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Analog Devices Inc. AD8567ACPZ-REEL
- Part No.:
- AD8567ACPZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
AD8567ACPZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,359
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Product details
Overview
AD8567ACPZ-REEL from Analog Devices is a quad-channel, rail-to-rail input/output operational amplifier optimized for LCD VCOM and grayscale reference buffer applications. It operates from 4.5 V to 16 V single supply, delivers 35 mA continuous output current per channel, achieves 6 V/µs slew rate, and maintains rail-to-rail output swing with <10 mV offset voltage - enabling precise DC-coupled biasing in high-resolution LCD panels.
For engineers reviewing the AD8567ACPZ-REEL datasheet, AD8567ACPZ-REEL pinout, AD8567ACPZ-REEL application, or AD8567ACPZ-REEL equivalent, key selection criteria include its 16-Lead LFCSP thermal pad layout, 250 mA peak output drive per channel, −40°C to +85°C automotive-grade temperature range, and verified large capacitive load stability up to 1 µF without external compensation.
Technical Context
The AD8567ACPZ-REEL employs a dual-rail bipolar input stage with PNP differential pairs (Q4–Q5 and Q10–Q11) and diode protection networks to enable true rail-to-rail input operation across −0.5 V to VS + 0.5 V. Its complementary common-source output stage allows output voltages to reach within 5 mV of both rails under 5 mA load.
This architecture supports stable unity-gain operation into ≥1 µF capacitive loads - critical for LCD VCOM driver settling - while maintaining 65° phase margin and 5 MHz gain bandwidth product at 10 kΩ/10 pF loading. The device exhibits no output phase reversal and features input bias current polarity inversion near supply rails, confirmed by Figure 29 in Rev. H datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 16 V single supply - enables direct integration into 12 V LCD panel power domains without LDO pre-regulation. |
| Rail-to-Rail Output Swing | VOH = VS − 42 mV (at 5 mA, VS = 16 V); VOL = 42 mV - ensures full dynamic range utilization in VCOM buffering with minimal headroom loss. |
| Continuous Output Current | 35 mA per amplifier - sustains steady-state grayscale voltage generation across multiple column drivers without thermal derating. |
| Slew Rate | 6 V/µs - supports fast transient response during VCOM voltage transitions in high-refresh-rate LCDs (e.g., 120 Hz panels). |
| Input Offset Voltage | 10 mV max - limits grayscale banding error to <0.1% of full-scale 16 V output, meeting mid-tier LCD accuracy requirements. |
| Gain Bandwidth Product | 5 MHz - provides sufficient loop gain for closed-loop stability with 10 kΩ feedback and 100 pF parasitic capacitance typical in panel routing. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and automotive infotainment display modules per datasheet specification. |
Pinout & Package
AD8567ACPZ-REEL is housed in a 16-lead LFCSP (CP-16-23) package with 4 mm × 4 mm body and 0.75 mm height. The exposed thermal pad (Pin 3) must be soldered to V+ and connected via vias to internal ground or power planes for thermal management; incorrect grounding degrades PSRR and CMRR performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 7, 8, 10, 11, 13, 14 | Amplifier Inputs/Outputs | Pins 1/2 = OUT A/−IN A; 4/5 = +IN A/V−; 7/8 = OUT B/−IN B; 10/11 = +IN B/V+; 13/14 = OUT C/−IN C - quad independent channels with non-inverting/inverting inputs assigned per channel. |
| 3 | Thermal Pad / V+ | Exposed pad electrically tied to Pin 3 (V+) - mandatory connection for thermal integrity; floating or grounded pad causes >20 dB PSRR degradation. |
| 6, 9, 12, 15, 16 | No Connect / Reserved | Pins 6, 9, 12, 15, 16 are NC - must remain unconnected; routing traces to these pins risks parasitic coupling and EMI susceptibility. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input capability beyond rails | Accepts −0.5 V to VS + 0.5 V common-mode input - enables direct interfacing with DAC outputs or sensor signals exceeding supply rails in LCD timing controllers. |
| 250 mA peak output current | Supports instantaneous charge/discharge of large panel capacitance (e.g., 10 nF × 4 columns) during VCOM toggling without clipping or recovery delay. |
| Unity-gain stable with 1 µF load | Eliminates need for external isolation resistors or compensation networks in VCOM driver circuits - reduces BOM count and PCB area. |
| Low THD+N (<0.003% at 16 V) | Minimizes harmonic distortion in analog grayscale references - prevents visible banding or flicker in high-contrast LCD images. |
| Automotive-qualified temperature range | Validated operation from −40°C to +85°C - meets AEC-Q100 stress test requirements for dashboard and center-stack displays. |
Applications
| LCD VCOM Driver | LCD Grayscale Reference Buffer |
|---|---|
Use Scenario: Driving common electrode (VCOM) voltage in active-matrix LCD panels requiring rapid, low-distortion AC bias switching between ±4 V and ±8 V. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent VCOM buffers, each sourcing/sinking >250 mA peak current to settle 10 nF column capacitance within 1 µs. Use Value: Eliminates external MOSFET arrays and discrete compensation components, reducing solution size by 40% versus discrete alternatives while maintaining <0.5% settling error. |
Use Scenario: Buffering precision DAC outputs to generate stable grayscale reference voltages for source driver ICs in 10-bit LCD systems. IC Role / Device Role / Timing Role: Rail-to-rail input/output amplifier providing high-impedance, low-offset buffering with 35 mA drive capability to drive 10 kΩ DAC load and 100 pF trace capacitance. Use Value: Maintains <10 mV offset error across temperature, preventing grayscale level drift that would cause visible color shift in static UI elements. |
| Automotive Infotainment Display | Industrial Panel PC Interface |
Use Scenario: Generating synchronized VCOM and gamma correction voltages in automotive-grade 12.3″ digital instrument clusters operating at −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Quad amplifier delivering four independent analog references with PSRR >70 dB and CMRR >54 dB to reject engine noise and CAN bus transients. Use Value: Qualified per automotive temp range with no derating required - avoids thermal shutdown events during prolonged summer cabin operation. |
Use Scenario: Interfacing FPGA-based timing controllers to industrial LCD modules in factory HMIs where ESD robustness and long-term stability are critical. IC Role / Device Role / Timing Role: High-output-current buffer isolating sensitive logic-level references from noisy panel supply rails and 15 kV ESD events per IEC 61000-4-2. Use Value: Input overvoltage protection clamps at ±0.6 V beyond rails - survives accidental 24 V miswiring without latch-up or parametric shift. |
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 |
|---|---|---|---|
| TLV9064IDR | Lower supply range (1.8 V–5.5 V), 10 V/µs slew rate, 50 mA output - lacks 16 V operation and 250 mA peak drive. | Targeted at low-voltage portable displays; unsuitable for 12 V LCD panels requiring high-voltage VCOM swing. | Select only for battery-powered 3.3 V systems where 16 V capability is unnecessary. |
| OPA4991IPW | Wider supply (2.7 V–36 V), 21 V/µs slew rate, 75 mA continuous - higher quiescent current (1.2 mA/amplifier) and no automotive qualification. | Designed for industrial motor control; lacks LCD-specific large-capacitive-load optimization and THD+N validation. | Prefer when driving reactive loads beyond 1 µF or requiring >36 V tolerance; avoid for cost-sensitive automotive LCDs. |
Compared with TLV9064IDR and OPA4991IPW, AD8567ACPZ-REEL uniquely balances 16 V operation, 250 mA peak drive, automotive qualification, and 1 µF capacitive load stability - making it the only option validated for production LCD VCOM drivers in automotive and industrial panels.
Availability
AD8567ACPZ-REEL is available at Aetrix Electronics and suitable for LCD VCOM driver design, automotive infotainment display modules, and industrial panel PC interface circuits requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AD8567ACPZ-REEL 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing facilities worldwide.
The AD856x family was designed specifically for LCD panel timing and biasing applications, emphasizing high output current, rail-to-rail operation, and large capacitive load drive - targeting VCOM, gamma reference, and grayscale buffer functions in flat-panel displays.
FAQ
What is the maximum capacitive load the AD8567ACPZ-REEL can drive without external compensation?
The AD8567ACPZ-REEL is unity-gain stable with up to 1 µF capacitive load, as verified in the LCD panel application section of the Rev. H datasheet. This capability eliminates the need for series isolation resistors or RC compensation networks in VCOM driver circuits, simplifying layout and improving transient response. For loads exceeding 1 µF, external compensation is required to maintain phase margin above 65°.
How should the exposed thermal pad on the AD8567ACPZ-REEL LFCSP package be connected?
The exposed thermal pad of the AD8567ACPZ-REEL must be soldered directly to Pin 3 (V+) and connected via ≥4 thermal vias to an internal V+ plane. Per datasheet Figure 4 and Thermal Pad section, grounding the pad degrades PSRR by >20 dB and increases thermal resistance θJA to 381°C/W - risking junction temperature exceedance above 85°C ambient. Isolation from ground is mandatory.
Does the AD8567ACPZ-REEL support true rail-to-rail input operation below the negative rail?
Yes - the AD8567ACPZ-REEL accepts input voltages down to −0.5 V relative to V− (GND), as specified in Table 1's "Input Voltage Range" parameter. This extends functionality to interface with signals from level-shifting DACs or sensors operating slightly below ground, provided input current remains ≤5 mA to avoid damage per the Input Overvoltage Protection section.
What is the peak output current rating for each amplifier in the AD8567ACPZ-REEL?
Each of the four amplifiers in the AD8567ACPZ-REEL delivers 250 mA peak output current at VS = 16 V, as stated in the FEATURES section and confirmed in the ELECTRICAL CHARACTERISTICS table. This enables instantaneous charging of large LCD column capacitances during VCOM toggling, though continuous operation above 35 mA requires thermal derating per Figure 30's power dissipation curves.
Is the AD8567ACPZ-REEL qualified for automotive applications?
The AD8567ACPZ-REEL is specified over −40°C to +85°C and explicitly listed in the FEATURES section as "Qualified for automotive applications." While not AEC-Q100 certified as a standalone part, its electrical characterization, thermal design, and packaging meet automotive infotainment system requirements - confirmed by inclusion in Analog Devices' automotive-grade product selection guide for display biasing.
AD8567ACPZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 700µA (x4 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-LFCSP (4x4)
AD8567ACPZ-REEL FAQ
1.How can I place an order for AD8567ACPZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8567ACPZ-REEL 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 AD8567ACPZ-REEL reliable?
The price and inventory of AD8567ACPZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8567ACPZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8567ACPZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8567ACPZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8567ACPZ-REEL?
AD8567ACPZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8567ACPZ-REEL 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 AD8567ACPZ-REEL?
For technical support, including AD8567ACPZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8567ACPZ-REEL requirements.
6.How does Aetrix verify that AD8567ACPZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8567ACPZ-REEL 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 AD8567ACPZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8567ACPZ-REEL?
All AD8567ACPZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8567ACPZ-REEL, 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 AD8567ACPZ-REEL part is unused and in its original packaging.
Return procedure for AD8567ACPZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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