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Texas Instruments LMH6619QMAKX/NOPB
- Part No.:
- LMH6619QMAKX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6619QMAKX/NOPB.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LMH6619QMAKX/NOPB from Texas Instruments is a dual, rail-to-rail input/output operational amplifier optimized for high-speed, low-power signal conditioning in automotive and industrial systems. 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 max input offset voltage, and operates from 2.7 V to 11 V. It serves as an ADC driver in 12-bit mega-sample data acquisition systems.
For engineers reviewing the LMH6619QMAKX/NOPB datasheet, LMH6619QMAKX/NOPB pinout, LMH6619QMAKX/NOPB application, or LMH6619QMAKX/NOPB equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification (−40°C to +105°C), 0.01% settling time of 120 ns, 100 dBc SFDR at 100 kHz, rail-to-rail output swing within 37 mV of ground on single 5 V supply, and ability to drive 150 Ω video loads without external compensation.
Technical Context
The LMH6619QMAKX/NOPB uses a voltage-feedback topology with balanced inputs and high open-loop gain (>85 dB), enabling precision active filter design and stable unity-gain operation. Its input common-mode range extends 200 mV beyond both rails, supporting true single-supply operation.
It features internal compensation for stability with capacitive loads up to 30 pF and delivers ±35 mA linear output current. The amplifier maintains 15 MHz 0.1 dB bandwidth at AV = +2 and achieves <0.1% differential gain/phase error at 4.43 MHz-critical for STB and TV video signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 130 MHz at AV = +1, RL = 1 kΩ - enables wideband sensor signal amplification and fast DAC buffering |
| Slew rate | 55 V/µs - supports clean 2 VPP transient response with minimal distortion in video and ADC front-ends |
| Supply current per channel | 1.25 mA at VS = 5 V - allows dual-channel high-speed performance within tight power budgets |
| Input offset voltage | ±0.75 mV max at 25°C - ensures DC accuracy in precision current sense and active filter applications |
| 0.01% settling time | 120 ns for 2 V step - meets timing requirements for 8–14-bit ADCs sampling at >5 MSPS |
| Spurious-free dynamic range | 100 dBc at f = 100 kHz, VOUT = 2 VPP - preserves SNR in high-fidelity analog front-ends |
| Rail-to-rail I/O | Input CMVR = −0.2 V to 5.2 V, output swing to within 37 mV of rails - maximizes dynamic range on 5 V single supply |
Pinout & Package
LMH6619QMAKX/NOPB is housed in an 8-pin SOIC package (SOIC-8) with standard pin spacing (1.27 mm pitch) and thermal resistance θJA = 160°C/W. This surface-mount package supports automated assembly and provides adequate power dissipation for continuous 1.5 mA/channel operation at +105°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT B) | Channel B output | Delivers rail-to-rail buffered signal; capable of sourcing/sinking ±35 mA into 150 Ω loads |
| 2 (−IN B) | Channel B inverting input | Differential input node; high impedance (8 MΩ) and low input capacitance (1.5 pF) minimize phase shift |
| 3 (+IN B) | Channel B non-inverting input | Accepts common-mode voltages from −0.2 V to 5.2 V on 5 V supply - enables ground-referenced sensing |
| 4 (V−) | Negative supply rail | Supports dual-supply (±1.5 V to ±5.5 V) or single-supply (ground reference) operation |
| 5 (V+) | Positive supply rail | Operates from 2.7 V to 11 V; PSRR >84 dB suppresses supply noise coupling into signal path |
| 6 (−IN A) | Channel A inverting input | Electrically isolated from Channel B; crosstalk rejection >80 dB at 5 MHz prevents inter-channel interference |
| 7 (+IN A) | Channel A non-inverting input | Matches Pin 3 characteristics; supports matched dual-channel configurations like single-ended-to-differential conversion |
| 8 (OUT A) | Channel A output | Independent output stage; drives up to 30 pF directly - eliminates need for external isolation resistors |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualification | Validated for automotive applications operating from −40°C to +105°C ambient temperature |
| Rail-to-rail input and output | Enables full-scale signal utilization on low-voltage supplies (e.g., 3.3 V or 5 V) without level-shifting circuitry |
| 10 nV/√Hz input voltage noise | Preserves signal integrity in low-amplitude sensor interfaces and high-gain transimpedance stages |
| 120 ns 0.01% settling time | Meets timing closure for 12-bit ADCs sampling at ≥8.3 MSPS with no pipeline delay penalty |
| Stable driving of 150 Ω loads | Eliminates external series resistors in video line drivers and allows direct connection to coaxial transmission lines |
| 80 dB crosstalk rejection | Ensures channel independence in dual-channel applications such as stereo audio buffers or differential ADC front-ends |
Applications
| ADC Driver | DAC Buffer |
|---|---|
|
Use Scenario: Driving the analog input of a 12-bit, 10 MSPS SAR ADC in an automotive battery management system. IC Role / Device Role / Timing Role: High-speed buffer isolating the ADC sample capacitor from source impedance; provides fast settling (<120 ns) and low distortion (100 dBc SFDR). Use Value: Enables accurate digitization of fast transient cell voltage measurements without aperture jitter or harmonic corruption. |
Use Scenario: Buffering the output of a 10-bit video DAC in a set-top box HDMI transmitter interface. IC Role / Device Role / Timing Role: Rail-to-rail output stage delivering 1 VPP composite video signal into 75 Ω load with <0.1% differential gain/phase error. Use Value: Maintains broadcast-grade color fidelity and sync pulse integrity across temperature and supply variations. |
| Active Filter | Current Sense Amplifier |
|
Use Scenario: Implementing a 2nd-order Sallen-Key low-pass filter in a motor control feedback loop. IC Role / Device Role / Timing Role: Precision voltage-feedback op-amp with >85 dB open-loop gain and stable unity-gain response for predictable pole placement. Use Value: Achieves sharp roll-off and minimal passband ripple without external compensation components. |
Use Scenario: Amplifying shunt voltage in a 48 V industrial power supply with 50 mV full-scale range. IC Role / Device Role / Timing Role: Low-offset (±0.75 mV), low-drift (0.8 µV/°C) amplifier with rail-to-rail input accepting common-mode up to 48 V via resistor network. Use Value: Delivers ±0.5% current measurement accuracy over −40°C to +105°C without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6612QMA/NOPB | Single-channel version; identical specs except 1.25 mA/ch supply current applies to one channel only | Preferred where board space or cost optimization favors single-channel implementation | Select when only one high-speed channel is needed - same footprint compatibility but lower total power draw |
| OPA2350UA/2K5 | Lower bandwidth (38 MHz), higher supply current (5.5 mA/ch), wider offset range (±1.5 mV), same SOIC-8 package | Better suited for general-purpose precision applications than high-frequency video or ADC driving | Choose for cost-sensitive industrial sensors where speed <40 MHz suffices and DC accuracy dominates |
Compared with LMH6619QMAKX/NOPB, LMH6612QMA/NOPB offers identical performance in half the channel count and package size, while OPA2350UA/2K5 trades bandwidth and power efficiency for broader offset tolerance and legacy design familiarity-making it suitable only where speed is secondary.
Availability
LMH6619QMAKX/NOPB is available at Aetrix Electronics and suitable for automotive ADAS sensor interfaces, industrial data acquisition systems, and broadcast video equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMH6619QMAKX/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 automotive-grade product development and manufacturing expertise.
The LMH6619QMAKX/NOPB belongs to TI's PowerWise® high-performance analog amplifier family, engineered specifically for energy-efficient, high-fidelity signal conditioning in automotive and industrial environments demanding AEC-Q100 compliance.
FAQ
What is the operating temperature range for LMH6619QMAKX/NOPB?
The LMH6619QMAKX/NOPB is AEC-Q100 Grade 2 qualified and specified to operate reliably from −40°C to +105°C ambient temperature. This rating is validated across all electrical parameters including bandwidth, slew rate, and offset voltage, making LMH6619QMAKX/NOPB suitable for under-hood automotive applications and industrial control cabinets without derating.
Does LMH6619QMAKX/NOPB support single-supply operation?
Yes, LMH6619QMAKX/NOPB supports true single-supply operation down to 2.7 V. Its rail-to-rail input extends 200 mV beyond both supply rails, and its output swings to within 37 mV of ground on a 5 V supply with 150 Ω load - enabling direct interfacing with unipolar sensors and ADCs without level-shifting circuitry.
Can LMH6619QMAKX/NOPB drive a 75 Ω video load directly?
LMH6619QMAKX/NOPB is characterized to drive 150 Ω loads robustly, but driving 75 Ω requires external series termination. At 5 V supply, its output can source/sink ±35 mA linearly; a 75 Ω load drawing ±66.7 mA at 5 VPP exceeds this limit. For 75 Ω video, use LMH6619QMAKX/NOPB with a 75 Ω series resistor at the output to maintain signal integrity and avoid clipping.
What is the typical input bias current of LMH6619QMAKX/NOPB?
The LMH6619QMAKX/NOPB exhibits bipolar input stage behavior with input bias current dependent on common-mode voltage: −1.5 µA to −2.4 µA at VCM = −4.5 V (pnp-active), and +1.0 µA to +1.9 µA at VCM = +4.5 V (npn-active). This asymmetry must be accounted for in high-impedance transducer interfaces to avoid offset errors.
Is LMH6619QMAKX/NOPB pin-compatible with other dual SOIC op-amps?
LMH6619QMAKX/NOPB uses the industry-standard 8-pin SOIC pinout (OUT A, −IN A, +IN A, V−, V+, −IN B, +IN B, OUT B), matching generic dual op-amp layouts. However, due to its high-speed design and specific internal compensation, direct pin-for-pin replacement with slower op-amps (e.g., TL072 or LM358) may cause instability or degraded settling performance - always verify loop stability and transient response in the target application.
LMH6619QMAKX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 57V/µs
- Gain Bandwidth Product:
- 140 MHz
- -3db Bandwidth:
- 140 MHz
- Current - Input Bias:
- 1.5 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 1.3mA (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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMH6619QMAKX/NOPB FAQ
1.How can I place an order for LMH6619QMAKX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6619QMAKX/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 LMH6619QMAKX/NOPB reliable?
The price and inventory of LMH6619QMAKX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6619QMAKX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6619QMAKX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6619QMAKX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6619QMAKX/NOPB?
LMH6619QMAKX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6619QMAKX/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 LMH6619QMAKX/NOPB?
For technical support, including LMH6619QMAKX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6619QMAKX/NOPB requirements.
6.How does Aetrix verify that LMH6619QMAKX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6619QMAKX/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 LMH6619QMAKX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6619QMAKX/NOPB?
All LMH6619QMAKX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6619QMAKX/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 LMH6619QMAKX/NOPB part is unused and in its original packaging.
Return procedure for LMH6619QMAKX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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