My Inquiry
My Account
Texas Instruments LMH6683MAX
- Part No.:
- LMH6683MAX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6683MAX.pdf
- Description:
- IC OPAMP VFB 3 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,657
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6683MAX from Texas Instruments is a triple, high-speed, voltage-feedback operational amplifier optimized for video signal conditioning in single- or dual-supply systems. It delivers 190MHz −3dB bandwidth (A = +2, ±5V), 940V/μs slew rate, 0.01% differential gain error, and 0.08° differential phase error at NTSC 3.58MHz - enabling precision composite video amplification in CD/DVD players and portable video equipment.
For engineers reviewing the LMH6683MAX datasheet, LMH6683MAX pinout, LMH6683MAX application, or LMH6683MAX equivalent, key selection criteria include its rail-to-rail output swing (0.8V from rails into 2kΩ), input common-mode range extending 0.5V beyond V− and 1.7V from V+, and immunity to output phase reversal under input overdrive - critical for servo control and ADC buffer designs requiring robustness across supply and signal transients.
Technical Context
The LMH6683MAX employs a voltage-feedback topology with a class-AB input stage that delivers exponential current drive into the Miller compensation capacitor, enabling higher slew rate at larger input differentials - unlike conventional op-amps limited by saturated Gm. This architecture supports stable operation at gains ≥ +2 and ≤ −1 without external compensation.
Its VIP10 BiCMOS process enables low quiescent current (6.5mA per channel) while sustaining high output drive (±85/−80mA), wide input common-mode range (−5.5V to +3.3V on ±5V supplies), and low distortion (−82dBc HD3 at 5MHz, RL = 2kΩ). The device is explicitly characterized for video-critical parameters including DG/DP and cross-talk rejection (−78dB at 5MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 190MHz at A = +2 (±5V), enabling full NTSC/PAL video bandwidth with margin |
| Slew Rate | 940V/μs (±5V, A = +2), supporting fast transient response for 2VPP video pulses |
| Differential Gain Error | 0.01% (NTSC 3.58MHz, RL = 150Ω), preserving color saturation accuracy |
| Differential Phase Error | 0.08° (NTSC 3.58MHz, RL = 150Ω), maintaining hue fidelity across DC levels |
| Input Common-Mode Range | Extends 0.5V below V− and 1.7V from V+ (±5V), allowing ground-referenced video inputs |
| Output Voltage Swing | 0.8V from either rail into 2kΩ, maximizing dynamic range in single-supply video chains |
| Supply Current per Channel | 6.5mA (typical, no load), enabling low-power triple-amplifier integration |
Pinout & Package
LMH6683MAX is housed in a 14-pin SOIC (D) package with standard pin pitch (1.27mm), JEDEC MS-012AC compliant, and rated for −40°C to +85°C operation. Thermal resistance θJA is 145°C/W on standard PCB layout.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp 1) | High-impedance node for feedback configuration; supports inverting gain ≥ −1 |
| 2 | Non-Inverting Input (Amp 1) | Accepts input signals down to 0.5V below V−; immune to phase reversal on overdrive |
| 3 | Output (Amp 1) | Capable of ±85/−80mA drive; swings within 0.8V of rails into 2kΩ |
| 4 | V− (GND in single-supply) | Power reference for all three amplifiers; must be low-impedance |
| 5 | Non-Inverting Input (Amp 2) | Independent input stage; same CMVR and overload immunity as Pin 2 |
| 6 | Inverting Input (Amp 2) | Configurable for unity-gain stable inverting applications (A ≤ −1) |
| 7 | Output (Amp 2) | Electrically isolated from other outputs; cross-talk rejection −78dB at 5MHz |
| 8 | Output (Amp 3) | Third independent output; identical AC/DC specs to Pins 3 and 7 |
| 9 | Inverting Input (Amp 3) | Matched to Pins 1 and 6; supports cascaded video gain stages |
| 10 | Non-Inverting Input (Amp 3) | Same input voltage noise (12nV/√Hz @100kHz) and bias current (−20μA typ.) as other inputs |
| 11 | V+ | Positive supply rail; supports 3V–12V total supply range (V+ − V−) |
| 12 | NC | No internal connection; leave unconnected or tie to ground for mechanical stability |
| 13 | NC | No internal connection; no electrical function |
| 14 | NC | No internal connection; not used in LMH6683MAX die configuration |
Key Features
| Feature | Design Value |
|---|---|
| Video-optimized AC performance | 0.01% DG / 0.08° DP at NTSC 3.58MHz ensures broadcast-grade color fidelity in composite video paths |
| Phase reversal immunity | Outputs clamp at rail during input overvoltage - eliminates need for external clamping diodes in servo or current-sense buffers |
| Rail-to-rail output swing | 0.8V from V+ or V− into 2kΩ preserves >80% of supply voltage headroom for analog signal integrity |
| High output drive capability | +85/−80mA output current supports direct driving of 75Ω video lines or ADC input capacitors without buffering |
| Low distortion in inverting mode | −82dBc HD3 at 5MHz (RL = 2kΩ) enables high-fidelity signal acquisition in ADC front-ends |
Applications
| CD/DVD Video Output Stage | ADC Driver for High-Speed Sampling |
|---|---|
Use Scenario: Amplifying composite video signals from DVD decoder ICs before transmission to RCA connectors or internal display circuitry. IC Role / Device Role / Timing Role: Final-stage video buffer with gain = +2, DC-coupled, driving 75Ω coaxial cable. Use Value: 0.01% DG/0.08° DP prevents visible color shifts across brightness levels; 190MHz bandwidth accommodates full luminance/chroma spectrum. |
Use Scenario: Conditioning analog sensor outputs prior to sampling by 10–12-bit, 10–50MSPS ADCs in portable test equipment. IC Role / Device Role / Timing Role: Inverting unity-gain buffer isolating source impedance and driving ADC input capacitance (10–20pF). Use Value: 940V/μs slew rate settles 2V steps in <42ns (±0.1%), minimizing aperture uncertainty; low THD (−63dBc) preserves SNR. |
| Portable Video Display Interface | Current-Sense Amplifier for Power Rails |
Use Scenario: Driving LCD panel video inputs in battery-powered camcorders or handheld media players using single 5V supply. IC Role / Device Role / Timing Role: Single-supply triple op-amp providing RGB signal gain and level-shifting with shared V− = GND. Use Value: Input CMVR extends to −0.5V (beyond GND), enabling true ground-referenced video inputs; 6.5mA/channel minimizes battery drain. |
Use Scenario: Amplifying mV-level shunt voltage drops in 12V/24V industrial power supplies for real-time current monitoring. IC Role / Device Role / Timing Role: High-common-mode, low-offset difference amplifier (gain = 100) with V− referenced to system ground. Use Value: 75dB CMRR and ±1mV VOS ensure <1% current measurement error at 10A; phase reversal immunity prevents latch-up during load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6683MA | Same die, SOIC-14 tube packaging (95 pcs); identical electrical specs and pinout | No difference in circuit design or layout; only packaging and reel/tube logistics differ | Select LMH6683MA for low-volume prototyping or manual assembly where tape-and-reel is unnecessary |
| THS3203DR | Single-channel, 2.2GHz GBW, higher power (12.5mA), no DG/DP characterization; requires external compensation for A = +2 | Better for RF/IF gain blocks than video; unsuitable for NTSC/PAL due to lack of DG/DP validation | Choose THS3203DR only when >500MHz small-signal bandwidth is required and video fidelity is not critical |
Compared with LMH6683MA, LMH6683MAX offers identical performance in a large-tape-and-reel format (2500 pcs) optimized for SMT production; versus THS3203DR, it trades raw bandwidth for guaranteed video specifications, lower quiescent current, and plug-and-play stability in gain ≥ +2 configurations without external components.
Availability
LMH6683MAX is available at Aetrix Electronics and suitable for CD/DVD video output stages, portable video display interfaces, and current-sense amplifier circuits requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for LMH6683MAX 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-speed op-amp design and video signal chain solutions.
The LMH6683MAX belongs to TI's LMH66xx video op-amp family, engineered specifically for broadcast-quality composite video amplification, ADC buffering, and portable multimedia systems demanding low DG/DP, high slew rate, and single-supply operation.
FAQ
What is the maximum supply voltage range supported by the LMH6683MAX?
The LMH6683MAX operates with a total supply voltage (V+ − V−) from 3V to 12V. Absolute maximum ratings specify V+ − V− ≤ 12.6V, and voltage at any pin must remain within V− − 0.8V to V+ + 0.8V. For dual-supply use, ±5V (10V total) is the most common configuration validated for 190MHz bandwidth and 0.01% DG performance. The LMH6683MAX maintains full functionality across the entire −40°C to +85°C temperature range within these limits.
Does the LMH6683MAX require external compensation for unity-gain stable operation?
No, the LMH6683MAX is internally compensated and unity-gain stable in non-inverting configuration (A ≥ +1). It is also stable for inverting gains of −1 and greater, as confirmed in the datasheet's "Stability" section and typical performance plots. No external compensation capacitor or resistor is needed for standard video gain settings (e.g., A = +2 or A = −1), simplifying layout and reducing BOM count. The LMH6683MAX achieves this via optimized VIP10 process design and controlled dominant-pole placement.
Can the LMH6683MAX drive a 75Ω video load directly?
Yes, the LMH6683MAX can drive a 75Ω load directly, delivering ±40mA minimum output current at 1V from either rail (per Electrical Characteristics table). Measured output swing is 3.75V high / −3.50V low into 75Ω on ±5V supplies - sufficient for standard 1VPP composite video. However, differential gain and phase are specified at RL = 150Ω; for 75Ω systems, verify DG/DP in final layout due to increased loading effects on frequency response. The LMH6683MAX's −78dB crosstalk rejection also prevents inter-channel interference in multi-video-path designs.
How does the LMH6683MAX handle input overvoltage conditions?
The LMH6683MAX is designed to be immune to output phase reversal when input voltages exceed the specified common-mode range - a critical feature for servo control and current-sense applications. During overdrive, the output clamps predictably near the supply rail rather than inverting polarity. This behavior is verified across temperature and supply conditions. Note that exceeding Absolute Maximum Ratings (e.g., VIN differential > ±2.5V or voltage at pins beyond V− − 0.8V/V+ + 0.8V) may cause permanent damage. The LMH6683MAX includes no integrated input protection diodes; external clamping is recommended only for ESD or extreme transients beyond datasheet limits.
Is the LMH6683MAX pin-compatible with other triple op-amps like the LM324 or TL074?
No, the LMH6683MAX is not pin-compatible with legacy quad or triple op-amps such as LM324 or TL074. It uses a dedicated 14-pin SOIC footprint (D package) with specific pin assignments for three independent amplifiers, shared supplies, and no dedicated shutdown or offset-null pins. Its pinout matches only the LMH6683 family (e.g., LMH6683MA, LMH6683MT). Substituting LMH6683MAX into an LM324 layout would result in incorrect connections, missing power routing, and functional failure. Always use the official SOIC-14 pin diagram from the LMH6683MAX datasheet for PCB design.
LMH6683MAX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 3
- Output Type:
- -
- Slew Rate:
- 940V/µs
- Gain Bandwidth Product:
- 120 MHz
- -3db Bandwidth:
- 190 MHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 6.5mA (x3 Channels)
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMH6683MAX FAQ
1.How can I place an order for LMH6683MAX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6683MAX 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 LMH6683MAX reliable?
The price and inventory of LMH6683MAX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6683MAX is usually 5 days.
3.What payment methods are accepted for LMH6683MAX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6683MAX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6683MAX?
LMH6683MAX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6683MAX 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 LMH6683MAX?
For technical support, including LMH6683MAX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6683MAX requirements.
6.How does Aetrix verify that LMH6683MAX is sourced from the original manufacturer or authorized distributors?
All LMH6683MAX 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 LMH6683MAX meets industry standards.
7.What is the process for return or replacement of LMH6683MAX?
All LMH6683MAX units undergo pre-shipment inspection (PSI). If there is an issue with LMH6683MAX, 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 LMH6683MAX part is unused and in its original packaging.
Return procedure for LMH6683MAX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6683MAX 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…
