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Monolithic Power Systems Inc. MP5221DK-LF-Z
- Part No.:
- MP5221DK-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MP5221DK-LF-Z.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,030
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Product details
Overview
MP5221DK-LF-Z from Monolithic Power Systems is a dual-channel, high-speed, rail-to-rail input-output operational amplifier optimized for TFT-LCD voltage reference buffering. It delivers 20MHz –3dB bandwidth, 45V/μs slew rate, and operates from 3.2V to 20V single supply at 1.6mA per amplifier, with output swing within 100mV of both rails. Used in portable display drive circuits requiring fast settling and wide dynamic range.
For engineers reviewing the MP5221DK-LF-Z datasheet, MP5221DK-LF-Z pinout, MP5221DK-LF-Z application, or MP5221DK-LF-Z equivalent, key selection criteria include rail-to-rail input/output capability, 50mA output drive, unity-gain stability, thermal performance in MSOP-8, and compatibility with TFT-LCD bias generation and ADC buffer stages.
Technical Context
The MP5221DK-LF-Z integrates two independent high-slew-rate amplifiers sharing a common supply domain, each featuring complementary PNP/NPN input stage switching to enable true rail-to-rail input operation (–0.5V to VS+0.5V). Its output stage uses Class AB topology capable of sourcing/sinking up to 50mA while maintaining linearity near supply rails.
Designed for single-supply systems, it achieves 85dB CMRR and 95dB PSRR at DC, with phase margin of 50° at unity gain and 70dB channel separation at 5MHz-critical for multi-channel LCD gamma correction where crosstalk must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3dB Bandwidth | 20MHz - supports fast transient response in LCD column driver buffers and active filter stages. |
| Slew Rate | 45V/μs - enables accurate reproduction of high-frequency video signals without distortion. |
| Supply Voltage Range | 3.2V to 20V - accommodates both low-power portable displays and industrial-grade panel supplies. |
| Supply Current per Amp | 1.6mA - balances speed and power efficiency for battery-operated handheld displays. |
| Output Swing | Within 100mV of rails - maximizes usable dynamic range in single-supply 10-bit+ gamma DAC interfaces. |
| Input Common-Mode Range | –0.5V to VS+0.5V - allows direct connection to grounded sensors or DAC outputs without level-shifting. |
| Channel Separation | 70dB at 5MHz - prevents interference between adjacent gamma correction channels in dual-output LCD drivers. |
Pinout & Package
The MP5221DK-LF-Z is housed in an 8-pin MSOP package (3.0mm × 3.0mm, 0.65mm pitch), optimized for high-density TFT-LCD timing controller PCB layouts. Thermal resistance θJA is 150°C/W on standard 4-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VINA–) | Inverting Input A | Differential input node for Channel A; accepts rail-to-rail common-mode voltage. |
| 2 (VINA+) | Non-Inverting Input A | High-impedance input (1GΩ) for precision feedback or sensor interface. |
| 3 (VS–) | Negative Supply Rail | Ground or negative rail connection; supports single- or split-supply operation. |
| 4 (VOUTA) | Output A | Capable of ±50mA drive; swings to within 100mV of VS– or VS+ under load. |
| 5 (VOUTB) | Output B | Independent output with identical drive strength and rail-swing capability as Channel A. |
| 6 (VINB+) | Non-Inverting Input B | Second high-Z input for dual-channel gamma calibration or differential signaling. |
| 7 (VINB–) | Inverting Input B | Matches Pin 1 functionality for Channel B; enables matched dual-opamp configurations. |
| 8 (VS+) | Positive Supply Rail | Primary power input; supports up to 20V with internal overvoltage protection to 23V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with dual differential pair | Enables direct interfacing with grounded DACs or ADC references without external level shifters. |
| Unity-gain stable architecture | Eliminates need for external compensation in buffer and follower configurations used in LCD bias chains. |
| 50mA output drive capability | Drives heavy capacitive loads (e.g., column lines) and maintains signal integrity during fast transitions. |
| Low input bias current (0.5–2μA) | Preserves accuracy in high-impedance feedback networks typical in precision gamma voltage dividers. |
| High PSRR (95dB at DC) | Rejects switching noise from adjacent DC-DC converters powering TFT gate drivers. |
Applications
| TFT-LCD Gamma Correction | Portable Instrumentation Signal Conditioning |
|---|---|
Use Scenario: Generating precise grayscale voltage references for 8–10-bit LCD panels using resistor ladders driven by DAC outputs. IC Role / Device Role / Timing Role: Dual-channel buffer isolating DAC outputs and driving high-capacitance gamma voltage distribution lines. Use Value: Rail-to-rail input accepts DAC zero-scale output; 45V/μs slew ensures <500ns settling for 10-bit accuracy across 1024-step gamma tables. | Use Scenario: Amplifying low-level sensor signals (e.g., thermistor, photodiode) before ADC sampling in handheld test equipment. IC Role / Device Role / Timing Role: Single-supply transimpedance or difference amplifier operating from 3.3V or 5V battery rails. Use Value: 20MHz bandwidth captures fast transients; 1.6mA quiescent current extends battery life without sacrificing speed. |
| Touch-Screen Display Driver Interface | Wireless LAN Baseband Filtering |
Use Scenario: Buffering analog touch coordinate voltages from resistive overlay controllers into SAR ADC inputs. IC Role / Device Role / Timing Role: Low-noise, fast-settling unity-gain buffer placed between touch controller and ADC front-end. Use Value: 100mV rail-swing headroom preserves full-scale resolution; 70dB channel separation prevents X/Y axis crosstalk. | Use Scenario: Implementing active low-pass filtering in 2.4GHz WLAN baseband I/Q signal paths prior to RF upconversion. IC Role / Device Role / Timing Role: High-linearity, wide-bandwidth op amp in 2nd-order Sallen-Key filter configuration. Use Value: 50° phase margin ensures stable filter response; 20MHz GBW supports >5MHz cutoff with minimal group delay variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV722MMX/NOPB | Lower bandwidth (10MHz), lower slew rate (5.5V/μs), higher supply current (1.25mA per amp at 5V). | Not suitable for >5MHz video signal buffering; limited drive strength (45mA) reduces margin in capacitive LCD loads. | Select when cost sensitivity outweighs speed requirements and supply voltage stays ≤5.5V. |
| ADA4891-2ARZ | Higher bandwidth (225MHz), higher slew rate (170V/μs), but requires ≥2.7V supply and lacks rail-to-rail input beyond VS–0.1V. | Overqualified for LCD gamma buffers; unsuitable for ground-referenced DAC interfaces due to input range limitation. | Select only for high-frequency active filters or composite video reconstruction where speed dominates. |
Compared with LMV722MMX/NOPB and ADA4891-2ARZ, the MP5221DK-LF-Z uniquely balances 20MHz bandwidth, true rail-to-rail input/output, and 3.2–20V operation-making it optimal for single-supply TFT-LCD bias generation where DAC compatibility, power flexibility, and settling time are jointly critical.
Availability
MP5221DK-LF-Z is available at Aetrix Electronics and suitable for TFT-LCD display modules, portable instrumentation front-ends, and wireless baseband filtering circuits requiring stable component supply across extended temperature ranges.
Supply support for MP5221DK-LF-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan.
The MP5221 belongs to MPS's high-speed precision op amp product line, engineered specifically for display interface and portable analog signal chain applications demanding rail-to-rail operation and robust output drive.
FAQ
What is the maximum output current capability of MP5221DK-LF-Z?
The MP5221DK-LF-Z can source or sink up to 50mA per channel continuously, with peak short-circuit current reaching 70mA. This drive strength supports direct connection to moderate-capacitance LCD column lines and active filter loads without external boost stages.
Does MP5221DK-LF-Z require external compensation for unity-gain operation?
No. The MP5221DK-LF-Z is internally compensated and unity-gain stable, eliminating the need for external capacitors or resistors in buffer, follower, or gain-of-one configurations commonly used in LCD reference buffering and sensor signal conditioning.
Can MP5221DK-LF-Z operate from a 3.3V supply in portable applications?
Yes. The device is fully specified down to 3.2V single supply, delivering full 20MHz bandwidth and 45V/μs slew rate at 3.3V. Its 1.6mA per amplifier quiescent current makes it suitable for battery-powered electronic notebooks and PDAs.
What is the input common-mode voltage range at 20V supply?
At VS = 20V, the input common-mode range extends from –0.5V to +20.5V, enabling direct interfacing with grounded DAC outputs and signals exceeding the positive rail by up to 0.5V-critical for precision gamma voltage generation in high-voltage LCD panels.
How does MP5221DK-LF-Z handle channel-to-channel crosstalk in dual-channel use?
It provides 70dB channel separation at 5MHz, achieved through isolated input and output stages and optimized substrate layout. This minimizes interference between gamma correction channels in dual-output LCD timing controllers and prevents visual artifacts in high-resolution displays.
Is MP5221DK-LF-Z RoHS compliant and halogen-free?
Yes. The "-LF-Z" suffix denotes lead-free, RoHS-compliant packaging with halogen-free molding compound, meeting IPC/JEDEC J-STD-609A Class 1 requirements for green electronics manufacturing.
MP5221DK-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 45V/µs
- Gain Bandwidth Product:
- 14 MHz
- -3db Bandwidth:
- 20 MHz
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.6mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 3.2 V
- Voltage - Supply Span (Max):
- 20 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
MP5221DK-LF-Z FAQ
1.How can I place an order for MP5221DK-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP5221DK-LF-Z 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 MP5221DK-LF-Z reliable?
The price and inventory of MP5221DK-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5221DK-LF-Z is usually 5 days.
3.What payment methods are accepted for MP5221DK-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5221DK-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP5221DK-LF-Z?
MP5221DK-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP5221DK-LF-Z 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 MP5221DK-LF-Z?
For technical support, including MP5221DK-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5221DK-LF-Z requirements.
6.How does Aetrix verify that MP5221DK-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP5221DK-LF-Z 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 MP5221DK-LF-Z meets industry standards.
7.What is the process for return or replacement of MP5221DK-LF-Z?
All MP5221DK-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP5221DK-LF-Z, 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 MP5221DK-LF-Z part is unused and in its original packaging.
Return procedure for MP5221DK-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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