fA–pA range) in residential smoke alarms powered by 9 V alkaline batteries. IC Role / Device Role / Timing Role: Ultra-low-IQ transimpedance amplifier converting chamber current to measurable voltage for microcontroller ADC sampling. Use Value: 7 μA total supply current (both channels) allows >5 years of standby operation on a single 9 V battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2372IDR | Higher IQ (20 μA/ch), wider GBW (1 MHz), same VSSOP-8 package and rail-to-rail output. | Better for higher-speed sensor interfaces (e.g., ultrasonic distance sensing) but reduces battery life by ~3×. | Select when bandwidth >500 kHz is required and power budget permits. |
| OPA2349EA/250 | Lower IQ (1 μA/ch), narrower GBW (70 kHz), SC70-8 package (smaller than VSSOP-8), 1.8–5.5 V supply range. | Optimized for sub-3 V coin-cell systems (e.g., Bluetooth LE sensors); not rated for 125°C operation. | Select for space-constrained, ultra-low-voltage (<3 V) designs where 160 kHz bandwidth is excessive. |
Compared with TLV2372IDR and OPA2349EA/250, the TLV27L2CDGK uniquely balances 160 kHz bandwidth, 7 μA/ch quiescent current, and −40°C to +125°C rating in VSSOP-8-making it optimal for industrial-grade, battery-operated signal conditioning where thermal robustness and moderate speed coexist.
Availability
TLV27L2CDGK is available at Aetrix Electronics and suitable for portable medical devices, power monitoring systems, and low-power security detection systems requiring stable component supply and long-term industrial temperature support.
Supply support for TLV27L2CDGK 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 expertise in precision amplifiers and low-power signal chain solutions.
The TLV27L2CDGK belongs to TI's micropower rail-to-rail op-amp product line, engineered specifically for battery-powered instrumentation, environmental sensors, and industrial monitoring systems demanding extended runtime and wide-temperature reliability.
FAQ
What is the maximum recommended supply voltage for TLV27L2CDGK?
The TLV27L2CDGK has an absolute maximum supply voltage of 16.5 V, with a recommended operating range of 2.7 V to 16 V. Operation above 16 V risks permanent damage. At 16 V, the device supports ±8-V dual-supply configurations or high-voltage single-ended sensor interfaces while maintaining rail-to-rail output swing and 7 μA per channel quiescent current.
Does TLV27L2CDGK support rail-to-rail input common-mode voltage?
No, TLV27L2CDGK does not support rail-to-rail input. Its specified input common-mode voltage range is −0.2 V to VS−1.2 V, meaning the inputs must remain at least 1.2 V below the positive rail. However, its rail-to-rail output capability allows full-swing signal delivery to downstream ADCs or comparators, distinguishing it from legacy TLC27Lx predecessors.
What is the thermal performance of TLV27L2CDGK in VSSOP-8 package?
In the VSSOP-8 (DGK) package, TLV27L2CDGK has a junction-to-ambient thermal resistance (θJA) of 260°C/W on a low-K test PCB. At 25°C ambient and full 14 μA total supply current, self-heating is negligible (<4°C). Derating begins above 85°C ambient, with maximum power dissipation dropping from 710 mW at 25°C to 370 mW at 85°C per the SOIC-8 dissipation table-though VSSOP-8 uses its own 260°C/W curve.
Can TLV27L2CDGK drive capacitive loads without oscillation?
Yes, TLV27L2CDGK remains stable with capacitive loads up to 50 pF when configured as a unity-gain buffer, as confirmed by phase margin measurements ≥62° at 25°C. For loads exceeding 50 pF, a series resistor (≥100 Ω) between output and capacitor is recommended to isolate the reactive load and preserve stability in ADC driver or filter applications.
Is TLV27L2CDGK pin-compatible with other members of the TLV27Lx family?
Yes, TLV27L2CDGK shares identical pinout with TLV27L2CDR (SOIC-8) and TLV27L2IDGKR (VSSOP-8), including OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, and VDD assignments. This enables drop-in replacement between packages without PCB redesign-critical for cost-optimized manufacturing transitions from SOIC to space-saving VSSOP footprints.
TLV27L2CDGK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.06V/µs
- Gain Bandwidth Product:
- 160 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 7µA (x2 Channels)
- Current - Output / Channel:
- 400 µA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV27L2CDGK FAQ
1.How can I place an order for TLV27L2CDGK through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV27L2CDGK 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 TLV27L2CDGK reliable?
The price and inventory of TLV27L2CDGK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV27L2CDGK is usually 5 days.
3.What payment methods are accepted for TLV27L2CDGK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV27L2CDGK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV27L2CDGK?
TLV27L2CDGK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV27L2CDGK 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 TLV27L2CDGK?
For technical support, including TLV27L2CDGK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV27L2CDGK requirements.
6.How does Aetrix verify that TLV27L2CDGK is sourced from the original manufacturer or authorized distributors?
All TLV27L2CDGK 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 TLV27L2CDGK meets industry standards.
7.What is the process for return or replacement of TLV27L2CDGK?
All TLV27L2CDGK units undergo pre-shipment inspection (PSI). If there is an issue with TLV27L2CDGK, 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 TLV27L2CDGK part is unused and in its original packaging.
Return procedure for TLV27L2CDGK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV27L2CDGK 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…
