My Inquiry
My Account
Texas Instruments LMH6626MMX
- Part No.:
- LMH6626MMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMH6626MMX.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,538
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6626MMX from Texas Instruments is a dual-channel ultra-low-noise, wideband voltage-feedback operational amplifier in VSSOP-8 package, delivering 1.3 GHz gain bandwidth, 1.0 nV/√Hz input voltage noise, and ±0.7 mV max input offset voltage over temperature. It enables high-fidelity signal conditioning in ultrasound pre-amplifiers and magnetic storage read channels where dynamic range and SNR preservation are critical.
For engineers reviewing the LMH6626MMX datasheet, LMH6626MMX pinout, LMH6626MMX application, or LMH6626MMX equivalent, this page provides verified pin functions, real-world distortion performance at 10 MHz (−63 dBc HD2, −80 dBc HD3), supply flexibility (±2.5 V to ±6 V), thermal resistance (166 °C/W), and two validated alternative op-amps for low-noise wideband designs.
Technical Context
The LMH6626MMX implements a traditional voltage-feedback topology with balanced differential inputs, enabling stable operation at closed-loop gains ≥10 in both inverting and non-inverting configurations. Its architecture delivers 81 dB open-loop gain, 95 dB CMRR, and 88 dB PSRR - critical for rejecting common-mode interference in precision analog front-ends.
It features internal bias current cancellation circuitry optimized for non-inverting gain stages and supports rail-to-rail output swing (±4.65 V no load, ±4.3 V into 100 Ω) across its full operating temperature range (−40°C to +125°C), with crosstalk rejection of −75 dB at 1 MHz between channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 1.3 GHz - enables stable closed-loop gain ≥10 up to ~130 MHz for high-speed filtering and amplification |
| Input Voltage Noise | 1.0 nV/√Hz @ 1 MHz - preserves signal integrity in low-level sensor interfaces like ultrasound transducers |
| Slew Rate | 400 V/μs @ AV = +10 - supports fast large-signal transient response without slewing distortion |
| Supply Range | ±2.5 V to ±6 V dual supply - compatible with legacy ±5 V systems and modern low-voltage precision rails |
| Output Swing | ±4.3 V into 100 Ω - delivers >8.6 VPP drive capability for ADC driver stages with minimal headroom loss |
| Harmonic Distortion | −63 dBc HD2 / −80 dBc HD3 @ 10 MHz - ensures clean spectral purity in RF and IF signal chains |
| Input Offset Voltage | ±0.7 mV max over temp - reduces DC error accumulation in multi-stage amplifiers and active filters |
Pinout & Package
VSSOP-8 (DBV) package: 3.00 mm × 3.00 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Channel A output - drives external load or next stage; capable of ±100 mA sourcing/sinking |
| 2 | IN A− | Inverting input Channel A - connects to feedback network in inverting configuration |
| 3 | IN A+ | Non-inverting input Channel A - referenced to system ground or bias voltage in non-inverting config |
| 4 | V− | Negative supply rail - must be decoupled with 0.1 μF ceramic capacitor near pin |
| 5 | IN B+ | Non-inverting input Channel B - independent of Channel A; enables dual-path signal processing |
| 6 | IN B− | Inverting input Channel B - isolated input node; supports differential or single-ended B-channel use |
| 7 | OUT B | Channel B output - fully independent output with same drive strength and settling as OUT A |
| 8 | V+ | Positive supply rail - requires local 0.1 μF ceramic + bulk capacitance for high-frequency stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input voltage noise | 1.0 nV/√Hz enables detection of sub-microvolt signals in medical and instrumentation pre-amplifiers |
| Stable for |AV| ≥10 | Eliminates need for external compensation in high-gain configurations, reducing BOM count and layout area |
| High crosstalk rejection | −75 dB @ 1 MHz prevents inter-channel interference in dual-channel applications like stereo audio or I/Q demodulation |
| Wide supply range | ±2.5 V to ±6 V operation allows reuse across legacy and new designs without power rail redesign |
| Low input offset drift | ±0.2 μV/°C ensures <1.5 μV total drift over −40°C to +125°C - critical for uncalibrated industrial sensors |
Applications
| Instrumentation Sense Amplifiers | Ultrasound Pre-amps |
|---|---|
Use Scenario: Amplifying low-amplitude, high-frequency signals from strain gauges or RTDs in automated test equipment. IC Role / Device Role / Timing Role: Primary gain stage with ultra-low noise floor and high CMRR to reject EMI in noisy factory environments. Use Value: 1.0 nV/√Hz input noise and 95 dB CMRR preserve microvolt-level resolution without requiring chopper stabilization. | Use Scenario: Receiving echo signals from piezoelectric transducers in portable diagnostic ultrasound systems. IC Role / Device Role / Timing Role: First-stage low-noise amplifier before time-gain control (TGC) and ADC sampling. Use Value: 1.3 GHz GBW and −80 dBc HD3 at 10 MHz maintain pulse fidelity and dynamic range for accurate tissue imaging. |
| Magnetic Tape & Disk Pre-amps | Professional Audio Systems |
Use Scenario: Reading analog playback signals from high-density magnetic storage heads with narrow track widths. IC Role / Device Role / Timing Role: Wideband analog front-end amplifier with minimal added jitter and phase distortion. Use Value: 400 V/μs slew rate and 18 ns 0.1% settling support >10 MHz data rates while preserving edge integrity. | Use Scenario: Line-level signal conditioning and driver stage in studio-grade microphone preamplifiers and digital mixers. IC Role / Device Role / Timing Role: Dual-channel gain block handling left/right analog paths with matched performance. Use Value: −75 dB crosstalk and ±0.7 mV VOS matching enable precise stereo imaging and low THD+N in 24-bit audio paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-noise wideband op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA/NOPB | Higher GBW (3.2 GHz), lower noise (0.87 nV/√Hz), but higher supply current (22 mA/ch) and SOIC-8 only | Better suited for >200 MHz closed-loop designs; less optimal for battery-powered portable ultrasound | Select LMH6629MA/NOPB when bandwidth >2 GHz is required and board space allows SOIC-8 |
| ADA4898-2ARZ | Lower noise (0.9 nV/√Hz), wider supply range (±3 V to ±12 V), but slower slew rate (270 V/μs) and larger VSSOP footprint | Preferred for DC-coupled precision instrumentation with wide supply tolerance; not ideal for fast pulse applications | Choose ADA4898-2ARZ when ultra-low drift (<0.1 μV/°C) and rail flexibility outweigh speed requirements |
Compared with LMH6626MMX, LMH6629MA/NOPB offers higher bandwidth at increased power cost, while ADA4898-2ARZ trades speed for superior DC precision and supply adaptability - making LMH6626MMX the optimal balance for portable, high-SNR, medium-bandwidth analog front-ends.
Availability
LMH6626MMX is available at Aetrix Electronics and suitable for ultrasound pre-amplifiers, instrumentation sense amplifiers, and professional audio systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LMH6626MMX 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-performance op-amps and signal chain solutions.
The LMH6626MMX belongs to TI's LMH high-speed amplifier family, designed specifically for demanding low-noise, wideband applications including medical imaging, test equipment, and communications infrastructure.
FAQ
What is the maximum recommended supply voltage for LMH6626MMX?
The absolute maximum supply voltage (V+ − V−) for LMH6626MMX is 13.2 V, with recommended operating range of ±2.25 V to ±6.3 V. Operation at ±6 V yields optimal dynamic performance: 360 V/μs slew rate, 85 MHz −3dB bandwidth, and ±4.3 V output swing into 100 Ω - all confirmed in the official SNOSA42G datasheet Section 6.3 and 6.6.
Does LMH6626MMX require external compensation for unity-gain stability?
No, LMH6626MMX is not unity-gain stable. It is explicitly characterized and guaranteed stable only for closed-loop gains |AV| ≥10, as stated in the "Features" section and Section 8.1 of SNOSA42G. Attempting unity-gain configuration risks oscillation; minimum gain must be maintained using appropriate feedback resistor ratios.
What is the thermal resistance (RθJA) of LMH6626MMX in its VSSOP-8 package?
The junction-to-ambient thermal resistance (RθJA) for LMH6626MMX in the VSSOP-8 (DBV) package is 166 °C/W, per Section 6.4 of the SNOSA42G datasheet. This value assumes standard JEDEC 2S2P board conditions; actual thermal performance improves with PCB copper pour under the exposed pad.
How does LMH6626MMX perform in terms of harmonic distortion at 10 MHz?
At 10 MHz, with VO = 1 VPP into RL = 100 Ω, LMH6626MMX achieves −63 dBc second-harmonic distortion (HD2) and −80 dBc third-harmonic distortion (HD3) under ±6 V supply conditions (Section 6.6, SNOSA42G). This confirms its suitability for IF/RF signal chains where spectral purity is essential.
Is LMH6626MMX pin-compatible with other devices in the LMH662x family?
LMH6626MMX (VSSOP-8) shares identical pinout with LMH6626MME (SOIC-8) for all eight terminals, but is not pin-compatible with LMH6624 variants (SOT-23-5 or SOIC-8), which have different channel count and pin assignments. Pin compatibility is strictly limited to same-package dual-channel variants per TI's Device Information table.
LMH6626MMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- 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 (x2 Channels)
- Current - Output / Channel:
- 80 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:
- 8-VSSOP
LMH6626MMX FAQ
1.How can I place an order for LMH6626MMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6626MMX 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 LMH6626MMX reliable?
The price and inventory of LMH6626MMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6626MMX is usually 5 days.
3.What payment methods are accepted for LMH6626MMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6626MMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6626MMX?
LMH6626MMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6626MMX 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 LMH6626MMX?
For technical support, including LMH6626MMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6626MMX requirements.
6.How does Aetrix verify that LMH6626MMX is sourced from the original manufacturer or authorized distributors?
All LMH6626MMX 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 LMH6626MMX meets industry standards.
7.What is the process for return or replacement of LMH6626MMX?
All LMH6626MMX units undergo pre-shipment inspection (PSI). If there is an issue with LMH6626MMX, 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 LMH6626MMX part is unused and in its original packaging.
Return procedure for LMH6626MMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6626MMX 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…
