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Texas Instruments TLV2186IDSGR
- Part No.:
- TLV2186IDSGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TLV2186IDSGR.pdf
- Description:
- IC OPAMP ZER-DRIFT 2CIRC 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,035
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Product details
Overview
TLV2186IDSGR from Texas Instruments is a dual-channel, zero-drift, rail-to-rail input/output operational amplifier optimized for precision DC-coupled signal conditioning in high-side current shunt monitoring and industrial sensor interfaces. It delivers 10 µV typical offset voltage, 0.1 µV/°C drift, 750 kHz gain-bandwidth, 0.35 V/µs slew rate, and operates from 4.5 V to 24 V supply. Its WSON-8 package supports compact, thermally efficient PCB layouts in battery-powered instrumentation and electricity metering.
For engineers reviewing the TLV2186IDSGR datasheet, TLV2186IDSGR pinout, TLV2186IDSGR application, or TLV2186IDSGR equivalent, this page provides verified specifications, validated pin functions, confirmed high-side current sensing capability, real-world application context for flow/pressure transmitters, and two technically documented alternative parts with explicit functional and packaging differences.
Technical Context
The TLV2186IDSGR implements a chopper-stabilized zero-drift architecture with dual-stage modulation (CHOP1/CHOP2) and notch filtering to eliminate 1/f noise and achieve near-zero long-term offset drift. Its rail-to-rail input stage extends common-mode range to (V–) – 0.2 V and (V+) + 0.2 V, enabling direct high-side sensing without level-shifting circuitry.
It integrates EMI rejection filters on both inputs, delivering ≥48.4 dB EMIRR at 400 MHz and ≥95.5 dB at 5 GHz, and features phase-reversal protection that clamps output instead of inverting polarity when inputs exceed common-mode limits. The device is unity-gain stable and MUX-friendly, supporting multiplexed sensor front-ends without settling-time degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset voltage | ±10 µV typical - enables <10 ppm measurement accuracy in 16-bit ADC systems without calibration. |
| Offset drift | ±0.1 µV/°C - ensures <1.5 µV total drift over –40°C to +125°C, critical for uncalibrated field-deployed meters. |
| Supply range | 4.5 V to 24 V - supports single-supply operation in PC PSUs, merchant DC/DC, and 24-V industrial rails. |
| Gain bandwidth | 750 kHz - sufficient for closed-loop control of fast pressure transducers and active filter stages up to 100 kHz. |
| Quiescent current | 90 µA per amplifier - allows dual-opamp precision sensing in battery-powered handheld test equipment. |
| CMRR | 126 dB at ±2.25 V - rejects >99.9997% of common-mode interference in noisy motor-drive environments. |
| Input bias current | 0.1 nA typical - minimizes voltage error across high-impedance sensor bridges (e.g., 100 kΩ RTDs). |
Pinout & Package
TLV2186IDSGR is packaged in an 8-pin WSON (DSG) with 2.00 mm × 2.00 mm body size and exposed thermal pad. The thermal pad must be soldered to a PCB copper pour connected to V– for optimal thermal performance and EMI immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Output channel A | Capable of sourcing/sinking ±20 mA; rail-to-rail swing within 5 mV of rails under no load. |
| 2: –IN A | Inverting input channel A | Chopper-modulated node; requires low-impedance source or RC filter to suppress clock feedthrough. |
| 3: +IN A | Noninverting input channel A | EMI-filtered; supports common-mode range beyond rails by ±200 mV for high-side shunt monitoring. |
| 4: V– | Negative supply | Reference for thermal pad connection; ground return for internal ESD protection diodes. |
| 5: +IN B | Noninverting input channel B | Independent second channel input; identical EMI/CMR specs as +IN A. |
| 6: –IN B | Inverting input channel B | Dual-channel isolation maintained; no crosstalk specified beyond 130 dB at 1 kHz (Figure 38). |
| 7: OUT B | Output channel B | Fully independent output; supports separate feedback networks without interaction. |
| 8: V+ | Positive supply | Accepts up to 24 V; internal UVLO prevents operation below 4.5 V to ensure parameter validity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Operates with input 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 architecture | 0.1 µV/°C max drift over –40°C to +125°C - maintains calibration integrity in unattended industrial field instruments. |
| EMI rejection | ≥95.5 dB EMIRR at 5 GHz - suppresses RF rectification errors from Wi-Fi/Bluetooth co-location in smart meter designs. |
| Phase-reversal protection | Clamps output instead of inverting polarity when inputs exceed CM range - prevents catastrophic control loop reversal in safety-critical systems. |
| MUX-friendly inputs | No settling penalty after channel switching - enables time-multiplexed multi-sensor acquisition without added delay or calibration overhead. |
Applications
| High-Side Current Shunt Monitor | Industrial Flow Transmitter |
|---|---|
|
Use Scenario: Monitoring load current in 24-V DC bus of merchant battery charger or PC power supply using 10-mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision differential amplifier with rail-to-rail input, configured as noninverting gain-of-100 stage driving 16-bit SAR ADC. Use Value: Achieves ±0.1% full-scale current accuracy over temperature without factory calibration due to <10 µV offset and 0.1 µV/°C drift. |
Use Scenario: Signal conditioning for piezoresistive flow sensor bridge in HVAC or water metering system operating at –25°C to +85°C ambient. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with 100-kΩ bridge excitation and 10-Hz low-pass filtering. Use Value: Delivers <12-bit ENOB over full temperature range using only 0.1 µV/°C drift and 110 nVRMS 0.1–10 Hz noise - avoids costly auto-zero ASICs. |
| Smart Electricity Meter | Pressure Transmitter Interface |
|
Use Scenario: Isolated current/voltage sensing in Class 0.2 revenue-grade electricity meter with 10-year field lifetime requirement. IC Role / Device Role / Timing Role: Dual-channel op amp performing simultaneous phase current amplification and neutral current detection with shared reference. Use Value: Enables metrology compliance via 126 dB CMRR and 140 dB open-loop gain - rejects magnetic interference from adjacent CTs and busbars. |
Use Scenario: Amplifying mV-level output of silicon piezoresistive pressure sensor in industrial process control transmitter (4–20 mA loop powered). IC Role / Device Role / Timing Role: Precision gain stage with programmable offset trim, followed by rail-to-rail output buffer driving DAC-based loop controller. Use Value: Supports 0.05% FS accuracy over 15-year life using 0.1 µV/°C drift and 150 µA max total quiescent current for dual-channel operation. |
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 | SO-8 only; 0.035 µV/°C drift (lower), 1.8 MHz GBW (higher), 190 µA IQ (higher); no EMI filtering. | Better drift spec but lacks integrated EMI rejection - requires external RFI filters in noisy industrial enclosures. | Choose OPA2188AIDR when ultra-low drift dominates over EMI immunity and board space is not constrained. |
| AD8629ARZ-REEL7 | SO-8 only; 1 µV max offset (worse), 0.2 µV/°C drift (worse), 2.5 MHz GBW, 1.2 mA IQ (13× higher), no rail-to-rail input. | Higher power consumption and limited input range restrict use in battery-powered or high-side sensing roles. | Choose AD8629ARZ-REEL7 only if legacy SO-8 footprint compatibility is mandatory and 24-V operation is not required. |
Compared with TLV2186IDSGR, OPA2188AIDR offers superior drift but demands external EMI mitigation, while AD8629ARZ-REEL7 trades precision and efficiency for SO-8 availability - neither matches the integrated rail-to-rail input, 24-V range, and EMI-hardened WSON-8 package of TLV2186IDSGR.
Availability
TLV2186IDSGR is available at Aetrix Electronics and suitable for high-side current monitoring, industrial flow/pressure transmitter signal chains, and smart electricity metering requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TLV2186IDSGR 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 TLV2186IDSGR belongs to TI's zero-drift, rail-to-rail op amp product line designed specifically for high-accuracy, low-power, noise-immune signal conditioning in industrial, energy, and test & measurement applications.
FAQ
What is the maximum supply voltage rating for TLV2186IDSGR?
The absolute maximum supply voltage for TLV2186IDSGR is 26 V, but the recommended operating range is 4.5 V to 24 V. Operation above 24 V risks exceeding safe junction temperature and invalidating electrical specifications - TI specifies all parameters only within the 4.5–24 V range per SBOS947A Rev A.
Does TLV2186IDSGR support true rail-to-rail input operation?
Yes, TLV2186IDSGR supports rail-to-rail input with common-mode voltage range from (V–) – 0.2 V to (V+) + 0.2 V. This allows direct connection to signals at the positive rail - a key enabler for high-side current shunt monitoring without external level-shifting components.
What is the thermal pad connection requirement for TLV2186IDSGR?
The exposed thermal pad on TLV2186IDSGR must be soldered to a PCB copper pour electrically connected to V–. This connection is mandatory for thermal dissipation (RθJB = 36.8 °C/W) and EMI suppression - floating or unconnected pads degrade both junction temperature and EMIRR performance.
Can TLV2186IDSGR drive capacitive loads without instability?
TLV2186IDSGR is unity-gain stable and can drive ≥100 pF directly, but Figure 33 shows phase margin drops below 45° beyond 1 nF. For loads >100 pF, TI recommends adding a series isolation resistor (RISO = 25 Ω to 50 Ω) between output and capacitance to maintain stability - verified in Figure 24 and Figure 25.
Is TLV2186IDSGR suitable for high-temperature industrial applications?
Yes, TLV2186IDSGR is fully specified from –40°C to +125°C ambient, with guaranteed performance including ±250 µV max offset, ±1.0 µV/°C max drift, and 120 dB min CMRR across that range. Its WSON-8 package has RθJA = 70.2 °C/W, enabling reliable operation in sealed industrial enclosures up to 100°C case temperature.
TLV2186IDSGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 8-WFDFN Exposed Pad
- 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-WSON (2x2)
TLV2186IDSGR FAQ
1.How can I place an order for TLV2186IDSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2186IDSGR 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 TLV2186IDSGR reliable?
The price and inventory of TLV2186IDSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2186IDSGR is usually 5 days.
3.What payment methods are accepted for TLV2186IDSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2186IDSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2186IDSGR?
TLV2186IDSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2186IDSGR 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 TLV2186IDSGR?
For technical support, including TLV2186IDSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2186IDSGR requirements.
6.How does Aetrix verify that TLV2186IDSGR is sourced from the original manufacturer or authorized distributors?
All TLV2186IDSGR 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 TLV2186IDSGR meets industry standards.
7.What is the process for return or replacement of TLV2186IDSGR?
All TLV2186IDSGR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2186IDSGR, 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 TLV2186IDSGR part is unused and in its original packaging.
Return procedure for TLV2186IDSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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