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Renesas EL5420CRZ
- Part No.:
- EL5420CRZ
- Manufacturer:
- Renesas
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
EL5420CRZ.pdf
- Description:
- IC OPAMP VFB 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,834
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Product details
Overview
EL5420CRZ from Intersil is a quad rail-to-rail input-output operational amplifier optimized for TFT-LCD voltage reference buffering. It delivers 12MHz bandwidth, 10V/µs slew rate, and ±30mA output drive per channel while consuming only 500µA per amplifier on 4.5V–16.5V supplies. Its beyond-the-rails input capability (±0.5V beyond VS) and rail-to-rail output swing enable full dynamic range in single- or dual-supply configurations.
For engineers reviewing the EL5420CRZ datasheet, EL5420CRZ pinout, EL5420CRZ application, or EL5420CRZ equivalent, key selection considerations include its 14-lead TSSOP package with standard op-amp pinout, -40°C to +125°C operation, unity-gain stability, and verified performance in capacitive-load driving and high-channel-isolation scenarios up to 75dB at 5MHz.
Technical Context
The EL5420CRZ implements a high-voltage CMOS voltage-feedback architecture with fully differential input stages enabling common-mode input extension beyond supply rails. Each of its four independent amplifiers features matched internal compensation for guaranteed unity-gain stability across temperature and supply voltage variations.
Its output stage uses complementary bipolar-CMOS hybrid design to achieve symmetrical ±30mA sourcing/sinking capability and <500ns settling to ±0.1% under 2V step conditions. Channel separation remains ≥75dB at 5MHz, confirming low crosstalk in multi-channel analog signal routing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (-3dB) | 12MHz - supports video-rate signal conditioning and fast-settling ADC buffering without phase loss. |
| Slew Rate | 10V/µs - enables clean reproduction of 1–2Vpp signals up to ~1.5MHz without slew-induced distortion. |
| Supply Range | 4.5V to 16.5V - compatible with 5V, ±5V, and 12V systems; supports direct integration into LCD bias rails. |
| Input Offset Voltage | 2mV (min), 12mV (max) - ensures ≤0.24% gain error in precision buffer configurations at room temperature. |
| Output Drive | ±30mA - drives 10kΩ || 12pF loads typical in TFT gate-line buffers without external boost. |
| Operating Temp | -40°C to +125°C - qualified for automotive display modules and industrial HMI front panels. |
| Channel Separation | 75dB @ 5MHz - maintains signal integrity in multi-channel gamma correction circuits with minimal inter-channel coupling. |
Pinout & Package
The EL5420CRZ is housed in a RoHS-compliant, 14-lead TSSOP package (M14.173) with exposed thermal pad connected to VS−. Pinout follows industry-standard quad op-amp configuration for drop-in replacement compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUTA | Amplifier A Output | Drives first gamma reference node; capable of ±30mA load current with rail-to-rail swing. |
| VINA− | Amplifier A Inverting Input | Accepts feedback from VOUTA; supports beyond-the-rails common-mode range down to VS− − 0.5V. |
| VINA+ | Amplifier A Non-Inverting Input | Receives first gamma reference voltage; immune to phase reversal within VS− − 0.5V to VS+ + 0.5V. |
| VS− | Negative Power Supply | Reference for all four amplifiers; thermal pad internally tied to this pin for enhanced heat dissipation. |
| VS+ | Positive Power Supply | Supplies all channels; accepts up to +16.5V; PSRR ≥60dB minimizes supply noise coupling. |
| VOUTB | Amplifier B Output | Drives second gamma reference; electrically isolated from VOUTA with ≥75dB channel separation at 5MHz. |
| VINB− | Amplifier B Inverting Input | Feedback node for channel B; shares same input impedance (1GΩ) and bias current (2–50nA) as other channels. |
| VINB+ | Amplifier B Non-Inverting Input | Receives second gamma reference; identical CMIR and offset specs ensure matched channel behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full-scale signal handling from 0V to VS in single-supply TFT-LCD bias generation without level-shifting circuitry. |
| Beyond-the-rails input | Accepts inputs 500mV below VS− or above VS+, critical for monitoring supply rails or sensing overvoltage conditions. |
| Unity-gain stable | Eliminates need for external compensation in voltage-follower configurations used for reference buffering. |
| Low quiescent current | 500µA per amplifier allows battery-powered portable displays to sustain >100 hours of continuous operation. |
| Pb-free / RoHS | M14.173 TSSOP package uses 100% matte tin e3 termination, compatible with SnPb and Pb-free reflow profiles. |
Applications
| TFT-LCD Gamma Reference Buffering | Portable Instrumentation Signal Conditioning |
|---|---|
Use Scenario: Driving 12–24 gamma correction voltage nodes in high-resolution LCD panels with tight matching requirements. IC Role / Device Role / Timing Role: Quad op-amp configured as unity-gain followers, each buffering a distinct DAC output to a panel gamma line. Use Value: 75dB channel separation prevents crosstalk between adjacent gamma voltages; rail-to-rail output ensures full 0–15V range utilization. | Use Scenario: Amplifying sensor outputs (e.g., thermistor, strain gauge) in handheld test equipment with limited PCB area. IC Role / Device Role / Timing Role: Four independent low-noise, low-power amplifiers performing simultaneous signal gain, filtering, and level-shifting. Use Value: 12MHz bandwidth supports fast-sampling multichannel data acquisition; 500µA/channel extends battery life without sacrificing speed. |
| Touch-Screen Display Analog Front-End | ADC/DAC Interface Buffering |
Use Scenario: Conditioning analog touch coordinate signals (X+/X−, Y+/Y−) prior to sigma-delta ADC conversion in resistive touch controllers. IC Role / Device Role / Timing Role: Dual-channel differential receiver (two amplifiers) plus two reference buffers for ADC reference and bias generation. Use Value: Beyond-the-rails input handles electrode voltage excursions during touch scanning; 10V/µs slew rate preserves transient response fidelity. | Use Scenario: Isolating high-precision DAC outputs from varying load impedances in programmable power supply control loops. IC Role / Device Role / Timing Role: Unity-gain buffer placed directly at DAC output to prevent loading-induced gain error and settling delay. Use Value: 2mV input offset minimizes DC error; ±30mA drive sustains 0.1% accuracy even with 100nF decoupling capacitance on output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower bandwidth (6.4MHz), higher supply current (600µA/channel), wider offset range (±3mV typ). | Not recommended for >1MHz video-rate buffering; better suited for low-frequency sensor interfaces. | Select TLV2464IDR only if cost sensitivity outweighs bandwidth and power requirements. |
| AD8604ARUZ | Higher precision (300µV max VOS), lower drive (±25mA), narrower supply range (2.7–5.5V). | Optimized for low-voltage precision instrumentation, not high-voltage LCD bias rails. | Choose AD8604ARUZ when sub-millivolt offset and low noise dominate over output drive and supply flexibility. |
Compared with TLV2464IDR and AD8604ARUZ, the EL5420CRZ uniquely balances 12MHz bandwidth, ±30mA drive, and 4.5–16.5V operation-making it the only option among the three qualified for TFT-LCD gamma reference buffering at full panel resolution.
Availability
EL5420CRZ is available at Aetrix Electronics and suitable for TFT-LCD drive circuits, portable instrumentation, and ADC/DAC interface buffering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for EL5420CRZ 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
Intersil Corporation is a precision analog and power management semiconductor provider, now part of Renesas Electronics, with expertise in high-voltage, rail-to-rail, and low-power op-amp design.
The EL5420CRZ belongs to Intersil's EL5x20 family of rail-to-rail op-amps engineered specifically for TFT-LCD reference buffering, where high output drive, wide supply range, and channel isolation are mandatory.
FAQ
What is the maximum supply voltage rating for the EL5420CRZ?
The EL5420CRZ has an absolute maximum supply voltage rating of +18V between VS+ and VS−. However, its specified operating range is 4.5V to 16.5V. Operation at 16.5V is fully characterized and supported across the full -40°C to +125°C temperature range, making EL5420CRZ suitable for 15V LCD bias rail applications without derating.
Does the EL5420CRZ require external compensation for unity-gain stability?
No, the EL5420CRZ is internally compensated and unity-gain stable across all operating conditions. The datasheet confirms stable operation with AV = +1 and 10kΩ || 12pF loads, delivering 12MHz bandwidth and 50° phase margin. No external capacitors or resistors are needed for basic voltage-follower or inverter configurations using EL5420CRZ.
How does the EL5420CRZ handle inputs exceeding the supply rails?
The EL5420CRZ supports beyond-the-rails input operation: its common-mode input range extends to VS− − 0.5V and VS+ + 0.5V. Within this range, the device remains phase-reversal immune. However, inputs exceeding VS+ + 0.6V or VS− − 0.6V risk forward-biasing internal ESD diodes and potential damage-so EL5420CRZ must be used with clamping or limiting circuitry if overvoltage events are expected.
What is the thermal resistance (θJA) of the EL5420CRZ in its 14-lead TSSOP package?
The EL5420CRZ in the 14-lead TSSOP package (M14.173) has a typical junction-to-ambient thermal resistance (θJA) of 93°C/W when mounted on a high effective thermal conductivity test board in free air. This value is confirmed in the Absolute Maximum Ratings table on page 4 of FN7186 Rev 8.00 and informs safe power dissipation limits for EL5420CRZ in compact PCB layouts.
Can unused amplifiers in the EL5420CRZ be left floating?
No, unused amplifiers in the EL5420CRZ must not be left floating. The datasheet explicitly recommends configuring each unused channel as a unity-gain follower: connect the inverting input directly to the output, and tie the non-inverting input to a stable reference (e.g., ground or mid-supply). This prevents input-stage saturation, reduces supply current variation, and avoids unintended oscillation-ensuring predictable behavior of active channels in EL5420CRZ.
EL5420CRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- EL5420
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- 12 MHz
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 500µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 16.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
EL5420CRZ FAQ
1.How can I place an order for EL5420CRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for EL5420CRZ 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 EL5420CRZ reliable?
The price and inventory of EL5420CRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL5420CRZ is usually 5 days.
3.What payment methods are accepted for EL5420CRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL5420CRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL5420CRZ?
EL5420CRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL5420CRZ 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 EL5420CRZ?
For technical support, including EL5420CRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL5420CRZ requirements.
6.How does Aetrix verify that EL5420CRZ is sourced from the original manufacturer or authorized distributors?
All EL5420CRZ 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 EL5420CRZ meets industry standards.
7.What is the process for return or replacement of EL5420CRZ?
All EL5420CRZ units undergo pre-shipment inspection (PSI). If there is an issue with EL5420CRZ, 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 EL5420CRZ part is unused and in its original packaging.
Return procedure for EL5420CRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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