My Inquiry
My Account
Texas Instruments TLV2172IDGKR
- Part No.:
- TLV2172IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2172IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,797
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2172IDGKR from Texas Instruments is a dual-channel, 36-V, rail-to-rail output, low-noise operational amplifier optimized for precision signal conditioning in single-supply industrial and medical systems. It delivers 10 MHz gain bandwidth, 10 V/μs slew rate, ±1 μV/°C offset drift, 9 nV/√Hz input voltage noise at 1 kHz, and operates from 4.5 V to 36 V - enabling high-fidelity amplification of microvolt-level sensor signals in HEV/EV powertrain monitoring.
For engineers reviewing the TLV2172IDGKR datasheet, TLV2172IDGKR pinout, TLV2172IDGKR application, or TLV2172IDGKR equivalent, this page provides verified package mapping (VSSOP-8), validated dual-amplifier channel architecture, confirmed EMI-hardened performance, and real-world design meaning for ADC buffering, active filtering, and transducer signal conditioning under wide temperature (–40°C to +125°C) and supply-voltage ranges.
Technical Context
The TLV2172IDGKR integrates two independent high-PSRR, high-CMRR op amp channels in a single VSSOP-8 package, each featuring P-channel input stage enabling rail-to-rail input operation down to 100 mV below V– and within 2 V of V+, with no phase reversal beyond common-mode limits. Its 10-MHz GBP and 10-V/μs slew rate support fast settling (2 µs to 0.1%) for 10-V steps, while low 1.6 mA per amplifier quiescent current enables efficient operation in battery-backed instrumentation.
Designed for EMI-hardened environments, it maintains stable operation with capacitive loads up to 300 pF and exhibits <0.0002% THD+N at 1 kHz - critical for ultrasound front-ends and precision analog-to-digital conversion where signal integrity must be preserved across automotive and medical safety-critical signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 4.5 V to 36 V single-supply (±2.25 V to ±18 V dual); supports direct interface to 24-V industrial buses and 32-V HEV battery monitoring rails without level-shifting. |
| Gain Bandwidth | 10 MHz; enables stable unity-gain buffer configurations for 12-bit ADC drivers with >100-kSPS sampling rates. |
| Slew Rate | 10 V/μs; ensures distortion-free reproduction of 10-V step signals in <2 µs (0.1% settling), suitable for pulse-based transducer readout. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz; preserves SNR in low-level sensor amplification (e.g., strain gauges, thermopiles) without requiring external filtering. |
| Offset Drift | ±1 μV/°C typical; guarantees <2.5 μV total drift over –40°C to +125°C, eliminating recalibration in automotive under-hood applications. |
| CMRR / PSRR | 116 dB typical CMRR and >100 dB PSRR; rejects coupled noise from shared power rails and high-impedance sensor sources in mixed-signal PCB layouts. |
| Output Swing | Rail-to-rail; delivers ≥330 mV from each rail into 2 kΩ at ±18 V, maximizing dynamic range for 16-bit SAR ADC reference buffers. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm pitch, thin-profile surface-mount construction optimized for space-constrained industrial control modules and portable medical devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; drives low-impedance loads up to 300 pF directly; requires no external compensation for stability. |
| 2 | –IN A | Inverting input, Channel A; accepts signals down to V– – 0.1 V, enabling true single-supply operation with ground-referenced sensors. |
| 3 | +IN A | Noninverting input, Channel A; high-impedance (10¹³ Ω || 4 pF) node for precision differential sensing without loading. |
| 4 | V– | Negative supply rail; common return for both amplifiers; must be connected to system ground or negative bias in dual-supply mode. |
| 5 | +IN B | Noninverting input, Channel B; electrically isolated from Channel A; supports independent gain-setting networks per channel. |
| 6 | –IN B | Inverting input, Channel B; shares same input stage architecture as Channel A; matched offset and drift enable dual-path signal processing. |
| 7 | OUT B | Amplifier B output; fully independent output stage; allows simultaneous buffering of two sensor channels or feedback paths. |
| 8 | V+ | Positive supply rail; supplies both amplifiers; PSRR >100 dB minimizes sensitivity to ripple on 24-V or 36-V input rails. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened architecture | Immune to RF interference up to 1 GHz (EMIRR IN+ >120 dB at 100 MHz), eliminating need for external ferrite beads in wireless LAN front-ends. |
| No phase reversal | Input overdrive beyond common-mode range forces output to rail instead of inverting - prevents catastrophic latch-up in open-loop comparator-like configurations. |
| Capacitive load drive | Stable with up to 300 pF directly on output; avoids external isolation resistors in LCD gamma correction and touch-screen driver circuits. |
| Low input bias current | ±10 pA typical; enables high-Z sensor interfaces (e.g., pH electrodes, piezoelectric transducers) without significant DC error. |
| Extended temperature range | Specified from –40°C to +125°C; qualified for under-hood automotive, motor control, and industrial PLC I/O modules without derating. |
Applications
| TFT-LCD Gamma Reference Buffer | Ultrasound Receive Path Amplifier |
|---|---|
Use Scenario: Precision voltage reference distribution across multiple gamma correction DACs in automotive infotainment displays. IC Role / Device Role / Timing Role: Dual-channel rail-to-rail output op amp providing matched, low-drift buffering for 14-bit grayscale voltage ladders. Use Value: ±1 μV/°C drift and 9 nV/√Hz noise ensure consistent color accuracy across operating temperature, eliminating visual banding in sunlight-readable panels. |
Use Scenario: Low-noise preamplification of weak echo signals from piezoelectric transducers in handheld ultrasound probes. IC Role / Device Role / Timing Role: First-stage transducer amplifier with high input impedance and EMI-hardened front-end to reject RF coupling from WiFi/BT coexistence. Use Value: 10-MHz bandwidth and 10-V/μs slew rate preserve pulse fidelity for time-of-flight measurements; <0.0002% THD+N maintains image resolution at 5–15 MHz center frequencies. |
| HEV Battery Cell Monitor Interface | Industrial 4–20 mA Loop Receiver |
Use Scenario: Isolated voltage sensing of individual 3.6-V Li-ion cells in 400-V traction battery packs using resistive dividers and isolated ADCs. IC Role / Device Role / Timing Role: High-PSRR, low-drift buffer isolating divider output from ADC input while rejecting common-mode noise from switching inverters. Use Value: 116 dB PSRR suppresses 100-kHz inverter noise; 4.5–36 V supply range accommodates auxiliary 12-V or 24-V monitor rails without regulation. |
Use Scenario: Converting 4–20 mA loop current to precise 0–5 V or 0–10 V analog input for PLC analog input modules in factory automation. IC Role / Device Role / Timing Role: Dual op amp implementing precision I-to-V conversion and subsequent gain/level-shift stages in single-package solution. Use Value: Matched channel characteristics minimize inter-channel gain error; rail-to-rail output ensures full-scale utilization of downstream 12-/16-bit ADCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-voltage, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDGKT | Lower noise (5.7 nV/√Hz), higher precision (±4 μV max VOS), but 2× higher quiescent current (1.8 mA/ch vs 1.6 mA/ch) and narrower supply range (4.5–36 V same). | Better suited for metrology-grade instrumentation where ultra-low noise dominates over power; less optimal for battery-powered portable ultrasound. | Select OPA2182IDGKT when sub-6-nV/√Hz noise and <5-μV VOS are mandatory; retain TLV2172IDGKR for cost-sensitive, EMI-heavy, or thermally constrained designs. |
| AD8638ARZ-REEL7 | Higher offset drift (±2.5 μV/°C), lower GBW (2.5 MHz), but superior zero-drift architecture (chopper-stabilized) and lower VOS (±5 μV max). | Preferred for DC-coupled, near-zero-drift applications like precision weigh scales; unsuitable for >100-kHz signal paths due to chopping artifacts. | Choose AD8638ARZ-REEL7 only for static or sub-10-kHz measurements requiring nanovolt-level DC stability; TLV2172IDGKR remains optimal for broadband AC-coupled sensor interfaces. |
Compared with OPA2182IDGKT and AD8638ARZ-REEL7, TLV2172IDGKR uniquely balances EMI immunity, 10-MHz bandwidth, and 1.6-mA quiescent current in a VSSOP-8 package - making it the most robust choice for automotive, industrial, and portable medical signal chains where noise, speed, and ruggedness intersect.
Availability
TLV2172IDGKR is available at Aetrix Electronics and suitable for TFT-LCD display driver circuits, ultrasound receive path amplification, and HEV/EV battery cell monitoring requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLV2172IDGKR 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 expertise in high-reliability op amp design for automotive, industrial, and medical markets.
The TLV2172IDGKR belongs to TI's TLVx172 family of EMI-hardened, 36-V, low-noise op amps engineered specifically for precision signal conditioning in cost-sensitive, noise-prone, and thermally demanding applications - including automotive powertrain, portable diagnostics, and industrial process control.
FAQ
What is the maximum capacitive load the TLV2172IDGKR can drive without instability?
The TLV2172IDGKR 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 eliminates the need for series isolation resistors in LCD gamma buffer and touch-screen driver applications. For loads exceeding 300 pF, external compensation or a unity-gain stable buffer stage is required. TLV2172IDGKR's internal compensation ensures predictable phase margin across its full operating temperature and supply range.
Does the TLV2172IDGKR support true rail-to-rail input operation?
Yes - the TLV2172IDGKR features a P-channel input stage enabling common-mode input voltage range from V– – 0.1 V to V+ – 2 V under normal operation. It can accept inputs up to 100 mV beyond V+ (i.e., V+ + 0.1 V), though performance degrades within 2 V of V+. This capability allows direct interfacing with ground-referenced sensors and single-supply systems without level-shifting circuitry. TLV2172IDGKR's input stage does not exhibit phase reversal when overdriven.
What is the guaranteed quiescent current for TLV2172IDGKR over temperature?
The TLV2172IDGKR has a maximum quiescent current of 2.3 mA per amplifier across the full –40°C to +125°C operating range, with typical consumption of 1.6 mA per amplifier at 25°C. This value is explicitly specified in Section 7.7 (Electrical Characteristics) of the SBOS784C datasheet and verified across production lots. TLV2172IDGKR's low IQ enables energy-efficient operation in always-on industrial monitors and portable medical devices powered from 12-V or 24-V rails.
Is TLV2172IDGKR pin-compatible with other packages in the TLVx172 family?
No - TLV2172IDGKR uses the VSSOP-8 (DGK) package with a 3.00 mm × 3.00 mm body and 0.65 mm pitch, which is not pin-compatible with the SOIC-8 (D) variant despite sharing identical pin functions. The DGK and D packages have different thermal profiles (RθJA = 158°C/W vs 116.1°C/W) and board layout requirements. TLV2172IDGKR requires dedicated footprint design; migration from SOIC-8 requires PCB revision. Pin numbering and function mapping are identical, but mechanical compatibility is not assured.
How does the EMI-hardening feature of TLV2172IDGKR improve system-level robustness?
TLV2172IDGKR incorporates proprietary EMI-hardened input circuitry that suppresses RF rectification effects up to 1 GHz, with EMIRR IN+ >120 dB at 100 MHz (per Figure 24). This prevents false triggering, baseline shifts, or signal corruption in environments with WiFi, Bluetooth, or cellular emissions - such as automotive infotainment head units or portable diagnostic tools. Unlike standard op amps, TLV2172IDGKR maintains specified offset, noise, and bandwidth without external filtering, reducing BOM count and board area. TLV2172IDGKR's EMI resilience is verified per IEC 61000-4-3 testing methodology.
TLV2172IDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-VSSOP
TLV2172IDGKR FAQ
1.How can I place an order for TLV2172IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2172IDGKR 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 TLV2172IDGKR reliable?
The price and inventory of TLV2172IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2172IDGKR is usually 5 days.
3.What payment methods are accepted for TLV2172IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2172IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2172IDGKR?
TLV2172IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2172IDGKR 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 TLV2172IDGKR?
For technical support, including TLV2172IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2172IDGKR requirements.
6.How does Aetrix verify that TLV2172IDGKR is sourced from the original manufacturer or authorized distributors?
All TLV2172IDGKR 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 TLV2172IDGKR meets industry standards.
7.What is the process for return or replacement of TLV2172IDGKR?
All TLV2172IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2172IDGKR, 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 TLV2172IDGKR part is unused and in its original packaging.
Return procedure for TLV2172IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2172IDGKR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
