My Inquiry
My Account
Texas Instruments LMH6618MK/NOPB
- Part No.:
- LMH6618MK/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LMH6618MK/NOPB.pdf
- Description:
- IC OPAMP VFB 1 CIRC SOT23-THIN
- Quantity:
- Payment:
- Shipping:
Inventory:7,674
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6618MK/NOPB from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for high-speed ADC driving and video signal conditioning. It delivers 130 MHz small-signal bandwidth, 55 V/µs slew rate, and 0.1% settling in 90 ns at 5V supply, with 1.25 mA supply current per channel and ±0.75 mV max input offset voltage.
For engineers reviewing the LMH6618MK/NOPB datasheet, LMH6618MK/NOPB pinout, LMH6618MK/NOPB application, or LMH6618MK/NOPB equivalent, key selection criteria include its 6-pin SOT package, active-low disable pin enabling 72 µA shutdown current, rail-to-rail swing within 37 mV of ground on 5V supply, and suitability for precision low-voltage, high-dynamic-range analog front-ends.
Technical Context
The LMH6618MK/NOPB employs a voltage-feedback architecture with balanced inputs and high open-loop gain (>84 dB), supporting stable unity-gain and higher-gain configurations without external compensation. Its input common-mode range extends 200 mV beyond both rails, enabling true single-supply operation down to 2.7V.
It features an integrated active-low disable pin that reduces supply current to 72 µA while maintaining fast 25 ns turn-on time. The output drives up to 35 mA linearly and remains stable into 30 pF capacitive loads, making it suitable for driving ADC inputs and 150Ω video loads without isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 130 MHz at AV = +1, RL = 1 kΩ - supports wideband signal acquisition up to ~80 MHz Nyquist for 160 MSPS+ ADCs |
| Slew Rate | 55 V/µs - enables full-scale 2 VPP step response in <37 ns, critical for fast-settling DAC buffers |
| Supply Current | 1.25 mA typical at 5V - balances speed and power for battery-sensitive portable video and sensor interfaces |
| Input Offset Voltage | ±0.75 mV max at 25°C - ensures <0.03% gain error in 24-bit precision sensor amplification paths |
| Output Swing (Low) | 37 mV above V− rail (RL = 150Ω, 5V) - maximizes dynamic range in single-supply 0–5V systems |
| Shutdown Current | 72 µA max - enables microamp-level system sleep modes without sacrificing wake-up latency |
| Spurious-Free Dynamic Range | 100 dBc at 100 kHz - meets SNR requirements for 14-bit+ ADC input buffering |
Pinout & Package
LMH6618MK/NOPB is housed in a 6-pin SOT-23 package (DDC0006A), footprint-compatible with industry-standard 2.9 mm × 1.6 mm layouts and rated for θJA = 231°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output; capable of sourcing/sinking ±35 mA into 150Ω loads with rail-to-rail swing |
| 2 | IN− | Inverting input; high-impedance (8 MΩ), low-capacitance (1.5 pF) node for precision feedback networks |
| 3 | IN+ | Non-inverting input; rail-to-rail common-mode range (−0.2 V to +5.2 V on 5V supply) |
| 4 | V− | Negative supply rail; supports single-supply (0 V) or dual-supply (±5 V) operation |
| 5 | V+ | Positive supply rail; operates from 2.7 V to 11 V, enabling direct Li-ion or 5 V rail interfacing |
| 6 | DISABLE | Active-low enable control; pulls supply current to 72 µA when logic low, with 2.0 V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail I/O | Input CMVR extends −0.2 V to +5.2 V; output swings to within 37 mV of V− and 60 mV of V+ on 5V supply |
| High-Speed Settling | 90 ns to 0.1% and 120 ns to 0.01% for 2 V step - minimizes dead time in multiplexed data acquisition |
| Low Noise | 10 nV/√Hz input voltage noise at 100 kHz - preserves SNR in front-end sensor and audio amplifiers |
| Capacitive Load Drive | Stable into 30 pF without external compensation - simplifies layout for ADC input filtering |
| Industrial Temp Range | −40°C to +125°C operation - qualified for automotive cabin, industrial PLC, and outdoor embedded use |
Applications
| ADC Driver | DAC Buffer |
|---|---|
Use Scenario: Driving the input of a 12-bit, 100 MSPS pipeline ADC in a portable ultrasound front-end. IC Role / Device Role / Timing Role: High-fidelity signal conditioner providing low-noise, fast-settling analog interface between transducer receive chain and ADC sampling aperture. Use Value: 100 dBc SFDR at 100 kHz ensures >12-bit ENOB; 90 ns 0.1% settling aligns with 10 ns ADC aperture window. |
Use Scenario: Isolating and amplifying output of a 16-bit voltage-output DAC in a programmable power supply controller. IC Role / Device Role / Timing Role: Precision buffer with rail-to-rail swing and low offset to maintain full DAC code accuracy across 0–5 V output range. Use Value: ±0.75 mV VOS contributes <0.015% gain error; 55 V/µs slew rate supports 10 V/µs DAC update transitions. |
| Portable Video Amplifier | Current Sense Amplifier |
Use Scenario: Amplifying composite video signals in STB or portable media player output stage. IC Role / Device Role / Timing Role: Video line driver with 0.1% differential gain/phase error at 4.43 MHz for NTSC/PAL compliance. Use Value: 0.1% DG/DP specification ensures color fidelity; 15 MHz 0.1 dB bandwidth accommodates baseband video spectrum. |
Use Scenario: Measuring bidirectional motor phase current in a 24 V BLDC inverter with shunt-based sensing. IC Role / Device Role / Timing Role: High-speed, rail-to-rail input amplifier configured as difference amplifier across 5 mΩ shunt resistor. Use Value: Input CMVR includes 0 V allows direct ground-referenced shunt measurement; 130 MHz bandwidth captures PWM edge transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed RRIO op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6642MF/NOPB | Higher 190 MHz bandwidth, 130 V/µs slew rate, but 2.3 mA supply current; no shutdown pin | Better for >100 MSPS ADCs requiring faster settling; unsuitable where ultra-low-power shutdown is needed | Select LMH6642MF/NOPB when bandwidth >150 MHz is required and shutdown functionality is unnecessary |
| OPA355DBVR | 150 MHz bandwidth, 45 V/µs slew, 4.5 mA supply current, rail-to-rail I/O, no disable pin | Superior AC performance but higher quiescent power; lacks enable control for power-gated systems | Choose OPA355DBVR for highest fidelity video or RF IF stages where power budget permits |
Compared with LMH6618MK/NOPB, LMH6642MF/NOPB trades 82% higher supply current for 46% more bandwidth and eliminates shutdown capability, while OPA355DBVR offers 15% more bandwidth at 260% higher current and no power management-making LMH6618MK/NOPB optimal for power-constrained, enable-controlled high-speed analog interfaces.
Availability
LMH6618MK/NOPB is available at Aetrix Electronics and suitable for ADC driver, DAC buffer, and portable video applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature extremes.
Supply support for LMH6618MK/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 decades of expertise in high-performance op-amps and signal-chain solutions.
The LMH6618MK/NOPB belongs to TI's PowerWise® high-speed RRIO op-amp family, designed specifically for low-power, high-fidelity analog signal conditioning in portable instrumentation, medical imaging, and industrial data acquisition systems.
FAQ
What is the operating voltage range for the LMH6618MK/NOPB?
The LMH6618MK/NOPB operates from 2.7 V to 11 V supply voltage, supporting both single-supply (e.g., 3.3 V, 5 V) and dual-supply (±5 V) configurations. At 5 V, it delivers specified performance including 130 MHz bandwidth and 55 V/µs slew rate, with rail-to-rail output swing validated across this full range.
Does the LMH6618MK/NOPB have a shutdown feature, and how does it behave?
Yes, the LMH6618MK/NOPB includes an active-low DISABLE pin (Pin 6). When pulled low (≤2.0 V), it reduces supply current to ≤105 µA (typical 72 µA), while maintaining fast 25 ns turn-on time. The pin draws only 1.2 µA at 5 V, enabling low-power microcontroller control without loading drive circuitry.
Can the LMH6618MK/NOPB drive a 150 Ω video load while maintaining DC accuracy?
Yes-the LMH6618MK/NOPB drives 150 Ω loads with rail-to-rail swing (within 37 mV of ground on 5 V supply) and maintains 0.1% differential gain/phase at 4.43 MHz. Its ±0.75 mV input offset and 10 nV/√Hz noise ensure DC-coupled video paths retain color fidelity and black-level stability.
What is the maximum capacitive load the LMH6618MK/NOPB can drive without external compensation?
The LMH6618MK/NOPB is stable driving up to 30 pF capacitive loads directly at unity gain, as confirmed in TI's datasheet Figure 11 and application notes. For loads >30 pF, a small series isolation resistor (e.g., 10–50 Ω) at the output is recommended to maintain phase margin and prevent peaking.
Is the LMH6618MK/NOPB suitable for precision current sensing with a ground-referenced shunt?
Yes-the LMH6618MK/NOPB's input common-mode voltage range extends to −0.2 V on a 5 V supply, allowing direct connection across ground-referenced shunts. Combined with its 130 MHz bandwidth and 90 ns settling, it accurately captures fast transient currents in motor control and power supply monitoring circuits.
LMH6618MK/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 57V/µs
- Gain Bandwidth Product:
- 65 MHz
- -3db Bandwidth:
- 140 MHz
- Current - Input Bias:
- 1.5 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 1.35mA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
LMH6618MK/NOPB FAQ
1.How can I place an order for LMH6618MK/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6618MK/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 LMH6618MK/NOPB reliable?
The price and inventory of LMH6618MK/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6618MK/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6618MK/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6618MK/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6618MK/NOPB?
LMH6618MK/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6618MK/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 LMH6618MK/NOPB?
For technical support, including LMH6618MK/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6618MK/NOPB requirements.
6.How does Aetrix verify that LMH6618MK/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6618MK/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 LMH6618MK/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6618MK/NOPB?
All LMH6618MK/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6618MK/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 LMH6618MK/NOPB part is unused and in its original packaging.
Return procedure for LMH6618MK/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6618MK/NOPB 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…
