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Texas Instruments LMH6619MA/NOPB
- Part No.:
- LMH6619MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6619MA/NOPB.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:325
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Product details
Overview
LMH6619MA/NOPB from Texas Instruments is a dual, rail-to-rail input and output operational amplifier optimized for high-speed, low-power signal conditioning in precision analog front-ends. It delivers 130 MHz small-signal bandwidth, 55 V/µs slew rate, 1.25 mA per channel supply current at 5 V, ±0.75 mV input offset voltage (max), and 100 dBc SFDR at 100 kHz - enabling use as an ADC driver or video buffer in portable and industrial systems.
For engineers reviewing the LMH6619MA/NOPB datasheet, LMH6619MA/NOPB pinout, LMH6619MA/NOPB application, or LMH6619MA/NOPB equivalent, key selection criteria include its 8-pin SOIC package, −40°C to +125°C temperature grade, rail-to-rail swing within 37 mV of rails on single 5 V supply, and verified performance driving 150 Ω video loads and 1 kΩ ADC inputs with 120 ns 0.01% settling time.
Technical Context
The LMH6619MA/NOPB employs a voltage-feedback topology with balanced differential inputs and high open-loop gain (>84 dB), supporting stable unity-gain and inverting configurations without external compensation. Its input common-mode range extends 200 mV beyond both supply rails, and output drives up to 35 mA while maintaining rail-to-rail swing into 150 Ω loads.
Designed for low-noise, wide-dynamic-range applications, it features 10 nV/√Hz input voltage noise at 100 kHz, 1 pA/√Hz input current noise, and 80 dB crosstalk isolation between channels at 5 MHz - critical for dual-channel signal paths where inter-channel interference must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 130 MHz at AV = +1, RL = 1 kΩ - supports high-fidelity amplification of fast transient signals without phase distortion. |
| Slew Rate | 55 V/µs - enables clean reproduction of large-amplitude, high-frequency steps (e.g., video sync pulses) without slewing-induced distortion. |
| Supply Current per Channel | 1.25 mA typical at 5 V - allows dual-channel operation under tight power budgets in battery-powered instrumentation. |
| Input Offset Voltage | ±0.75 mV max at 25°C - ensures DC accuracy in precision sensor interfaces and low-gain signal chains without trimming. |
| 0.01% Settling Time | 120 ns for 2 V step - meets timing requirements for 8–14-bit mega-sample ADCs requiring fast acquisition windows. |
| Spurious-Free Dynamic Range | 100 dBc at f = 100 kHz, VOUT = 2 VPP - preserves SNR in high-resolution data acquisition systems with demanding spectral purity needs. |
| Rail-to-Rail Output Swing | Within 37 mV of ground rail on 5 V supply with 150 Ω load - maximizes dynamic range in single-supply systems without level-shifting circuitry. |
Pinout & Package
LMH6619MA/NOPB is housed in an 8-pin SOIC package (TI package code D0008A, JEDEC MS-012), with thermal resistance θJA = 160°C/W. The device has two fully independent amplifier channels, each with non-inverting and inverting inputs and output terminals, plus shared V+ and V− supply pins.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Output of Amplifier A - drives external load directly; capable of sourcing/sinking ±35 mA. |
| 2 | −IN A | Inverting input of Amplifier A - high-impedance node (8 MΩ) with 1.5 pF capacitance; sensitive to PCB layout parasitics. |
| 3 | +IN A | Non-inverting input of Amplifier A - same impedance and capacitance as −IN A; supports rail-to-rail common-mode input range. |
| 4 | V− | Negative supply rail - connects to ground (single supply) or negative voltage (dual supply); must be low-impedance. |
| 5 | V+ | Positive supply rail - operates from 2.7 V to 11 V; PSRR > 84 dB minimizes supply noise coupling. |
| 6 | −IN B | Inverting input of Amplifier B - electrically identical to −IN A; crosstalk to Channel A is ≤ −80 dB at 5 MHz. |
| 7 | +IN B | Non-inverting input of Amplifier B - matches +IN A performance; enables matched dual-path signal conditioning. |
| 8 | OUT B | Output of Amplifier B - independent of OUT A; no internal disable/shutdown function (unlike LMH6618). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends −0.2 V to +5.2 V on 5 V supply; output swings to within 37 mV of V− and 60 mV of V+ into 1 kΩ - eliminates need for level shifters in single-supply designs. |
| Low power-to-performance ratio | 130 MHz bandwidth at only 1.25 mA per channel - achieves >100 MHz/MW efficiency, ideal for thermally constrained portable equipment. |
| High output drive capability | ±35 mA linear output current with <0.17 Ω output resistance - directly drives 150 Ω video lines or 1 kΩ ADC inputs without external buffers. |
| Low distortion at video frequencies | 0.1% differential gain/phase error at 4.43 MHz - meets NTSC/PAL video amplifier specifications for STB and TV applications. |
| Extended temperature operation | Specified from −40°C to +125°C - qualified for industrial motor control, automotive body electronics, and outdoor instrumentation. |
Applications
| ADC Driver | DAC Buffer |
|---|---|
Use Scenario: Driving the analog input of a 12-bit, 10 MSPS SAR ADC in a data acquisition module. IC Role / Device Role / Timing Role: High-speed, low-distortion buffer that settles to 0.01% in 120 ns and maintains 100 dBc SFDR at 100 kHz. Use Value: Enables full utilization of ADC ENOB by minimizing aperture jitter and harmonic distortion introduced by the driver stage. |
Use Scenario: Isolating and amplifying the output of a 10-bit DAC in a programmable power supply control loop. IC Role / Device Role / Timing Role: Rail-to-rail output buffer delivering fast settling (<90 ns to 0.1%) and low offset drift (0.8 µV/°C) across temperature. Use Value: Preserves DAC monotonicity and linearity while providing sufficient drive strength for low-impedance feedback networks. |
| Active Filter | STB/TV Video Amplifier |
Use Scenario: Implementing a 4th-order Butterworth low-pass filter in medical ECG signal conditioning. IC Role / Device Role / Timing Role: Voltage-feedback op-amp configured in multiple stages with high GBW (54 MHz) and low noise (10 nV/√Hz). Use Value: Maintains filter Q-factor and cutoff accuracy without peaking or gain error due to limited open-loop gain roll-off. |
Use Scenario: Amplifying composite video signals in set-top box output stage before HDMI or CVBS transmission. IC Role / Device Role / Timing Role: Dual-channel video driver with 0.1% DG/DP at 4.43 MHz and 15 MHz 0.1 dB bandwidth in AV = +2 configuration. Use Value: Meets broadcast video fidelity standards without requiring external peaking or equalization components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3202D | Higher supply current (6.5 mA/ch), wider bandwidth (520 MHz), no rail-to-rail input - requires level-shifting for single-supply use. | Better suited for RF/IF signal chains requiring >200 MHz bandwidth; less optimal for low-power, rail-to-rail DC-coupled systems. | Select THS3202D when bandwidth >300 MHz is mandatory and power budget allows; avoid when rail-to-rail input or <2 mA/ch is required. |
| OPA2835IDR | Lower supply current (1.8 mA/ch), lower bandwidth (31 MHz), rail-to-rail I/O, integrated shutdown - lacks 130 MHz performance and 100 dBc SFDR. | Targeted at portable instrumentation with moderate speed needs; not suitable for >10 MSPS ADC drivers or video applications. | Choose OPA2835IDR for ultra-low-power dual op-amp roles below 50 MHz; reject for LMH6619MA/NOPB's 130 MHz/100 dBc use cases. |
Compared with THS3202D and OPA2835IDR, LMH6619MA/NOPB uniquely balances 130 MHz bandwidth, rail-to-rail operation, 1.25 mA/ch power, and 100 dBc SFDR - making it the only option among the three qualified for precision, low-power, high-fidelity dual-channel signal conditioning across industrial and video domains.
Availability
LMH6619MA/NOPB is available at Aetrix Electronics and suitable for ADC driver, video amplifier, active filter, and DAC buffer applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMH6619MA/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 and embedded processing technologies, with decades of expertise in high-performance op-amps and precision signal chain solutions.
The LMH6619MA/NOPB belongs to TI's PowerWise® family of energy-efficient amplifiers, engineered specifically for high-speed, low-power analog signal conditioning in industrial, test & measurement, and video infrastructure systems.
FAQ
What is the operating voltage range for LMH6619MA/NOPB?
The LMH6619MA/NOPB operates from 2.7 V to 11 V total supply voltage (V+ to V−). It functions reliably across this range in both single-supply (e.g., 5 V with V− = GND) and dual-supply (e.g., ±5 V) configurations, with specified performance at 3 V, 5 V, and ±5 V per the datasheet's electrical characteristics tables.
Does LMH6619MA/NOPB have a shutdown pin?
No, LMH6619MA/NOPB does not include a shutdown or disable pin. That feature is present only on the single-channel LMH6618 variant (e.g., LMH6618MA/NOPB). The LMH6619MA/NOPB is a dual op-amp with fixed enable operation - all functionality remains active whenever powered within its specified supply and temperature ranges.
What is the maximum capacitive load LMH6619MA/NOPB can drive without instability?
The LMH6619MA/NOPB can drive up to 30 pF loads without external compensation, as confirmed in the datasheet's "Output Stage" description. For larger capacitive loads (e.g., >50 pF), a series isolation resistor (RISO) of 25–100 Ω is recommended - Figure 9 in the SNOSAV7E datasheet shows stable closed-loop response with RISO = 50 Ω and CL = 100 pF.
Is LMH6619MA/NOPB suitable for driving 150 Ω video loads?
Yes, LMH6619MA/NOPB is explicitly characterized for 150 Ω video loads: output swing remains within 198 mV of either rail at 5 V supply, differential gain/phase error is ≤0.1%/0.1° at 4.43 MHz, and 0.1 dB bandwidth reaches 15 MHz in AV = +2 configuration - meeting standard-definition video amplifier requirements per the datasheet's Applications and Electrical Characteristics sections.
What is the thermal resistance θJA for LMH6619MA/NOPB in its SOIC package?
The junction-to-ambient thermal resistance (θJA) for LMH6619MA/NOPB in the 8-pin SOIC package (D0008A) is 160°C/W, as specified in the "Package Thermal Resistance" table of the SNOSAV7E datasheet. This value assumes standard JEDEC 2-layer board mounting conditions and is used to calculate maximum allowable power dissipation at a given ambient temperature.
LMH6619MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 57V/µs
- Gain Bandwidth Product:
- 58 MHz
- -3db Bandwidth:
- 140 MHz
- Current - Input Bias:
- 1.4 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 1.45mA (x2 Channels)
- 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:
- 8-SOIC
LMH6619MA/NOPB FAQ
1.How can I place an order for LMH6619MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6619MA/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 LMH6619MA/NOPB reliable?
The price and inventory of LMH6619MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6619MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6619MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6619MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6619MA/NOPB?
LMH6619MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6619MA/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 LMH6619MA/NOPB?
For technical support, including LMH6619MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6619MA/NOPB requirements.
6.How does Aetrix verify that LMH6619MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6619MA/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 LMH6619MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6619MA/NOPB?
All LMH6619MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6619MA/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 LMH6619MA/NOPB part is unused and in its original packaging.
Return procedure for LMH6619MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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