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Texas Instruments TLV2172IDR
- Part No.:
- TLV2172IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2172IDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,409
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Product details
Overview
TLV2172IDR from Texas Instruments is a dual-channel, 36-V, rail-to-rail output operational amplifier with EMI hardening, 10 MHz gain bandwidth, 10 V/µs slew rate, and ±1 µV/°C offset drift-designed for precision signal conditioning in high-voltage industrial sensor interfaces and ADC driver stages.
For engineers reviewing the TLV2172IDR datasheet, TLV2172IDR pinout, TLV2172IDR application, or TLV2172IDR equivalent, key selection criteria include input voltage range extending 100 mV below V– and within 2 V of V+, low 9 nV/√Hz noise at 1 kHz, 1.6 mA per amplifier quiescent current, and stability with up to 300 pF capacitive load.
Technical Context
The TLV2172IDR employs a bipolar input stage with phase-reversal protection, enabling robust operation when inputs exceed the common-mode range without output inversion. Its architecture supports single-supply (4.5 V to 36 V) or split-supply (±2.25 V to ±18 V) operation across –40°C to +125°C.
It delivers 116 dB typical CMRR and 120 dB PSRR, with open-loop gain ≥97 dB over temperature, and maintains rail-to-rail output swing (≤95 mV from rail at full temperature range, RL = 10 kΩ). Input bias current is specified at ±10 pA (25°C), supporting high-impedance source interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 4.5 V to 36 V single-supply; enables direct interface with 24-V industrial buses and battery-powered 36-V systems |
| Gain Bandwidth | 10 MHz; supports stable unity-gain buffering of signals up to ~1 MHz with <0.1% gain error |
| Slew Rate | 10 V/µs; allows clean 10-V step response in ≤2 µs (0.1% settling), suitable for fast-settling data acquisition |
| Input Offset Drift | ±1 µV/°C (typ); ensures <12 µV total drift over –40°C to +125°C, critical for uncalibrated precision measurement |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz; contributes <1.8 µV RMS noise in 100-kHz bandwidth, ideal for µV-level transducer amplification |
| Quiescent Current | 1.6 mA per amplifier (max 2.3 mA); balances performance and power in thermally constrained dual-channel designs |
| Capacitive Load Drive | Stable with ≤300 pF; eliminates need for isolation resistor in driving long traces or ADC input capacitance |
Pinout & Package
TLV2172IDR is packaged in an 8-pin SOIC (D package), body size 4.90 mm × 3.91 mm, with exposed pad not present and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; rail-to-rail capable, drives loads down to 2 kΩ while maintaining 470 mV headroom from rails |
| 2 | –IN A | Inverting input, channel A; accepts common-mode voltages from (V–) – 0.1 V to (V+) – 2 V |
| 3 | +IN A | Noninverting input, channel A; matched to –IN A for <2 µV input offset and <1 µV/°C drift |
| 4 | V– | Negative supply rail; reference for both amplifiers; input common-mode extends 100 mV below this pin |
| 5 | +IN B | Noninverting input, channel B; electrically isolated from channel A; supports independent dual-sensor conditioning |
| 6 | –IN B | Inverting input, channel B; identical AC/DC specs to channel A; no crosstalk degradation up to 100 kHz |
| 7 | OUT B | Amplifier B output; independently buffered; no shared output stage-enables simultaneous sourcing/sinking |
| 8 | V+ | Positive supply rail; supplies both amplifiers; PSRR >100 dB rejects ripple on 24-V bus lines |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened design | Immunity to RF interference up to 1 GHz per IEC 61000-4-3; prevents corruption in noisy factory-floor environments |
| No phase reversal | Input overdrive beyond common-mode range forces output to rail instead of inverting-prevents system latch-up in sensor fault conditions |
| Rail-to-rail output | Swings within 95 mV of V– and V+ at full temperature range and 10-kΩ load-maximizes dynamic range in single-supply data loggers |
| High PSRR (120 dB) | Rejects >1 million-fold supply ripple; eliminates need for post-regulation filtering in 24-V powered instrumentation |
| Low input bias current (10 pA) | Enables use with >100-MΩ source impedances (e.g., piezoelectric sensors, pH electrodes) without significant DC error |
Applications
| TFT-LCD Source Driver | Industrial Current-Sense Amplifier |
|---|---|
Use Scenario: Driving column electrodes in automotive-grade TFT-LCD panels with 24-V logic supply and wide temperature operation. IC Role / Device Role / Timing Role: Dual op amp configured as precision voltage buffer and level shifter for gamma correction DAC outputs. Use Value: Rail-to-rail output and 10-MHz bandwidth ensure accurate pixel voltage settling within display line time; EMI hardening prevents screen flicker from motor drive noise. | Use Scenario: Amplifying mV-level shunt voltage in 24-V PLC analog input modules with ±0.1% accuracy requirement. IC Role / Device Role / Timing Role: Dual-channel difference amplifier with matched resistors for bidirectional current sensing across 50-mΩ shunt. Use Value: ±1 µV/°C drift and 116 dB CMRR maintain <0.05% gain error over –40°C to +85°C; 1.6 mA IQ supports dense channel packing. |
| ADC Driver for Precision DAQ | Ultrasound Receive Channel |
Use Scenario: Buffering and filtering sensor signals before 16-bit SAR ADC in portable test equipment. IC Role / Device Role / Timing Role: Dual op amp used in Sallen-Key anti-alias filter and unity-gain buffer stage ahead of ADC input. Use Value: 9 nV/√Hz noise and 10 V/µs slew rate preserve SNR >90 dB; 300-pF load drive eliminates external isolation resistor, reducing board area. | Use Scenario: Low-noise amplification of piezoelectric transducer signals in handheld ultrasound probes. IC Role / Device Role / Timing Role: First-stage preamplifier with adjustable gain and DC-coupled input for wideband echo reception (1–15 MHz). Use Value: Bipolar input stage provides low 10-pA bias current for high-Z transducers; EMI hardening suppresses switching noise from internal DC-DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-voltage op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDR | Zero-drift architecture; 0.02 µV/°C max drift vs TLV2172IDR's ±1 µV/°C; higher 1.3 mA IQ per amp; 10 MHz GBW same | Better for <0.1 µV/°C drift-critical metrology; less suitable for cost-sensitive industrial controls where ±1 µV/°C is sufficient | Select OPA2182IDR only if sub-µV/°C drift is mandatory and budget allows 3× price premium |
| LM2904BDR | Lower 36-V max supply (same), but 700 kHz GBW, 0.3 V/µs slew, 700 µV max VOS, no EMI hardening, 0.7 mA IQ | Acceptable for basic 24-V sensor buffering where bandwidth <100 kHz and noise <100 nV/√Hz suffice | Choose LM2904BDR for non-critical, high-volume cost-down where EMI immunity and precision are secondary |
Compared with OPA2182IDR and LM2904BDR, TLV2172IDR uniquely balances 10-MHz bandwidth, 9-nV/√Hz noise, EMI hardening, and ±1-µV/°C drift at mid-tier pricing-making it optimal for industrial ADC drivers and dual-sensor signal chains requiring robustness without zero-drift overhead.
Availability
TLV2172IDR is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLV2172IDR 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 op amp innovation and broad industrial qualification.
The TLVx172 product line targets cost-sensitive, high-reliability systems needing wide supply range, low noise, and EMI resilience-including HEV/EV powertrain monitoring, portable medical devices, and factory automation sensors.
FAQ
What is the maximum capacitive load the TLV2172IDR can drive without instability?
The TLV2172IDR is specified stable with capacitive loads up to 300 pF, as confirmed in the datasheet's Typical Characteristics (Figure 13–14) and Electrical Characteristics table. This allows direct connection to ADC inputs, long PCB traces, or filtering networks without requiring an isolation resistor-reducing component count and preserving signal integrity in TLV2172IDR-based designs.
Does the TLV2172IDR support true rail-to-rail input operation?
The TLV2172IDR does not support full rail-to-rail input: its common-mode input range extends from (V–) – 0.1 V to (V+) – 2 V under normal operation. While it can tolerate input voltages up to V+ (with reduced performance within 2 V of V+), the guaranteed linear range stops 2 V below V+. This is explicitly documented in the TLV2172IDR datasheet Section 3 (Description) and Table 7.7.
What is the operating temperature range for the TLV2172IDR?
The TLV2172IDR is fully specified from –40°C to +125°C ambient temperature, with all key parameters-including offset drift (±1 µV/°C), CMRR (94–116 dB), and quiescent current (1.6–2.3 mA)-guaranteed across this extended industrial range. This makes TLV2172IDR suitable for under-hood automotive, motor control, and outdoor industrial deployments.
How does the EMI hardening of the TLV2172IDR improve system reliability?
The TLV2172IDR integrates proprietary EMI-hardened input circuitry that attenuates RF interference up to 1 GHz (per IEC 61000-4-3 testing), preventing output corruption from switch-mode power supplies, motor drives, or wireless transceivers. Unlike standard op amps, TLV2172IDR maintains signal fidelity in electrically noisy environments-eliminating erratic behavior in TLV2172IDR-based sensor front-ends without added shielding or filtering.
Can the TLV2172IDR be used with a single 5-V supply?
Yes-the TLV2172IDR operates from 4.5 V to 36 V single-supply, so 5-V operation is fully supported and characterized. At 5 V, it maintains rail-to-rail output swing (within 95 mV of rails), 10-MHz gain bandwidth, and 9 nV/√Hz noise. The TLV2172IDR's specifications are validated across the entire supply range, unlike many op amps rated only at ±15 V or 30 V.
TLV2172IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 1.6mA (x2 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2172IDR FAQ
1.How can I place an order for TLV2172IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2172IDR 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 TLV2172IDR reliable?
The price and inventory of TLV2172IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2172IDR is usually 5 days.
3.What payment methods are accepted for TLV2172IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2172IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2172IDR?
TLV2172IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2172IDR 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 TLV2172IDR?
For technical support, including TLV2172IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2172IDR requirements.
6.How does Aetrix verify that TLV2172IDR is sourced from the original manufacturer or authorized distributors?
All TLV2172IDR 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 TLV2172IDR meets industry standards.
7.What is the process for return or replacement of TLV2172IDR?
All TLV2172IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2172IDR, 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 TLV2172IDR part is unused and in its original packaging.
Return procedure for TLV2172IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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