My Inquiry
My Account
Texas Instruments LMH6702MFX/NOPB
- Part No.:
- LMH6702MFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6702MFX/NOPB.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,989
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6702MFX/NOPB from Texas Instruments is a 1.7-GHz current-feedback operational amplifier optimized for ultra-low harmonic distortion in high-fidelity signal paths. It delivers −100 dBc HD2 and −96 dBc HD3 at 5 MHz (SOT-23), 3100 V/µs slew rate, and 1.83 nV/√Hz input voltage noise - enabling use as a flash ADC driver in radar receivers and high-resolution video systems.
For engineers reviewing the LMH6702MFX/NOPB datasheet, LMH6702MFX/NOPB pinout, LMH6702MFX/NOPB application, or LMH6702MFX/NOPB equivalent, key selection criteria include its SOT-23 package–dependent distortion performance, 13.4 ns settling to 0.1%, ±5 V supply operation, and current-feedback architecture requiring 237 Ω feedback resistor for optimal stability and bandwidth.
Technical Context
The LMH6702MFX/NOPB employs current-feedback topology with gain-setting determined primarily by feedback resistor value (optimized at 237 Ω), not closed-loop gain - delivering 1.7 GHz small-signal bandwidth at AV = 2 and minimal bandwidth degradation up to AV = +10. Its VIP10™ complementary bipolar process enables unity-gain stability without external compensation.
Harmonic distortion is highly sensitive to package parasitics and PCB layout: SOT-23 achieves −100 dBc HD2 at 5 MHz due to shorter bond wires versus SOIC (−87 dBc), and supply decoupling must isolate high-frequency ground return paths from input circuitry to avoid coupling-induced distortion degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3-dB Bandwidth | 1.7 GHz at VOUT = 0.5 VPP - supports full-power analog signal conditioning up to UHF band |
| Slew Rate | 3100 V/µs - enables clean 6-VPP step response with 1.7 ns fall time into 100 Ω |
| HD2 / HD3 @ 5 MHz | −100 dBc / −96 dBc (SOT-23) - meets 10-bit SFDR requirements through 60 MHz |
| Input Voltage Noise | 1.83 nV/√Hz >1 MHz - preserves SNR in wideband IF amplifiers and transimpedance stages |
| Settling Time | 13.4 ns to 0.1% - satisfies timing budget for ≥75 MSPS flash ADC front ends |
| Supply Current | 12.5 mA at ±5 V - balances speed and power in thermally constrained SOT-23 layouts |
| Output Current | 80 mA - drives 100 Ω loads directly, eliminating need for output buffer stages |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size) with exposed pad for thermal enhancement; pin-compatible with industry-standard 5-pin SOT-23 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts +4 V to +6 V; requires low-ESR 6.8 µF bulk + 0.1 µF ceramic decoupling per TI layout guidelines |
| V− | Negative supply input | Accepts −4 V to −6 V; separate ground return path mandatory to minimize HD2 coupling |
| +IN | Non-inverting input | 1.4 MΩ input resistance, 1.6 pF capacitance - matched impedance critical for DC accuracy |
| −IN | Inverting input | Current-feedback summing node; sets loop gain with RF; bias current drift −10 nA/°C |
| OUT | Amplifier output | 30 mΩ closed-loop output impedance; series resistor RS required for capacitive ADC loads |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables 1.7 GHz bandwidth with stable unity-gain operation and insensitivity to closed-loop gain variations |
| SOT-23–optimized distortion | −100 dBc HD2 at 5 MHz - 13 dB improvement over SOIC variant due to reduced bond-wire coupling |
| Low-noise transimpedance capability | 1.83 nV/√Hz + 3.0 pA/√Hz non-inverting noise - supports precision photodiode and DAC current-output buffering |
| Fast settling with minimal overshoot | 13.4 ns to 0.1% with 0% overshoot - eliminates post-processing correction in time-critical sampling systems |
| Robust capacitive load drive | Stable into 100 pF with proper RS snubbing - enables direct interface to switched-capacitor ADC inputs |
Applications
| Flash ADC Driver | D-A Transimpedance Buffer |
|---|---|
|
Use Scenario: Driving the sampling input of a 10-bit, 100+ MSPS flash ADC in a software-defined radio receiver. IC Role / Device Role / Timing Role: Wideband gain stage providing low-distortion, fast-settling analog signal conditioning immediately prior to sampling. Use Value: −100 dBc HD2 ensures converter's dynamic range is not degraded by amplifier distortion; 13.4 ns settling aligns with sub-10-ns aperture uncertainty budgets. |
Use Scenario: Converting current-mode output of a high-speed DAC into low-impedance voltage signal for RF upconversion. IC Role / Device Role / Timing Role: Transimpedance amplifier with current-feedback topology enabling wideband flat gain and minimal phase nonlinearity. Use Value: 1.83 nV/√Hz input noise and −67 dBc OIM3 at 75 MHz preserve EVM in QAM-64/256 modulated waveforms. |
| Wide Dynamic Range IF Amp | Radar Receiver Front End |
|
Use Scenario: Amplifying intermediate frequency signals (40–150 MHz) in cellular base station transceivers with >80 dB spurious-free dynamic range. IC Role / Device Role / Timing Role: High-linearity IF gain block operating at AV = +2 with 237 Ω feedback network. Use Value: 720 MHz large-signal bandwidth at 2 VPP and −64 dBc HD3 at 60 MHz maintain SFDR across entire LTE/WCDMA bands. |
Use Scenario: Low-noise, high-fidelity amplification of pulsed Doppler returns in X-band pulse-Doppler radar systems. IC Role / Device Role / Timing Role: First-stage receiver amplifier following LNA, requiring ultra-low additive phase noise and group delay variation. Use Value: 0.09° linear phase deviation DC–100 MHz and −158 dBm/Hz integrated noise floor preserve target resolution and clutter rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6703MF/NOPB | Higher supply current (15.5 mA), improved HD2 (−103 dBc @ 5 MHz), same SOT-23-5 package | Better distortion at cost of 24% higher power; preferred for <100 MSPS systems where thermal headroom exists | Select when −3 dBc HD2 margin is required and power budget allows; identical pinout and layout |
| THS3201DBVR | Lower bandwidth (1.8 GHz small-signal), higher slew rate (5700 V/µs), SO-8 package only | Superior transient response but larger footprint and no SOT-23 option; requires different decoupling strategy | Choose for applications needing faster edge fidelity with board space for SOIC; not drop-in compatible |
Compared with LMH6702MFX/NOPB, LMH6703MF/NOPB offers measurable HD2 improvement in same footprint but increases quiescent power, while THS3201DBVR trades package compatibility for higher slew rate and requires PCB redesign - making LMH6702MFX/NOPB the optimal balance of SOT-23 integration, distortion, and power in space-constrained RF signal chains.
Availability
LMH6702MFX/NOPB is available at Aetrix Electronics and suitable for radar front ends, high-speed data acquisition systems, and high-resolution video signal conditioning requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for LMH6702MFX/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 company designing analog ICs, embedded processors, and system-on-chip solutions for industrial, automotive, and communications markets.
The LMH6702MFX/NOPB belongs to TI's high-speed current-feedback op amp product line, engineered specifically for ultra-low distortion and wideband signal integrity in demanding RF, test equipment, and high-speed data converter interface applications.
FAQ
What is the recommended feedback resistor value for LMH6702MFX/NOPB?
The LMH6702MFX/NOPB is optimized for a 237 Ω feedback resistor in both inverting and non-inverting configurations. Using lower values causes excessive ringing in the pulse response, while higher values reduce bandwidth. TI's reference designs (e.g., Figure 24 and Figure 25) confirm 237 Ω delivers best trade-off of stability, bandwidth, and distortion for LMH6702MFX/NOPB.
Does LMH6702MFX/NOPB support single-supply operation?
No, LMH6702MFX/NOPB is specified only for dual-supply operation from ±4 V to ±6 V. Its input common-mode range is ±1.9 V to ±2.2 V, and output swing is ±3.2 V to ±3.5 V into 100 Ω - all referenced to ground. Single-supply use would violate absolute maximum ratings and degrade distortion and bandwidth performance.
How does package choice affect harmonic distortion in LMH6702MFX/NOPB?
Package significantly impacts distortion: LMH6702MFX/NOPB in SOT-23 achieves −100 dBc HD2 at 5 MHz, while the SOIC variant measures −87 dBc under identical conditions. This 13 dB difference arises from shorter internal bond wires in SOT-23, reducing supply-to-input coupling - a key mechanism for 2nd-harmonic generation in LMH6702MFX/NOPB.
Can LMH6702MFX/NOPB drive capacitive loads directly?
LMH6702MFX/NOPB requires a series resistor (RS) between output and capacitive load (e.g., ADC input) to ensure stability. TI's Figure 11 shows RS vs. CL curves; for 10 pF loads, RS ≈ 10 Ω minimizes settling time. Direct connection risks peaking, overshoot, or oscillation - especially with >5 pF parasitic capacitance typical in PCB traces.
What is the maximum output current capability of LMH6702MFX/NOPB?
LMH6702MFX/NOPB delivers ±80 mA continuous output current into resistive loads, verified per Electrical Characteristics table (ICC = 12.5 mA, IO = 80 mA). This supports direct driving of 100 Ω termination networks and low-impedance transmission lines without external buffers - critical for maintaining signal integrity in high-speed video and IF amplifier applications.
LMH6702MFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 3100V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.7 GHz
- Current - Input Bias:
- 6 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 12.5mA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 10 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
LMH6702MFX/NOPB FAQ
1.How can I place an order for LMH6702MFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6702MFX/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 LMH6702MFX/NOPB reliable?
The price and inventory of LMH6702MFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6702MFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6702MFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6702MFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6702MFX/NOPB?
LMH6702MFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6702MFX/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 LMH6702MFX/NOPB?
For technical support, including LMH6702MFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6702MFX/NOPB requirements.
6.How does Aetrix verify that LMH6702MFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6702MFX/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 LMH6702MFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6702MFX/NOPB?
All LMH6702MFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6702MFX/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 LMH6702MFX/NOPB part is unused and in its original packaging.
Return procedure for LMH6702MFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6702MFX/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…
