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Texas Instruments LM8272MM/NOPB
- Part No.:
- LM8272MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM8272MM/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,105
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Product details
Overview
LM8272MM/NOPB from Texas Instruments is a dual rail-to-rail input/output operational amplifier optimized for high-output-current, unlimited capacitive load drive, and wide supply operation (2.5 V to 24 V). It delivers ±65 mA output current at 1 V from rails, 15 MHz gain-bandwidth product, and 15 V/µs slew rate - enabling use in TFT-LCD VCOM driver circuits where precision, stability, and robust capacitive loading are critical.
For engineers reviewing the LM8272MM/NOPB datasheet, LM8272MM/NOPB pinout, LM8272MM/NOPB application, or LM8272MM/NOPB equivalent, this page provides verified specifications, package mapping, real-world application context, and validated alternative options - all grounded in TI's SNOS515F datasheet (Rev. F, August 2015).
Technical Context
The LM8272MM/NOPB employs a dual-differential-pair input stage enabling rail-to-rail input common-mode voltage range extending 0.3 V beyond both supply rails, with ≥50 dB CMRR maintained across that range. Its output stage uses complementary NPN/PNP common-emitter transistors to achieve output swing within millivolts of V+ and V−, while internal Miller compensation dynamically adapts to capacitive loads up to infinity without oscillation.
It operates over −40°C to +85°C, draws only 0.95 mA per channel (2.4 mA total), and maintains stable performance across 2.5 V–24 V supplies - with key parameters (GBWP, PSRR, CMRR) largely insensitive to supply variation. Input-referred noise is 15 nV/√Hz and 1.4 pA/√Hz, supporting precision low-noise signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 24 V - supports single-supply industrial sensors and dual-supply audio buffers without level-shifting. |
| Gain-Bandwidth Product | 15 MHz - enables stable unity-gain buffering of signals up to ~12.5 MHz (small-signal −3 dB BW at AV = +1, RL = 2 kΩ). |
| Slew Rate | 15 V/µs - ensures <1% settling in under 1 µs for 10 V step into 100 nF load, critical for fast VCOM updates. |
| Output Current (1 V from rails) | ±65 mA - drives heavy capacitive loads (e.g., multi-channel TFT panel lines) without droop or distortion. |
| Capacitive Load Tolerance | Unlimited - eliminates need for external isolation resistors or compensation networks in VCOM and ADC buffer designs. |
| Input Common-Mode Range | 0.3 V beyond rails - enables direct high-side/low-side sensing in battery-powered or split-rail systems without attenuation. |
| Input Voltage Noise | 15 nV/√Hz - preserves SNR in low-level analog front-ends such as A/D converter drivers. |
Pinout & Package
LM8272MM/NOPB is housed in an 8-pin VSSOP package (3.00 mm × 3.00 mm body size), optimized for space-constrained flat-panel display and portable instrumentation PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Output A | Amplified signal source for Channel A; capable of sourcing/sinking ±65 mA while swinging within ~250 mV of rails. |
| 2 (−IN A) | Inverting Input A | Feedback node for Channel A; accepts input common-mode voltages from V− − 0.3 V to V+ + 0.3 V. |
| 3 (+IN A) | Non-Inverting Input A | Signal input for Channel A; same rail-to-rail common-mode range as −IN A; differential pair selection shifts at ~1.4×V+. |
| 4 (V−) | Negative Supply | Ground or negative rail reference; must be decoupled with ≥4.7 µF tantalum + 0.01 µF ceramic capacitor. |
| 5 (+IN B) | Non-Inverting Input B | Signal input for Channel B; electrically identical to +IN A; independent of Channel A for dual-buffer applications. |
| 6 (−IN B) | Inverting Input B | Feedback node for Channel B; shares same input stage architecture and rail-to-rail tolerance as −IN A. |
| 7 (OUT B) | Output B | Amplified signal source for Channel B; fully independent output stage with identical drive capability and swing. |
| 8 (V+) | Positive Supply | Positive rail reference; requires identical decoupling as V− to prevent supply-induced oscillation or crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input & output | Input extends 0.3 V beyond rails; output swings to within 250 mV of V+ and 215 mV of V− (at 5 mA load), maximizing dynamic range in low-voltage systems. |
| Unlimited capacitive load drive | Internally compensated for stability with any CL - eliminates external RC snubbers in TFT VCOM and ADC sample-hold buffers. |
| High output current (±65 mA) | Drives 600 Ω loads at full swing and charges 100 nF panels rapidly - reduces settling time vs. standard RRIO op-amps by >3×. |
| Low quiescent current (0.95 mA/channel) | Enables dual-channel buffering in power-sensitive applications (e.g., portable medical displays) without thermal derating. |
| Wide supply range (2.5 V–24 V) | Single BOM supports 3.3 V microcontroller interfaces and 24 V industrial I/O modules - no redesign needed across platforms. |
Applications
| TFT-LCD VCOM Driver | A/D Converter Buffer |
|---|---|
Use Scenario: Driving common electrode voltage (VCOM) in active-matrix LCD panels with multi-line capacitance (>100 nF) and fast frame-rate updates. IC Role / Device Role / Timing Role: Dual-channel unity-gain buffer providing precise, low-distortion DC-biased AC waveform to panel electrodes; handles large transient currents during pixel switching. Use Value: Unlimited capacitive load tolerance prevents oscillation; ±65 mA drive ensures <5 µs settling for 10 V steps - meeting 120 Hz refresh timing requirements. |
Use Scenario: Isolating and driving analog inputs of SAR or delta-sigma ADCs in data acquisition systems with multiplexed sensor channels. IC Role / Device Role / Timing Role: Rail-to-rail input buffer rejecting common-mode noise from long traces; output drives ADC input capacitance (10–30 pF) and series resistance without phase lag. Use Value: 15 MHz GBWP and 15 V/µs slew rate support >1 MSPS sampling without aperture error; 15 nV/√Hz noise preserves ENOB in 16-bit systems. |
| High-Side/Low-Side Sensing | Headphone Amplifier |
Use Scenario: Measuring current or voltage across shunts or batteries in automotive body control modules and solar charge controllers. IC Role / Device Role / Timing Role: Precision difference amplifier front-end accepting inputs beyond supply rails - e.g., sensing 0–28 V on 12 V system without level shifters. Use Value: 0.3 V beyond-rail input range enables direct connection to shunt; 74 dB CMRR at 12 V ensures <1 mV error at 100:1 common-mode rejection. |
Use Scenario: Driving low-impedance (16–32 Ω) stereo headphone loads in portable media players and USB DACs. IC Role / Device Role / Timing Role: Single-supply (5 V) output stage delivering ±65 mA peak current into reactive loads; rail-to-rail output maximizes loudness at low supply. Use Value: 0.02% THD+N at 8 VPP ensures clean audio reproduction; 15 V/µs slew rate prevents slew-induced distortion on transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2772IDR | Lower supply range (2.7 V–16 V); 10 MHz GBWP; ±30 mA output; no unlimited cap-load guarantee. | Better suited for low-power sensor interfaces than high-current VCOM driving; requires external compensation above ~10 nF. | Select when supply is ≤16 V and capacitive load <10 nF; not recommended for TFT-LCD VCOM. |
| OPA2340UA/2K5 | Wider GBWP (5.5 MHz typical); lower noise (8 nV/√Hz); ±20 mA output; limited to 100 pF stable load. | Optimized for precision instrumentation, not high-current buffering; unstable beyond 100 pF without isolation resistor. | Prefer for low-noise, low-distortion ADC drivers where load capacitance is minimal and supply ≤5.5 V. |
Compared with TLV2772IDR and OPA2340UA/2K5, LM8272MM/NOPB uniquely combines unlimited capacitive load stability, ±65 mA drive, and 24 V operation - making it irreplaceable in TFT-LCD VCOM and industrial high-current buffer roles where alternatives require redesign or performance trade-offs.
Availability
LM8272MM/NOPB is available at Aetrix Electronics and suitable for TFT-LCD VCOM driver circuits, A/D converter input buffering, and high-side/low-side current sensing applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LM8272MM/NOPB 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, embedded processing, and connectivity technologies - with over 50 years of op-amp innovation and broad industrial qualification.
The LM8272MM/NOPB belongs to TI's precision rail-to-rail op-amp portfolio, engineered specifically for flat-panel display VCOM drivers and high-current, high-capacitance analog signal conditioning in harsh industrial environments.
FAQ
What is the maximum capacitive load the LM8272MM/NOPB can drive without external compensation?
The LM8272MM/NOPB is explicitly specified for unlimited capacitive load drive - meaning it remains stable with any value of load capacitance (including 100 nF, 1 µF, or higher) without requiring external isolation resistors or compensation networks. This is confirmed in TI's SNOS515F datasheet Section 7.4 and Figure 25, which shows stable step response across 1 pF to 100 nF loads.
Does the LM8272MM/NOPB support true rail-to-rail input beyond the supply rails?
Yes - the LM8272MM/NOPB accepts input common-mode voltages from V− − 0.3 V to V+ + 0.3 V, as verified in Section 6.5 (5V EC) and Section 6.6 (12V EC) of the datasheet. This "beyond-the-rails" input range enables direct high-side and low-side sensing without attenuators or level shifters, with ≥50 dB CMRR maintained across the full range.
What is the output voltage swing capability of the LM8272MM/NOPB at 12 V supply?
At VS = 12 V (V+ = 12 V, V− = 0 V), the LM8272MM/NOPB delivers a minimum output swing of 11.7 V (high) and 0.3 V (low) into a 10 kΩ load, per Section 6.6 of the datasheet. With 5 mA sourcing/sinking current, swing degrades to 11.5 V high and 0.4 V low - confirming rail-to-rail operation with <500 mV total headroom at full load.
Can the LM8272MM/NOPB operate from a single 3.3 V supply?
Yes - the LM8272MM/NOPB is fully specified down to 2.5 V supply, including guaranteed operation at 3.3 V. Electrical characteristics in Section 6.5 (5 V EC) and Section 6.3 (Recommended Operating Conditions) confirm functionality across the full 2.5 V–24 V range, with rail-to-rail input/output and 15 MHz GBWP preserved at low voltage.
What decoupling is required for stable operation of the LM8272MM/NOPB?
TI mandates dual-stage supply decoupling per Section 7.7: a 0.01 µF ceramic capacitor placed immediately adjacent to each supply pin (V+ and V−), plus a shared ≥4.7 µF tantalum or aluminum electrolytic capacitor on the board. This suppresses high-frequency supply noise and supplies transient current during fast output slewing - preventing oscillation and crosstalk between channels.
LM8272MM/NOPB 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:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 15V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- 12.5 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 1.9mA (x2 Channels)
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM8272MM/NOPB FAQ
1.How can I place an order for LM8272MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM8272MM/NOPB 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 LM8272MM/NOPB reliable?
The price and inventory of LM8272MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM8272MM/NOPB is usually 5 days.
3.What payment methods are accepted for LM8272MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM8272MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM8272MM/NOPB?
LM8272MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM8272MM/NOPB 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 LM8272MM/NOPB?
For technical support, including LM8272MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM8272MM/NOPB requirements.
6.How does Aetrix verify that LM8272MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LM8272MM/NOPB 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 LM8272MM/NOPB meets industry standards.
7.What is the process for return or replacement of LM8272MM/NOPB?
All LM8272MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM8272MM/NOPB, 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 LM8272MM/NOPB part is unused and in its original packaging.
Return procedure for LM8272MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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