My Inquiry
My Account
Texas Instruments TLV27L2CDGKR
- Part No.:
- TLV27L2CDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV27L2CDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,245
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV27L2CDGKR from Texas Instruments is a dual-channel micropower rail-to-rail output operational amplifier designed for ultra-low-power signal conditioning in battery-operated systems. It delivers 160 kHz gain-bandwidth, 0.06 V/μs slew rate, 7 μA per channel quiescent current, and operates from 2.7 V to 16 V supply. It is used in portable medical sensors and low-power smoke detectors where precision output swing near supply rails is critical.
For engineers reviewing the TLV27L2CDGKR datasheet, TLV27L2CDGKR pinout, TLV27L2CDGKR application, or TLV27L2CDGKR equivalent, key selection criteria include its 8-pin VSSOP (DGK) package, −40°C to 125°C industrial temperature range, rail-to-rail output swing within 50 mV of rails at ±5 V, input bias current of 1 pA, and compatibility with single-supply sensor front-ends requiring minimal power overhead.
Technical Context
The TLV27L2CDGKR employs BiMOS input stage architecture enabling 1 pA input bias current and rail-to-rail output swing via complementary MOS output transistors. 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 below 15 μA total for both channels.
It supports single-supply operation from 2.7 V (e.g., two alkaline cells) up to 16 V, with input common-mode range extending from −0.2 V to VS+1.2 V and output swing within 50 mV of each rail under ±5 V conditions. The device is specified across the full industrial temperature range and exhibits 89 nV/√Hz input voltage noise at 1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - enables direct operation from two AA/AAA cells (3 V) or 12-V industrial rails without regulation. |
| Quiescent Current (per channel) | 7 μA typical - allows dual-channel operation under 15 μA, ideal for multi-year battery life in wireless sensor nodes. |
| Gain-Bandwidth Product | 160 kHz - sufficient for DC–100 Hz biosignal amplification (ECG, pulse oximetry) with stable unity-gain configuration. |
| Input Bias Current | 1 pA - minimizes error in high-impedance pH, ion-selective, or photodiode transimpedance front-ends. |
| Output Swing (vs. Rail) | 50 mV at ±5 V - delivers full dynamic range when interfacing with 10-bit ADCs referenced to same supply. |
| Input Noise Voltage | 89 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level signals from thermopiles or strain gauges. |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive, industrial control, and outdoor environmental monitoring. |
Pinout & Package
The TLV27L2CDGKR is housed in an 8-pin VSSOP (DGK) package measuring 3.0 mm × 3.0 mm × 1.0 mm, optimized for space-constrained PCB layouts while maintaining SOIC-compatible pin spacing and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Channel 1 output | Delivers rail-to-rail voltage swing; drives ADC input or filter network with <50 mV headroom at ±5 V. |
| 2 (IN−1) | Inverting input, Channel 1 | High-impedance node (1 pA bias); connects to feedback network or sensor bridge leg. |
| 3 (IN+1) | Non-inverting input, Channel 1 | Accepts low-level sensor signal; common-mode range extends to −0.2 V and VS+1.2 V. |
| 4 (GND) | Analog ground reference | Single ground return for both channels; requires dedicated low-inductance connection to PCB ground plane. |
| 5 (IN+2) | Non-inverting input, Channel 2 | Independent input for second sensor path; electrically isolated from Channel 1 except shared supply and ground. |
| 6 (IN−2) | Inverting input, Channel 2 | Supports differential or single-ended configurations; matched offset and bias characteristics to Channel 1. |
| 7 (OUT2) | Channel 2 output | Identical rail-to-rail performance to OUT1; enables dual-sensor readout or signal buffering + filtering. |
| 8 (VDD) | Positive supply rail | Accepts 2.7–16 V; requires local 0.1-μF ceramic decoupling capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC input range without level-shifting circuitry, reducing BOM count and layout area. |
| 1 pA input bias current | Permits use with >100 MΩ source impedances (e.g., glass pH electrodes) without significant offset drift. |
| 7 μA per channel supply current | Allows continuous dual-channel operation on coin-cell batteries (e.g., CR2032) for >5 years in sleep-wake sensing cycles. |
| 160 kHz bandwidth at 7 μA | Provides adequate small-signal response for DC–100 Hz physiological signals while maintaining ultralow power. |
| −40°C to 125°C operating range | Eliminates need for external thermal compensation in automotive cabin modules or industrial motor controllers. |
Applications
| Portable Medical Sensors | Power Monitoring Circuits |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG or EMG signals from dry-electrode wearable patches. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 10-bit SAR ADC sampling. Use Value: 1 pA input bias prevents electrode polarization error; 7 μA/channel enables 7-day continuous logging on a 200 mAh Li-ion cell. |
Use Scenario: Conditioning shunt voltage signals in smart energy meters with Class 0.5 accuracy requirements. IC Role / Device Role / Timing Role: Precision current-sense amplifier driving metrology ADC with minimal offset drift over temperature. Use Value: 5 mV max input offset ensures <0.1% gain error at 100 mV full-scale shunt; rail-to-rail output maximizes SNR into 2.5-V ADC reference. |
| Low-Power Security Detection | Smoke Detector Analog Front-End |
|
Use Scenario: Amplifying piezoelectric vibration signals in tamper-detection systems for access control panels. IC Role / Device Role / Timing Role: High-Z sensor interface with selectable gain and low-noise amplification prior to window comparator triggering. Use Value: 89 nV/√Hz noise floor resolves sub-mV events; 160 kHz bandwidth captures transient impact signatures without aliasing. |
Use Scenario: Signal conditioning for ionization chamber current (pA–nA range) in residential smoke alarms. IC Role / Device Role / Timing Role: Transimpedance amplifier converting chamber current to measurable voltage for microcontroller ADC. Use Value: 1 pA input bias avoids loading chamber current; 2.7-V minimum supply allows direct operation from 3-V alkaline battery stack. |
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 |
|---|---|---|---|
| TLV2382IDGKR | Higher 10 μA IQ, 160 kHz GBW, 90 nV/√Hz noise, same VSSOP-8 package and −40°C to 125°C rating. | Better PSRR (82 dB vs. 74 dB) and CMRR (86 dB vs. 71 dB), but higher noise limits use in ultra-low-level sensor apps. | Select when improved rejection of supply/CM interference outweighs marginal noise penalty and 3 μA extra per channel. |
| TLC2252CDR | 62.5 μA IQ, 200 kHz GBW, 19 nV/√Hz noise, SOIC-8 only, 0°C to 70°C commercial temp range. | Lower noise and higher speed suit precision industrial analog, but 9× higher supply current precludes battery use. | Choose for mains-powered test equipment needing lower noise and wider bandwidth, not for energy-constrained designs. |
Compared with TLV2382IDGKR and TLC2252CDR, the TLV27L2CDGKR uniquely balances sub-10 μA power, rail-to-rail output, and 1 pA bias for long-life portable sensing-neither alternative matches this combination of ultra-low IQ and high-impedance interface capability.
Availability
TLV27L2CDGKR is available at Aetrix Electronics and suitable for portable medical devices, industrial power monitors, and battery-powered safety systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLV27L2CDGKR 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 design.
The TLV27L2CDGKR belongs to TI's micropower rail-to-rail op-amp product line, engineered specifically for battery-powered instrumentation, sensor interfaces, and energy-harvesting systems demanding nanoscale bias currents and rail-swing fidelity.
FAQ
What is the maximum supply voltage for TLV27L2CDGKR?
The absolute maximum supply voltage for TLV27L2CDGKR is 16.5 V, but the recommended operating range is 2.7 V to 16 V. Operation above 16 V risks permanent damage. At 16 V, the device maintains rail-to-rail output swing and 7 μA per channel quiescent current, making it suitable for 12-V industrial rails with margin.
Does TLV27L2CDGKR support true rail-to-rail input?
No, TLV27L2CDGKR features rail-to-rail *output* only. Its input common-mode voltage range is −0.2 V to VS+1.2 V, which exceeds the supply rails but does not reach full rail-to-rail input. For example, at VS = 5 V, inputs operate from −0.2 V to +6.2 V - sufficient for most single-supply sensor interfaces but not for direct 0–5 V input without level shift.
What is the input offset voltage specification for TLV27L2CDGKR?
The TLV27L2CDGKR has a maximum input offset voltage of 7 mV across the full −40°C to 125°C temperature range, with a typical value of 5 mV at 25°C. This is confirmed in the "electrical characteristics" table under "Input offset voltage" with test condition VIC = VS/2 and VO = VS/2. Offset drift is 1.1 μV/°C typical.
Can TLV27L2CDGKR drive capacitive loads directly?
TLV27L2CDGKR is stable with up to 50 pF capacitive load when configured for unity gain, as verified by phase margin measurements (62° at 25°C). Driving >50 pF requires isolation resistor (e.g., 10–100 Ω) between output and load to prevent peaking or oscillation - critical for ADC input filtering or cable-driven outputs.
Is TLV27L2CDGKR pin-compatible with other VSSOP-8 op-amps?
TLV27L2CDGKR uses standard VSSOP-8 pinout (1–8: OUT1, IN−1, IN+1, GND, IN+2, IN−2, OUT2, VDD), matching industry conventions for dual op-amps. However, it is not a drop-in replacement for all VSSOP-8 dual op-amps due to differences in bias current, noise, and supply current - verify electrical compatibility before substitution.
TLV27L2CDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TLV27L2CDGKR FAQ
1.How can I place an order for TLV27L2CDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV27L2CDGKR 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 TLV27L2CDGKR reliable?
The price and inventory of TLV27L2CDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV27L2CDGKR is usually 5 days.
3.What payment methods are accepted for TLV27L2CDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV27L2CDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV27L2CDGKR?
TLV27L2CDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV27L2CDGKR 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 TLV27L2CDGKR?
For technical support, including TLV27L2CDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV27L2CDGKR requirements.
6.How does Aetrix verify that TLV27L2CDGKR is sourced from the original manufacturer or authorized distributors?
All TLV27L2CDGKR 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 TLV27L2CDGKR meets industry standards.
7.What is the process for return or replacement of TLV27L2CDGKR?
All TLV27L2CDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV27L2CDGKR, 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 TLV27L2CDGKR part is unused and in its original packaging.
Return procedure for TLV27L2CDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV27L2CDGKR 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…
