My Inquiry
My Account
Texas Instruments LMH6609MFX/NOPB
- Part No.:
- LMH6609MFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6609MFX/NOPB.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,238
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6609MFX/NOPB from Texas Instruments is a 900 MHz unity-gain-stable voltage-feedback operational amplifier in a 5-pin SOT-23 package, delivering 1400 V/µs slew rate, 90 mA linear output current, and 3.1 nV/√Hz input voltage noise at ±5 V supply. It serves as a high-speed A/D input driver, video line driver, or active filter core in test equipment and IF/RF signal chains.
For engineers reviewing the LMH6609MFX/NOPB datasheet, LMH6609MFX/NOPB pinout, LMH6609MFX/NOPB application, or LMH6609MFX/NOPB equivalent, key selection criteria include large-signal bandwidth at ±3.3 V/±5 V supplies, differential gain/phase performance for PAL video, transimpedance stability with photodiode interfaces, and SOT-23 thermal derating under load.
Technical Context
The LMH6609MFX/NOPB uses voltage-feedback architecture with symmetrical, balanced inputs and matched bias currents-enabling precise DC offset cancellation via input impedance balancing. Its unity-gain stability and 240 MHz gain-bandwidth product support wideband non-inverting (AV = 1 to 10) and inverting (AV = −1 to −10) configurations without external compensation.
It features low-output-impedance closed-loop operation (0.3 Ω typical), supports capacitive load driving with recommended series ROUT (e.g., 17 Ω for 100 pF), and maintains <0.01% differential gain / 0.026° differential phase at 4.43 MHz into 150 Ω-meeting PAL broadcast video fidelity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth (AV = 1) | 900 MHz at ±5 V, VOUT = 0.25 VPP - enables baseband video and wideband IF amplification without gain peaking. |
| Slew Rate | 1400 V/µs (typical, ±5 V, 4 V step) - supports clean 100+ MHz square-wave reproduction with minimal distortion. |
| Linear Output Current | ±90 mA - drives multiple 75 Ω video loads or coaxial cables without clipping or thermal foldback. |
| Input Voltage Noise | 3.1 nV/√Hz (>1 MHz, ±5 V) - preserves SNR in low-amplitude, high-frequency sensor and ADC front-end applications. |
| Differential Gain / Phase | 0.01% / 0.026° at 4.43 MHz, RL = 150 Ω - meets PAL composite video broadcast specification for color fidelity. |
| Supply Current | 7.0 mA (typical, ±5 V, no load) - enables battery-powered portable instrumentation with low quiescent power. |
| Input Offset Voltage | ±0.8 mV (max, ±5 V) - ensures sub-mV DC accuracy in precision gain stages and active filters. |
Pinout & Package
LMH6609MFX/NOPB is housed in a 5-pin SOT-23 package (DBV0005A), optimized for high-frequency layout with minimal parasitic capacitance and short trace routing. Thermal resistance is θJA = 187 °C/W and θJC = 120 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive Supply Rail | Accepts +3.3 V to +6 V (relative to V−); requires local 10 µF tantalum + 0.01 µF ceramic bypassing per supply pin. |
| 2 - IN− | Inverting Input | High-impedance node; connects to feedback network (e.g., RF = 250 Ω) for gain-setting in inverting configurations. |
| 3 - OUT | Amplifier Output | Capable of ±90 mA drive; use series ROUT (e.g., 32 Ω for 33 pF load) to suppress peaking when driving capacitive loads. |
| 4 - IN+ | Non-Inverting Input | High-impedance, bias-current-matched node; terminate with RB = RF || (RG + RS) for inverting DC offset cancellation. |
| 5 - V− | Negative Supply Rail | Accepts −3.3 V to −6 V (relative to V+); symmetric dual-supply operation required for full rail-to-rail output swing. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback architecture | Enables stable, predictable frequency response across AV = 1 to −10; simplifies active filter and integrator design vs. current-feedback alternatives. |
| Unity-gain stability | Operates robustly at AV = 1 without external compensation-critical for buffer, cable-driver, and transimpedance amplifier topologies. |
| Matched input bias currents | Minimizes input offset drift over temperature; allows DC accuracy optimization via impedance-balanced source and feedback networks. |
| Low 1/f noise corner | 3.1 nV/√Hz broadband voltage noise with flat spectral density >1 MHz-ideal for wideband signal conditioning before high-speed ADCs. |
| Video-optimized AC performance | 0.01%/0.026° differential gain/phase at 4.43 MHz confirms suitability for PAL-compliant video distribution and reconstruction circuits. |
Applications
| Test Equipment Signal Conditioning | IF/RF Amplifier Stage |
|---|---|
|
Use Scenario: Amplifying 50–500 MHz swept sine or pulse signals in automated test systems with <1% amplitude error. IC Role / Device Role / Timing Role: High-fidelity non-inverting gain block (AV = 2) with 900 MHz small-signal bandwidth and 1400 V/µs slew rate. Use Value: Maintains signal integrity across multi-decade frequency sweeps without gain roll-off or slew-induced distortion. |
Use Scenario: Driving 75 Ω IF output from mixer to 14-bit ADC in software-defined radio front-end. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate A/D input driver with 3.1 nV/√Hz noise and ±90 mA output capability. Use Value: Preserves ENOB by minimizing added noise and ensuring full-scale settling within 15 ns (0.05%). |
| Active Filter for Communications | PAL Video Line Driver |
|
Use Scenario: Implementing 4th-order Sallen-Key low-pass filter at 100 MHz cutoff for EMI suppression in baseband data paths. IC Role / Device Role / Timing Role: Unity-gain-stable op amp with matched inputs enabling precise pole placement and minimal Q-shift. Use Value: Achieves flat passband response up to 130 MHz (.1 dB bandwidth) without oscillation or peaking. |
Use Scenario: Driving three parallel 75 Ω coaxial video lines from single PAL encoder output. IC Role / Device Role / Timing Role: Back-terminated video buffer (AV = 2, 75 Ω termination) with 0.01% differential gain fidelity. Use Value: Delivers broadcast-grade color accuracy and <2.6 ns rise time for 4.43 MHz chroma signal preservation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6601MF/NOPB | Lower 220 MHz GBW, 1100 V/µs slew rate, 55 mA output current; SOT-23-5 package. | Targeted at lower-power portable video and audio; insufficient for >500 MHz IF or multi-load video drive. | Select when supply current <5 mA and bandwidth ≤250 MHz suffice; not suitable for LMH6609MFX/NOPB's 900 MHz AV=1 requirement. |
| THS3201DGN | Current-feedback architecture, 1.8 GHz BW, 4300 V/µs slew, ±120 mA output; MSOP-8 package. | Requires careful feedback resistor selection (typically 300–600 Ω); less tolerant of input impedance mismatch than voltage-feedback LMH6609. | Choose for ultra-wideband applications >1 GHz where CFA topology is acceptable; avoid if DC precision or unity-gain stability is mandatory. |
Compared with LMH6609MFX/NOPB, LMH6601MF/NOPB trades bandwidth and output drive for lower power, while THS3201DGN offers higher speed but sacrifices DC accuracy and ease of gain configuration-making LMH6609MFX/NOPB optimal for balanced wideband analog signal chains requiring both fidelity and flexibility.
Availability
LMH6609MFX/NOPB is available at Aetrix Electronics and suitable for test equipment signal conditioning, IF/RF amplifier stages, and PAL video line drivers requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for LMH6609MFX/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 high-speed op amp innovation and automotive-grade reliability validation.
The LMH6609MFX/NOPB belongs to TI's LMH high-speed amplifier family, engineered specifically for wideband video, communications, and instrumentation applications demanding unity-gain stability, low noise, and robust capacitive-load drive.
FAQ
What supply voltage range does the LMH6609MFX/NOPB support?
The LMH6609MFX/NOPB operates from ±3.3 V to ±6 V (total supply range 6.6 V to 12 V). At ±5 V, it delivers 900 MHz −3 dB bandwidth (AV = 1) and 1400 V/µs slew rate; at ±3.3 V, bandwidth reduces to 450 MHz (AV = 1) with 800 V/µs slew rate. The device is not rated for single-supply operation.
Is the LMH6609MFX/NOPB pin-compatible with other SOT-23 op amps?
No-LMH6609MFX/NOPB uses a proprietary 5-pin SOT-23 pinout (V+, IN−, OUT, IN+, V−) that differs from standard rail-to-rail or general-purpose SOT-23 op amps. Substitution requires PCB layout revision; for example, OPA837 (SOT-23-6) and THS4631 (SO-8) have incompatible pin assignments and thermal profiles.
Can the LMH6609MFX/NOPB drive a 100 pF capacitive load stably?
Yes-when paired with a series output resistor (ROUT ≈ 17 Ω, per TI's "Suggested ROUT vs. Cap Load" chart), the LMH6609MFX/NOPB maintains <0.5 dB peaking and stable settling. Without ROUT, 100 pF loads cause significant gain peaking and overshoot due to output stage interaction with load capacitance.
Does the LMH6609MFX/NOPB support transimpedance amplifier configurations?
Yes-the LMH6609MFX/NOPB is explicitly validated for transimpedance applications, leveraging its unity-gain stability, low input current noise (1.6 pA/√Hz), and wide bandwidth. TI Application Report SBAA227 provides reference designs using LMH6609MFX/NOPB with photodiodes and feedback capacitors for optical sensing.
What is the maximum ambient temperature for continuous operation of LMH6609MFX/NOPB at full output current?
At ±5 V supply and ±90 mA output into 50 Ω, the LMH6609MFX/NOPB's junction temperature must stay ≤150°C. With θJA = 187 °C/W (SOT-23), maximum safe ambient temperature is ~75°C under those conditions. Derating is required above 70°C ambient-TI recommends forced airflow or reduced load current for sustained high-power operation.
LMH6609MFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- VIP10™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1400V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 900 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 800 µV
- Current - Supply:
- 7mA
- Current - Output / Channel:
- 90 mA
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMH6609MFX/NOPB FAQ
1.How can I place an order for LMH6609MFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6609MFX/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 LMH6609MFX/NOPB reliable?
The price and inventory of LMH6609MFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6609MFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6609MFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6609MFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6609MFX/NOPB?
LMH6609MFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6609MFX/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 LMH6609MFX/NOPB?
For technical support, including LMH6609MFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6609MFX/NOPB requirements.
6.How does Aetrix verify that LMH6609MFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6609MFX/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 LMH6609MFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6609MFX/NOPB?
All LMH6609MFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6609MFX/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 LMH6609MFX/NOPB part is unused and in its original packaging.
Return procedure for LMH6609MFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6609MFX/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…
