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Texas Instruments TLV2186IDR
- Part No.:
- TLV2186IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2186IDR.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:939
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Product details
Overview
TLV2186IDR from Texas Instruments is a dual-channel, precision zero-drift operational amplifier optimized for high-side current shunt monitoring and low-power instrumentation. It delivers 10 µV typical input offset voltage, 0.1 µV/°C drift, 750 kHz gain-bandwidth, rail-to-rail input/output swing, and operates from 4.5 V to 24 V supply. Used in electricity meters and pressure transmitters where long-term DC accuracy and thermal stability are critical.
For engineers reviewing the TLV2186IDR datasheet, TLV2186IDR pinout, TLV2186IDR application, or TLV2186IDR equivalent, this page provides verified specifications, SOIC-8 package details, real-world use cases in battery-powered sensing and industrial power monitoring, and validated alternative parts with documented functional trade-offs.
Technical Context
The TLV2186IDR implements a chopper-stabilized zero-drift architecture with integrated notch filtering to eliminate 1/f noise and achieve near-zero drift over –40°C to +125°C. Its rail-to-rail input extends 200 mV beyond supply rails, enabling direct high-side sensing at the positive rail without level-shifting circuitry.
It features phase-reversal protection, EMI rejection ratio (EMIRR) exceeding 95 dB at 5 GHz, and MUX-friendly inputs tolerant of fast input transients. The dual amplifier core shares a common substrate but maintains >120 dB channel separation at 1 kHz, supporting independent signal paths in compact designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV typical - enables sub-0.01% error in 100-mV shunt voltage measurements without calibration. |
| Offset Drift | ±0.1 µV/°C - ensures <1 µV total drift across –40°C to +125°C, critical for unattended industrial metering. |
| Supply Range | 4.5 V to 24 V single supply - supports direct interface with 12-V and 24-V industrial bus systems. |
| Gain-Bandwidth | 750 kHz - sufficient for closed-loop control loops up to ~75 kHz with unity-gain stability. |
| Quiescent Current | 90 µA per amplifier - allows continuous operation in battery-powered flow transmitters for >10 years on AA cells. |
| CMRR | 126 dB at ±12 V - rejects common-mode interference in noisy DC/DC converter environments. |
| EMIRR (+IN) | 95.5 dB at 5 GHz - suppresses RF rectification artifacts from Wi-Fi/Bluetooth co-location in smart meters. |
Pinout & Package
TLV2186IDR is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.90 mm body size, with exposed pad not present. Pin functions are electrically isolated per channel and support independent configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Output channel A | Amplified, rail-to-rail output driving feedback network or ADC input; capable of sourcing/sinking ±20 mA. |
| 2: –IN A | Inverting input channel A | High-impedance node for feedback connection; accepts common-mode voltages up to (V+) + 0.2 V. |
| 3: +IN A | Noninverting input channel A | Primary sensor interface point; EMI-filtered and phase-reversal protected for robust high-side shunt sensing. |
| 4: V– | Negative supply | Ground reference for single-supply operation or negative rail in dual-supply mode; connects to thermal pad in WSON variant (not applicable to TLV2186IDR). |
| 5: +IN B | Noninverting input channel B | Independent analog input for second sensor path; MUX-friendly with low charge injection during switching. |
| 6: –IN B | Inverting input channel B | Feedback node for channel B; electrically isolated from channel A to prevent crosstalk-induced measurement error. |
| 7: OUT B | Output channel B | Second precision output; supports differential output configurations or independent signal conditioning. |
| 8: V+ | Positive supply | 24-V tolerant rail; internal ESD protection includes TVS diodes and current-steering clamps per TI SBOS947A. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supply rails | Accepts common-mode voltage from (V–) – 0.2 V to (V+) + 0.2 V - eliminates need for external level shifters in high-side current sensing. |
| Zero-drift chopper architecture | 0.1 µV/°C max drift and 10 µV max offset - achieves stable DC gain over full automotive temperature range without recalibration. |
| EMI rejection ratio (EMIRR) | 95.5 dB at 5 GHz - prevents RF-induced offset shifts in wireless-enabled metering applications operating near 5-GHz Wi-Fi bands. |
| Phase-reversal protection | Output saturates to correct rail instead of inverting when input exceeds linear CM range - avoids catastrophic control loop reversal in safety-critical PSU monitoring. |
| MUX-friendly inputs | Low charge injection and fast settling after input step - enables time-division multiplexing of multiple sensors into single TLV2186IDR package. |
Applications
| Electricity Metering | High-Side Current Monitoring |
|---|---|
|
Use Scenario: Precision energy measurement in Class 0.2 static electricity meters with 24-V auxiliary supply and CT/shunt-based current sensing. IC Role / Device Role / Timing Role: Dual-channel op amp performing simultaneous voltage scaling and high-side shunt amplification for metrology ADC front-end. Use Value: 10 µV offset and 0.1 µV/°C drift ensure <0.005% gain error contribution over 20-year field life, meeting IEC 62053-21 requirements. |
Use Scenario: Real-time current monitoring in 24-V merchant DC/DC converters for overcurrent protection and efficiency optimization. IC Role / Device Role / Timing Role: High-precision current sense amplifier interfacing directly to the positive rail of a synchronous buck converter's high-side MOSFET. Use Value: Rail-to-rail input extending beyond V+ enables direct Kelvin connection to shunt without external biasing, reducing component count by two resistors per channel. |
| Pressure Transmitter Signal Conditioning | Battery-Powered Flow Transmitter |
|
Use Scenario: Analog signal conditioning in 4–20 mA HART-enabled industrial pressure transmitters powered from loop or local 12-V supply. IC Role / Device Role / Timing Role: Dual op amp providing bridge excitation buffering and ratiometric sensor output amplification before 16-bit sigma-delta ADC. Use Value: 750 kHz GBW and 0.35 V/µs slew rate support 100-Hz sensor bandwidth with <1-µs group delay variation, preserving dynamic response fidelity. |
Use Scenario: Ultra-low-power signal chain in ultrasonic flow meters powered by two AA alkaline cells with 10-year battery life target. IC Role / Device Role / Timing Role: Low-quiescent-current dual amplifier conditioning piezoelectric transducer signals and driving SAR ADC reference buffers. Use Value: 90 µA per amplifier enables continuous wake-up mode operation while maintaining <1 µV RMS noise floor, essential for sub-0.5% flow accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AIDR | Higher quiescent current (410 µA vs 90 µA); lower offset drift (0.003 µV/°C); same 750-kHz GBW and rail-to-rail IO. | Better for lab-grade instrumentation requiring ultra-low drift; unsuitable for multi-year battery operation due to 4.5× higher IQ. | Select OPA2188AIDR only when drift budget is tighter than ±0.03 µV over temperature and power is not constrained. |
| AD8629ARZ-REEL7 | Lower GBW (2.5 MHz); higher offset (25 µV max); same zero-drift architecture and 24-V supply rating. | Suitable for higher-speed active filters but adds 15 µV initial error - requires system-level calibration to match TLV2186IDR's factory-trimmed accuracy. | Choose AD8629ARZ-REEL7 when bandwidth >750 kHz is required and offset calibration infrastructure already exists. |
Compared with OPA2188AIDR and AD8629ARZ-REEL7, TLV2186IDR uniquely balances ultra-low drift (0.1 µV/°C), micropower operation (90 µA), and 24-V tolerance in a cost-optimized SOIC-8 package - making it the optimal choice for long-life, high-accuracy industrial sensing where both power and precision are simultaneously constrained.
Availability
TLV2186IDR is available at Aetrix Electronics and suitable for electricity metering, high-side current monitoring, and battery-powered flow transmitter applications requiring stable component supply across extended product lifecycles.
Supply support for TLV2186IDR 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The TLV2186IDR belongs to TI's zero-drift operational amplifier product line, engineered specifically for high-accuracy, low-power industrial sensing and energy measurement applications demanding long-term DC stability without calibration.
FAQ
What is the maximum supply voltage for TLV2186IDR?
The TLV2186IDR supports a maximum supply voltage of 24 V (single supply) or ±12 V (dual supply), with absolute maximum rating of 26 V between V+ and V– pins. Operation above 24 V risks permanent damage per TI SBOS947A Absolute Maximum Ratings table.
Does TLV2186IDR support true rail-to-rail input beyond the supply rails?
Yes - TLV2186IDR accepts input common-mode voltages from (V–) – 0.2 V to (V+) + 0.2 V, enabling direct high-side shunt sensing at the positive rail without external bias networks. This capability is explicitly specified in Section 6.5 of the TLV2186IDR datasheet.
Is TLV2186IDR pin-compatible with other devices in the TLV218x family?
No - TLV2186IDR uses an 8-pin SOIC package with dedicated dual-channel pinout (e.g., +IN B on pin 5). It is not pin-compatible with TLV2182 (single-channel, 8-pin SOIC) or TLV2186 with WSON-8 packaging, which relocates thermal pad and alters pin assignments per TI package addendum.
What is the typical input bias current of TLV2186IDR?
The typical input bias current of TLV2186IDR is 0.1 nA at 25°C, rising to 0.6 nA over –40°C to +85°C and 5 nA over –40°C to +125°C. These values are measured per Section 6.5 Electrical Characteristics in the official TI datasheet SBOS947A.
Can TLV2186IDR drive capacitive loads without instability?
TLV2186IDR is unity-gain stable but exhibits increasing overshoot with capacitive loads >100 pF. Figure 24 and Figure 25 in SBOS947A show 25-Ω series isolation resistor (RISO) restores stability for loads up to 1 nF. For >100-pF loads, RISO ≥25 Ω is required to maintain phase margin >45°.
TLV2186IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.35V/µs
- Gain Bandwidth Product:
- 750 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 90µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2186IDR FAQ
1.How can I place an order for TLV2186IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2186IDR 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 TLV2186IDR reliable?
The price and inventory of TLV2186IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2186IDR is usually 5 days.
3.What payment methods are accepted for TLV2186IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2186IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2186IDR?
TLV2186IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2186IDR 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 TLV2186IDR?
For technical support, including TLV2186IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2186IDR requirements.
6.How does Aetrix verify that TLV2186IDR is sourced from the original manufacturer or authorized distributors?
All TLV2186IDR 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 TLV2186IDR meets industry standards.
7.What is the process for return or replacement of TLV2186IDR?
All TLV2186IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2186IDR, 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 TLV2186IDR part is unused and in its original packaging.
Return procedure for TLV2186IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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