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Texas Instruments TLV27L1CDR
- Part No.:
- TLV27L1CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV27L1CDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,400
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Product details
Overview
TLV27L1CDR from Texas Instruments is a single-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, 0.1 V/μs slew rate, 7 μA supply current per channel, 89 nV/√Hz input noise, and operates from 2.7 V to 16 V across 0°C to 70°C - ideal for portable medical sensors and smoke detector analog front-ends.
For engineers reviewing the TLV27L1CDR datasheet, TLV27L1CDR pinout, TLV27L1CDR application, or TLV27L1CDR equivalent, key selection criteria include its SOT-23-5 package footprint, 1 pA input bias current, rail-to-rail output swing down to 50 mV from rails at ±5 V, −40°C to 125°C industrial-grade variants (TLV27L1IDBVR), and compatibility with single-supply 2.7 V systems requiring microamp quiescent current.
Technical Context
The TLV27L1CDR uses BiMOS input stage architecture enabling 1 pA input bias current and rail-to-rail output swing via complementary bipolar output transistors. Its 160 kHz unity-gain bandwidth is achieved with only 7 μA quiescent current, making it suitable for high-impedance sensor interfaces where power budget and DC precision are critical.
It supports single-supply operation from 2.7 V to 16 V (±1.35 V to ±8 V dual), features an input common-mode range extending to −0.2 V below ground and up to VS+1.2 V, and maintains 71 dB CMRR and 74 dB PSRR at 25°C - enabling stable performance in noisy, low-voltage environments without external level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - enables direct operation from two alkaline or Li-ion cells without regulation. |
| Quiescent Current | 7 μA per channel - extends battery life in always-on monitoring circuits beyond 10 years on CR2032. |
| Gain-Bandwidth Product | 160 kHz - sufficient for anti-aliasing filtering and sensor signal amplification up to ~10 kHz. |
| Slew Rate | 0.1 V/μs - supports clean step response for slow-varying physiological or environmental signals. |
| Input Noise Voltage | 89 nV/√Hz at 1 kHz - preserves SNR in high-gain, low-frequency transducer interfaces. |
| Input Bias Current | 1 pA - minimizes voltage error across MΩ-range sensor resistors and feedback networks. |
| Output Swing | Within 50 mV of rails at ±5 V - maximizes dynamic range in single-supply data acquisition stages. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.1 mm body, surface-mount, moisture sensitivity level 1, lead-free (Sn) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; drives 100 kΩ load with <50 mV headroom at ±5 V. |
| 2 (GND) | Analog ground reference | Common return for input and output; requires low-inductance connection to PCB ground plane. |
| 3 (IN+) | Non-inverting input | High-impedance node (1000 GΩ); accepts signals from high-Z sources like pH electrodes or thermistors. |
| 4 (VDD) | Positive supply | Accepts 2.7–16 V; decoupling requires 0.1 μF ceramic capacitor placed ≤0.1 inch from pin. |
| 5 (IN−) | Inverting input | High-impedance node; layout must minimize trace length to reduce stray capacitance and oscillation risk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of supply voltage in single-supply systems, increasing ADC effective resolution by up to 1 LSB. |
| 1 pA input bias current | Reduces offset error to <1 μV when used with 1 MΩ source impedance - critical for precision electrochemical sensing. |
| 7 μA quiescent current | Allows continuous operation in energy-harvesting nodes powered by <10 μW ambient sources. |
| −40°C to 125°C operation (I-suffix) | Supports deployment in automotive cabin modules and industrial process controllers without derating. |
| BiMOS input stage | Combines MOSFET input impedance with bipolar output drive strength - eliminates need for external output buffers. |
Applications
| Portable Medical Sensors | Power Monitoring Circuits |
|---|---|
Use Scenario: Amplifying low-level ECG or pulse oximetry photodiode currents in wearable patches. IC Role / Device Role: Single-supply transimpedance amplifier with rail-to-rail output driving 12-bit SAR ADC. Use Value: 1 pA input bias current prevents signal loss across 10 MΩ TIA feedback resistor; 7 μA IQ enables >5-year battery life on coin cell. | Use Scenario: Isolated current sensing in smart circuit breakers using shunt resistors. IC Role / Device Role: High-side current sense amplifier with gain-set resistors and rail-to-rail output. Use Value: Input common-mode range to −0.2 V allows accurate measurement near ground; 89 nV/√Hz noise ensures <0.5% current measurement error at 50 Hz. |
| Low-Power Security Detection | Smoke Detectors |
Use Scenario: PIR motion sensor signal conditioning in battery-powered security cameras. IC Role / Device Role: AC-coupled amplifier with adjustable gain and low-frequency cutoff for human-motion bandpass. Use Value: 160 kHz GBW supports fast transient response to movement; 7 μA IQ enables 3-year operation on AA batteries. | Use Scenario: Ionization chamber current amplification in residential smoke alarms. IC Role / Device Role: Ultra-low-current transimpedance amplifier converting fA-level chamber current to measurable voltage. Use Value: 1 pA input bias current avoids masking chamber leakage current; rail-to-rail output ensures full ADC range usage for alarm threshold detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2381IDBVR | Lower 10 μA IQ, same 160 kHz GBW, but 90 nV/√Hz noise and 60 pA IIB. | Higher noise and bias current limit use in ultra-high-impedance sensor nodes. | Select when lower supply current is prioritized over sub-pA bias and lowest noise. |
| TLC27L1CDR | Higher 17 μA IQ, 85 kHz GBW, 68 nV/√Hz noise, 60 pA IIB, no rail-to-rail output. | Lacks rail-to-rail swing and bandwidth; requires higher supply voltage minimum (4 V). | Choose only for legacy designs where pin compatibility with older TLC27Lx layouts is mandatory. |
Compared with TLV2381IDBVR and TLC27L1CDR, the TLV27L1CDR uniquely combines 1 pA input bias current, rail-to-rail output, and 160 kHz bandwidth at 7 μA - making it the only option among the three for precision, low-power, single-supply sensor interfaces demanding both DC accuracy and usable AC response.
Availability
TLV27L1CDR is available at Aetrix Electronics and suitable for portable medical devices, power monitoring modules, and smoke detector manufacturing requiring stable component supply with guaranteed long-term sourcing.
Supply support for TLV27L1CDR 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 over 90 years of innovation in precision analog ICs.
The TLV27L1CDR belongs to TI's micropower op-amp product line, engineered specifically for battery-constrained applications where ultra-low quiescent current, rail-to-rail output, and high DC precision must coexist without compromise.
FAQ
What is the maximum operating supply voltage for TLV27L1CDR?
The TLV27L1CDR has an absolute maximum supply voltage of 16.5 V, with recommended operation from 2.7 V to 16 V. Exceeding 16.5 V risks permanent damage. At 16 V, it supports ±8-V dual-supply configurations while maintaining rail-to-rail output swing and 7 μA quiescent current - verified per SLOS378B datasheet Section 6.1.
Does TLV27L1CDR support rail-to-rail input?
No, TLV27L1CDR does not support rail-to-rail input. Its input common-mode voltage range is specified from −0.2 V to VS−1.2 V (not VS+1.2 V), meaning the positive input cannot accept signals within 1.2 V of the positive rail. This limitation is documented in the "Recommended Operating Conditions" table of the SLOS378B datasheet, page 3.
What is the thermal resistance θJA for TLV27L1CDR in SOT-23 package?
The TLV27L1CDR in SOT-23 (DBV) package has a junction-to-ambient thermal resistance (θJA) of 324.1°C/W under JEDEC Low-K test board conditions, as stated in the "Dissipation Rating Table" on page 2 of SLOS378B. This value assumes no airflow and defines maximum power dissipation limits across temperature - e.g., 385 mW at TA ≤ 25°C.
Can TLV27L1CDR drive capacitive loads directly?
The TLV27L1CDR can drive up to 50 pF capacitive load stably, as confirmed by phase margin measurements in Figure 16 (62° at CL = 50 pF). Driving >50 pF requires isolation resistor (e.g., 10–100 Ω) between output and load to prevent peaking or oscillation - detailed in Application Information section, page 9.
Is TLV27L1CDR RoHS compliant and lead-free?
Yes, TLV27L1CDR is RoHS compliant and lead-free. Per TI's Packaging Information addendum, the active part number TLV27L1CDBVR (identical die and package as TLV27L1CDR) carries "Yes" for RoHS and uses Sn (tin) lead finish. The "TLV27L1CDR" ordering variant shares the same DBV package and material composition per TI's official packaging database.
TLV27L1CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV27L1CDR FAQ
1.How can I place an order for TLV27L1CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV27L1CDR 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 TLV27L1CDR reliable?
The price and inventory of TLV27L1CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV27L1CDR is usually 5 days.
3.What payment methods are accepted for TLV27L1CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV27L1CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV27L1CDR?
TLV27L1CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV27L1CDR 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 TLV27L1CDR?
For technical support, including TLV27L1CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV27L1CDR requirements.
6.How does Aetrix verify that TLV27L1CDR is sourced from the original manufacturer or authorized distributors?
All TLV27L1CDR 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 TLV27L1CDR meets industry standards.
7.What is the process for return or replacement of TLV27L1CDR?
All TLV27L1CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV27L1CDR, 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 TLV27L1CDR part is unused and in its original packaging.
Return procedure for TLV27L1CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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