My Inquiry
My Account
Texas Instruments LMH6624MFX
- Part No.:
- LMH6624MFX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6624MFX.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,946
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6624MFX from Texas Instruments is a single-channel ultra-low-noise, wideband voltage-feedback operational amplifier in SOT-23-5 package. It delivers 1.5 GHz gain bandwidth, 0.92 nV/√Hz input voltage noise, and 350 V/μs slew rate at ±6 V supply, enabling high-fidelity signal conditioning in ultrasound pre-amplifiers and instrumentation sense amplifiers.
For engineers reviewing the LMH6624MFX datasheet, LMH6624MFX pinout, LMH6624MFX application, or LMH6624MFX equivalent, key selection criteria include its stable operation at |AV| ≥10, ±2.5 V to ±6 V dual-supply range, low 700 µV max input offset voltage over temperature, and SOT-23-5 footprint compatibility with space-constrained RF and medical front-end designs.
Technical Context
The LMH6624MFX employs a traditional voltage-feedback topology with balanced differential inputs, delivering 81 dB open-loop gain and 95 dB CMRR. Its architecture supports both inverting and non-inverting configurations with closed-loop gains ≥10 while maintaining stability via internal compensation optimized for 100 Ω–500 Ω feedback networks.
It operates across −40°C to +125°C with ±2.5 V to ±6 V dual-supply or 5 V to 12 V single-supply rails. Input stage features 6.6 MΩ common-mode input resistance and 0.9 pF common-mode capacitance, enabling low-noise interfacing with high-impedance sensors without significant loading or bandwidth degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 1.5 GHz - Enables stable closed-loop operation up to 100 MHz with AV = +10, suitable for wideband active filters and RF signal chains. |
| Input Voltage Noise | 0.92 nV/√Hz - Critical for preserving SNR in low-level sensor interfaces such as magnetic tape/disk pre-amps and ultrasound receive paths. |
| Slew Rate | 350 V/μs (AV = +20) - Supports fast transient response for 2 VPP signals without distortion in professional audio and opto-electronic systems. |
| Input Offset Voltage | 700 µV max over temp - Ensures DC accuracy in precision instrumentation sense amplifiers without requiring frequent nulling. |
| Supply Range | ±2.5 V to ±6 V dual or 5 V to 12 V single - Provides flexibility for integration into legacy ±5 V systems or modern low-voltage embedded platforms. |
| Harmonic Distortion | −63 dBc HD2 / −80 dBc HD3 at 10 MHz - Meets linearity requirements for high-fidelity signal reconstruction in medical diagnostic equipment. |
| CMRR | 95 dB - Rejects common-mode interference in noisy industrial environments when used in differential-sensing topologies. |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm), surface-mount, thermally enhanced plastic case with exposed pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Output | Amplified single-ended output node; capable of sourcing/sinking ≥100 mA into 100 Ω load at ±6 V supply. |
| 2: V− | Negative Supply | Return path for dual-supply operation; must be decoupled with 0.1 µF ceramic capacitor near pin. |
| 3: +IN | Non-inverting Input | High-impedance (6.6 MΩ) input accepting DC-coupled or AC-coupled signals; requires matched trace impedance in RF layouts. |
| 4: −IN | Inverting Input | Differential input node; connects to feedback network (e.g., 500 Ω resistor) to set closed-loop gain and bandwidth. |
| 5: V+ | Positive Supply | Primary power rail; accepts 2.5 V to 6 V in dual mode or 5 V to 12 V in single-supply configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input voltage noise | 0.92 nV/√Hz enables detection of sub-microvolt signals in ultrasound and instrumentation applications without degrading system SNR. |
| Stable for |AV| ≥10 | Guaranteed phase margin >45° with standard 500 Ω feedback resistors, eliminating need for external compensation in most gain ≥10 designs. |
| Wide supply range | Operates from ±2.5 V to ±6 V, supporting both low-power portable devices and high-dynamic-range industrial systems. |
| High slew rate & bandwidth | 350 V/μs slew rate and 1.5 GHz GBW allow faithful reproduction of fast transients in optical receiver and test equipment front-ends. |
| Low input bias current drift | ±0.25 μV/°C VOS drift ensures minimal DC error shift over temperature in uncooled medical diagnostics hardware. |
Applications
| Ultrasound Pre-amplifiers | Instrumentation Sense Amplifiers |
|---|---|
Use Scenario: Amplifying weak echo signals (≤100 µV) from piezoelectric transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: First-stage low-noise voltage amplifier in analog front-end (AFE), operating at AV = +20 with 100 Ω load. Use Value: 0.92 nV/√Hz input noise preserves signal integrity, enabling detection of deep-tissue structures with >100 dB dynamic range. | Use Scenario: Conditioning millivolt-level outputs from strain gauges and RTDs in industrial process monitoring systems. IC Role / Device Role / Timing Role: Precision DC-coupled gain block with <700 µV max VOS over −40°C to +125°C. Use Value: Low offset drift (±0.25 μV/°C) eliminates recalibration needs in unheated enclosures, reducing maintenance cost. |
| Wide Band Active Filters | Professional Audio Systems |
Use Scenario: Implementing 5th-order Butterworth low-pass filter at 20 MHz cutoff in high-speed data acquisition boards. IC Role / Device Role / Timing Role: Unity-gain stable op-amp configured in multiple feedback (MFB) topology with 1% tolerance resistors. Use Value: 1.5 GHz GBW ensures filter group delay flatness within ±0.5 ns across 0–15 MHz, critical for time-domain fidelity. | Use Scenario: Line-driver stage in digital mixing consoles handling 20 Hz–20 kHz full-scale signals with headroom for transients. IC Role / Device Role / Timing Role: Output buffer with 350 V/μs slew rate driving 600 Ω balanced lines via transformer coupling. Use Value: −63 dBc HD2 at 10 MHz guarantees <0.05% THD+N at 20 kHz, meeting EBU R68 broadcast standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-noise wideband amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MF/NOPB | Higher 3.2 GHz GBW, 0.89 nV/√Hz noise, but requires AV ≥ 25 for stability and draws 18 mA per channel vs. 16 mA. | Better suited for >100 MHz IF amplification; less ideal for DC-coupled instrumentation due to higher minimum gain requirement. | Select LMH6629MF/NOPB only when >200 MHz closed-loop bandwidth is required and layout supports strict gain-setting control. |
| ADA4898-1ARZ | 0.9 nV/√Hz noise, 290 MHz GBW, ±3 V to ±12 V supply, but 120 V/μs slew rate and higher 1.2 mV VOS max. | Preferred for lower-frequency precision applications (<50 MHz) where power supply flexibility and lower cost outweigh bandwidth needs. | Choose ADA4898-1ARZ for cost-sensitive industrial sensors where 290 MHz GBW suffices and wider supply range simplifies power design. |
Compared with LMH6624MFX, LMH6629MF/NOPB offers higher bandwidth at the cost of stricter gain constraints, while ADA4898-1ARZ trades bandwidth for broader supply compatibility and lower unit cost-making LMH6624MFX optimal for 50–100 MHz ultrasound and instrumentation where noise, slew rate, and moderate gain stability are prioritized.
Availability
LMH6624MFX is available at Aetrix Electronics and suitable for ultrasound pre-amplifiers, instrumentation sense amplifiers, and wide band active filters requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.
Supply support for LMH6624MFX 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 headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in high-performance signal chain solutions.
The LMH6624MFX belongs to TI's high-speed precision amplifier product line, engineered specifically for applications demanding ultra-low noise, wide bandwidth, and robust DC accuracy-including medical imaging, test equipment, and professional audio infrastructure.
FAQ
What is the maximum stable closed-loop gain for LMH6624MFX?
The LMH6624MFX is specified as stable for closed-loop gains |AV| ≥10 in both inverting and non-inverting configurations. This is verified across temperature and supply ranges per the datasheet's "Stable for Closed Loop |AV| ≥10" feature statement and confirmed by frequency response plots showing adequate phase margin at AV = +10 with 500 Ω feedback.
Does LMH6624MFX support single-supply operation?
Yes, LMH6624MFX supports single-supply operation from 5 V to 12 V. The datasheet specifies this under "Supply Voltage Range (Single Supply) 5 V to 12 V", and input common-mode range extends to −0.5 V to +5.25 V at ±6 V supplies, enabling rail-to-rail input capability when biased appropriately in single-supply setups.
What is the input voltage noise density of LMH6624MFX at 1 MHz?
The LMH6624MFX has an input voltage noise density of 0.92 nV/√Hz at 1 MHz, as specified in both the "Features" section and Electrical Characteristics tables for ±2.5 V and ±6 V supply conditions. This value remains constant across the 100 kHz–10 MHz range per Figure 1 (Voltage Noise vs. Frequency).
Which package types are offered for LMH6624MFX?
The LMH6624MFX is offered exclusively in the SOT-23-5 package (2.90 mm × 1.60 mm body size), as confirmed in the "Device Information" table. The dual-channel LMH6626 uses SOIC-8 and VSSOP-8, but LMH6624MFX does not have SOIC-8 or other variants-only SOT-23-5 is orderable for this specific part number.
What is the typical slew rate of LMH6624MFX at AV = +10?
The typical slew rate of LMH6624MFX at AV = +10 is 400 V/μs under ±6 V supply conditions, as stated in the "Features" list and confirmed in Section 6.6 Electrical Characteristics. At ±2.5 V supply, the typical slew rate is 360 V/μs, reflecting supply-dependent performance scaling.
LMH6624MFX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 400V/µs
- Gain Bandwidth Product:
- 1.5 GHz
- -3db Bandwidth:
- 95 MHz
- Current - Input Bias:
- 13 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 12mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMH6624MFX FAQ
1.How can I place an order for LMH6624MFX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6624MFX 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 LMH6624MFX reliable?
The price and inventory of LMH6624MFX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6624MFX is usually 5 days.
3.What payment methods are accepted for LMH6624MFX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6624MFX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6624MFX?
LMH6624MFX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6624MFX 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 LMH6624MFX?
For technical support, including LMH6624MFX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6624MFX requirements.
6.How does Aetrix verify that LMH6624MFX is sourced from the original manufacturer or authorized distributors?
All LMH6624MFX 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 LMH6624MFX meets industry standards.
7.What is the process for return or replacement of LMH6624MFX?
All LMH6624MFX units undergo pre-shipment inspection (PSI). If there is an issue with LMH6624MFX, 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 LMH6624MFX part is unused and in its original packaging.
Return procedure for LMH6624MFX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6624MFX 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…
