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Texas Instruments TLV172IDCKT
- Part No.:
- TLV172IDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV172IDCKT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:20,444
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Product details
Overview
TLV172IDCKT from Texas Instruments is a single-channel, 36-V, rail-to-rail output operational amplifier with EMI-hardened design, 10 MHz gain bandwidth, 10 V/µs slew rate, and 9 nV/√Hz input voltage noise-used in precision analog front-ends for medical instrumentation and HEV/EV powertrain signal conditioning.
For engineers reviewing the TLV172IDCKT datasheet, TLV172IDCKT pinout, TLV172IDCKT application, or TLV172IDCKT equivalent, this page delivers verified electrical specs, SC70-5 package mapping, real-world use cases in ADC buffering and transducer amplification, and two validated alternative op amps with documented functional and parametric differences.
Technical Context
The TLV172IDCKT employs a proprietary EMI-hardened input stage that suppresses RF-induced errors without external filtering, enabling reliable operation in noisy automotive and industrial environments. Its input operates 100 mV below V– and within 2 V of V+, while output swings rail-to-rail under 10 kΩ load.
It features a high open-loop gain (115 dB typical), 116 dB CMRR, and ±1 µV/°C offset drift-ensuring stable DC accuracy across –40°C to +125°C. The device remains stable driving capacitive loads up to 300 pF and avoids phase reversal even when inputs exceed common-mode limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 4.5 V to 36 V single-supply (±2.25 V to ±18 V) - supports wide-input industrial sensors and battery-powered systems without dual-rail generation. |
| Gain Bandwidth Product | 10 MHz - enables stable unity-gain buffer configurations for high-speed ADC drivers and active filters up to ~1 MHz. |
| Slew Rate | 10 V/µs - ensures <3.2 µs settling to 0.01% for 10-V steps, critical for fast pulse conditioning in ultrasound and currency counters. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - preserves SNR in microvolt-level transducer signals (e.g., strain gauges, thermopiles) without added noise floor degradation. |
| Input Bias Current | 10 pA - minimizes voltage error in high-impedance sensor interfaces (e.g., pH electrodes, photodiode TIA feedback networks). |
| Offset Drift | ±1 µV/°C - guarantees <12 µV total drift over –40°C to +125°C, eliminating recalibration in automotive cabin modules and motor control boards. |
| Quiescent Current | 1.6 mA per amplifier - balances performance and power in portable instrumentation where thermal headroom is constrained. |
Pinout & Package
TLV172IDCKT is packaged in a 5-pin SC70 (DCK) with 2.00 mm × 1.25 mm body size and 0.65 mm pitch. Thermal resistance RθJA is 285.2°C/W, requiring minimal PCB copper for operation at full temperature range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN | Noninverting input - referenced to V–; accepts signals down to V– – 0.1 V for true single-supply sensor interfacing. |
| 2 | V– | Negative supply terminal - connects to ground or negative rail; input common-mode extends 100 mV below this pin. |
| 3 | –IN | Inverting input - used in precision gain-setting configurations; matched bias current minimizes offset in differential amplifiers. |
| 4 | OUT | Amplifier output - rail-to-rail swing (≤95 mV from rails at 10 kΩ, +125°C) supports direct interface to SAR ADC reference buffers. |
| 5 | V+ | Positive supply terminal - accepts up to 36 V; PSRR >100 dB ensures immunity to supply ripple in motor drive feedback loops. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened architecture | Integrated RF rejection eliminates need for external ferrite beads or RC filters in wireless LAN baseband stages and EV battery management systems. |
| No phase reversal | Input overdrive beyond common-mode range forces output to rail instead of inverting - prevents latch-up in touch-screen display charge amplifiers during ESD transients. |
| Rail-to-rail output | Delivers full dynamic range into 10 kΩ loads across temperature, maximizing resolution in 16-bit ADC buffer applications without level-shifting circuitry. |
| High PSRR (120 dB typ) | Rejects switching regulator noise (e.g., from buck converters powering analog subsystems), maintaining signal integrity in mixed-signal embedded controllers. |
| Stable with 300 pF load | Drives long PCB traces or capacitive touch-sensing electrodes directly, avoiding instability in TFT-LCD gate driver bias networks. |
Applications
| TFT-LCD Drive Circuits | Transducer Amplifiers |
|---|---|
Use Scenario: Biasing gamma correction DAC outputs in automotive-grade LCD displays exposed to engine compartment EMI. IC Role / Device Role / Timing Role: Precision voltage follower buffering high-impedance DAC outputs while rejecting RF noise from nearby CAN bus and ignition systems. Use Value: EMI-hardened input prevents display flicker or color shift during RF exposure; rail-to-rail output ensures full 0–3.3 V gamma curve fidelity. |
Use Scenario: Amplifying low-level mV-range signals from piezoresistive pressure sensors in hydraulic brake systems. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with 10 pA bias current minimizing error in high-Z sensor bridges. Use Value: 9 nV/√Hz noise and ±1 µV/°C drift preserve signal integrity across –40°C to +125°C, meeting ASIL-B diagnostic requirements. |
| Analog-to-Digital Converter (ADC) Buffers | Ultrasound Imaging Front-Ends |
Use Scenario: Driving SAR ADC inputs in portable patient monitors with battery-powered 3.3 V or 5 V supplies. IC Role / Device Role / Timing Role: Unity-gain stable buffer isolating ADC sample-and-hold from source impedance variations and ensuring <3.2 µs 0.01% settling. Use Value: 10 V/µs slew rate and 10 MHz GBW enable accurate sampling of fast transient biosignals (e.g., ECG spikes) without distortion. |
Use Scenario: Conditioning echo return signals from 5–15 MHz transducers in handheld ultrasound probes. IC Role / Device Role / Timing Role: Low-noise preamplifier stage with 10 MHz bandwidth preserving time-of-flight resolution in beamforming ASIC interfaces. Use Value: 9 nV/√Hz input noise maintains SNR >70 dB for weak echo detection; 300 pF capacitive load drive simplifies probe cable termination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA192IDBVT | Lower input bias current (1 pA vs 10 pA), higher GBP (10 MHz same), but higher quiescent current (1.5 mA vs 1.6 mA) and no EMI hardening. | Better for ultra-high-Z pH or photodiode circuits; unsuitable for noisy automotive environments without added filtering. | Select OPA192IDBVT only when sub-pA bias is mandatory and EMI immunity is handled externally. |
| LMV721IDBVR | Lower supply range (2.7–5.5 V), lower noise (10.5 nV/√Hz), but no rail-to-rail output and limited temperature range (–40°C to +125°C same). | Optimized for low-voltage portable instrumentation; cannot replace TLV172IDCKT in 12–36 V industrial or automotive systems. | Choose LMV721IDBVR only for cost-sensitive, single-cell battery-powered designs where 36-V capability is unnecessary. |
Compared with OPA192IDBVT and LMV721IDBVR, TLV172IDCKT uniquely combines 36-V operation, EMI hardening, rail-to-rail output, and ±1 µV/°C drift-making it the only option for high-reliability, wide-supply analog signal chains in HEV powertrains and medical diagnostics equipment.
Availability
TLV172IDCKT is available at Aetrix Electronics and suitable for TFT-LCD drive circuits, transducer amplifiers, and ADC buffering requiring stable component supply across automotive, industrial, and medical production programs.
Supply support for TLV172IDCKT 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, power management, and signal chain solutions.
TLV172IDCKT belongs to the TLVx172 family-designed specifically for cost-sensitive, high-reliability systems demanding low noise, EMI resilience, and wide supply operation in automotive, medical, and industrial environments.
FAQ
What is the maximum capacitive load TLV172IDCKT can drive without instability?
TLV172IDCKT is specified stable with capacitive loads up to 300 pF, as confirmed in the datasheet's Typical Characteristics section (Figure 13–14). This allows direct driving of long PCB traces, LCD panel capacitance, or touch-sensor electrodes without external isolation resistors. For loads exceeding 300 pF, a series resistor at the output is recommended to maintain phase margin.
Does TLV172IDCKT support true rail-to-rail input operation?
TLV172IDCKT does not support full rail-to-rail input: its common-mode input range extends from V– – 0.1 V to V+ – 2 V. However, it can tolerate input voltages up to V+ + 0.5 V (absolute max), with reduced performance within 2 V of V+. This design enables robust operation in single-supply sensor interfaces while preventing phase reversal.
What is the guaranteed offset voltage specification for TLV172IDCKT over temperature?
TLV172IDCKT has a maximum input offset voltage of 2 mV over the full operating temperature range of –40°C to +125°C, with a typical value of 1.7 mV at 25°C. Its ±1 µV/°C drift ensures predictable, low-drift behavior-critical for closed-loop control systems where calibration intervals must be extended.
Can TLV172IDCKT operate from a single 5-V supply?
Yes, TLV172IDCKT is fully specified from 4.5 V to 36 V single-supply operation. At 5 V, it delivers rail-to-rail output swing (within 95 mV of rails at +125°C), 10 MHz bandwidth, and 10 V/µs slew rate-making it suitable for 5-V portable instrumentation, USB-powered test equipment, and industrial I/O modules.
Is TLV172IDCKT pin-compatible with other op amps in the TLVx172 family?
No-TLV172IDCKT (SC70-5) is not pin-compatible with TLV2172 (dual, SOIC-8/VSSOP-8) or TLV4172 (quad, SOIC-14/TSSOP-14). Its 5-pin SC70 layout is unique to the single-channel variant. Pin compatibility exists only between TLV172 variants in the same package type (e.g., TLV172IDCKR and TLV172IDCKT share identical SC70-5 pinout).
TLV172IDCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- 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:
- SC-70-5
TLV172IDCKT FAQ
1.How can I place an order for TLV172IDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV172IDCKT 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 TLV172IDCKT reliable?
The price and inventory of TLV172IDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV172IDCKT is usually 5 days.
3.What payment methods are accepted for TLV172IDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV172IDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV172IDCKT?
TLV172IDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV172IDCKT 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 TLV172IDCKT?
For technical support, including TLV172IDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV172IDCKT requirements.
6.How does Aetrix verify that TLV172IDCKT is sourced from the original manufacturer or authorized distributors?
All TLV172IDCKT 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 TLV172IDCKT meets industry standards.
7.What is the process for return or replacement of TLV172IDCKT?
All TLV172IDCKT units undergo pre-shipment inspection (PSI). If there is an issue with TLV172IDCKT, 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 TLV172IDCKT part is unused and in its original packaging.
Return procedure for TLV172IDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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