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Analog Devices Inc./Maxim Integrated MAX4800ACQI+
- Part No.:
- MAX4800ACQI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
MAX4800ACQI+.pdf
- Description:
- IC SWITCH SPST-NOX8 38OHM 28PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,774
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Product details
Overview
The MAX4800ACQI+ from Maxim Integrated is an 8-channel, high-voltage SPST analog switch IC designed for ultrasound imaging and printer systems. It features low-charge-injection (≤600pC), 22Ω typical on-resistance at +100V/–100V supplies, –77dB off-isolation at 5MHz, and a 20MHz SPI-compatible serial interface. It operates with VPP/VNN up to +100V/–100V and supports digital control from +2.7V to +6V VDD.
For engineers reviewing the MAX4800ACQI+ datasheet, MAX4800ACQI+ pinout, MAX4800ACQI+ application, or MAX4800ACQI+ equivalent, this device serves as a pin-compatible drop-in replacement for Supertex HV2203 in PLCC-28 packaging-critical for legacy ultrasound transducer driver upgrades requiring minimal layout change and guaranteed open-on-power-up behavior.
Technical Context
The MAX4800ACQI+ integrates eight independent BCDMOS-based SPST switches controlled via an 8-bit shift register and transparent latch, enabling precise channel-by-channel switching under serial command. Its power-on reset ensures all switches default to OFF, eliminating unintended conduction during system startup.
Digital inputs (DIN, CLK, LE, CLR) are +6V tolerant regardless of VDD level, supporting interoperability with higher-voltage microcontrollers. The device accepts asymmetric high-voltage supplies (e.g., +40V/–160V, +100V/–100V, +185V/–15V), with VPP – VNN ≤ 200V enforced to maintain safe operation across all configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Count & Type | 8 independent SPST analog switches, each with COM/NO terminals for bidirectional signal routing |
| Max Analog Signal Range | VNN + 10V to VPP – 10V - enables full utilization of ±100V rails while maintaining safe headroom |
| On-Resistance (TYP) | 22Ω at +100V/–100V, 25°C - ensures minimal insertion loss in high-fidelity ultrasound transmit paths |
| Off-Isolation @ 5MHz | –77dB into 50Ω - suppresses crosstalk between adjacent channels in multi-element transducer arrays |
| Serial Interface Speed | 20MHz clock rate - supports rapid reconfiguration of all 8 switches within 400ns (8-bit load) |
| Charge Injection | 600pC at +100V/–100V - minimizes voltage glitch on capacitive loads like piezoelectric elements |
| Supply Flexibility | VPP/VNN combinations: +100V/–100V, +40V/–160V, +185V/–15V - accommodates diverse transducer biasing schemes |
Pinout & Package
MAX4800ACQI+ is packaged in a 28-pin PLCC (Plastic Leaded Chip Carrier) with gull-wing leads, RoHS-compliant, outline number 21-0049, land pattern 90-0235. Thermal resistance θJA = 44°C/W on a four-layer board.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–2, 4, 6–7, 9, 11, 13, 15, 17, 19, 21, 23, 26–27 | N.C. | No internal connection - unused pins; must remain unconnected or grounded per layout guidelines |
| 3, 5, 8, 10, 12, 14, 16, 18, 20, 22, 24, 25, 28–29, 33–37, 39, 41, 43, 45, 47 | COM0–COM7 / NO0–NO7 / VPP / VNN / GND / VDD / DIN / CLK / LE / CLR / DOUT | Functional pins mapped per datasheet Table: COMx/NOx support high-voltage analog routing; VPP/VNN supply ±100V rails; serial interface enables daisy-chaining |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in HV2203 replacement | Pin- and function-compatible with Supertex HV2203PJ-G in identical PLCC-28 package - no PCB redesign required |
| Power-on reset | Guarantees all 8 switches start OPEN at power-up - prevents inadvertent transducer excitation or printer head activation |
| +6V-tolerant logic inputs | DIN/CLK/LE/CLR accept up to +6V regardless of VDD (2.7–6V) - simplifies interfacing with 3.3V or 5V controllers |
| Low quiescent current | 10µA VPP/VNN supply current when static - reduces standby power in battery-backed or portable ultrasound systems |
| DC to 50MHz bandwidth | Supports wideband analog signals including pulsed ultrasound bursts and high-speed printer waveform generation |
Applications
| Ultrasound Transducer Driver | Industrial Printer Head Control |
|---|---|
Use Scenario: Routing high-voltage excitation pulses to individual piezoelectric elements in phased-array ultrasound probes. IC Role / Device Role / Timing Role: High-voltage SPST switch enabling selective element activation with <5µs turn-on/off time and <150mV output spike. Use Value: Low charge injection (600pC) prevents baseline shift in echo-receiving circuits; –77dB isolation maintains channel independence during beamforming. |
Use Scenario: Switching high-voltage bias to thermal or piezoelectric print heads in industrial label printers. IC Role / Device Role / Timing Role: Serial-controlled analog switch delivering precise timing-aligned voltage pulses to drive print elements at up to 50kHz. Use Value: 22Ω on-resistance minimizes power loss and heating; 20MHz interface allows real-time head selection during high-speed printing. |
| Medical Imaging System Upgrade | Legacy Equipment Retrofit |
Use Scenario: Replacing aging HV2203-based switch matrices in FDA-cleared ultrasound platforms without hardware revision. IC Role / Device Role / Timing Role: Pin-compatible functional replacement preserving existing firmware, timing, and layout integrity. Use Value: Identical PLCC-28 footprint and logic-level compatibility eliminate requalification risk; power-on reset ensures safe boot sequence. |
Use Scenario: Modernizing discontinued printer controller boards using obsolete Supertex parts. IC Role / Device Role / Timing Role: Direct drop-in substitute for HV2203PJ-G, retaining same serial protocol, latch behavior, and supply requirements. Use Value: Eliminates obsolescence risk while maintaining full backward compatibility - no firmware or schematic changes needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HV2203PJ-G | Original Supertex part; lacks integrated power-on reset and +6V-tolerant inputs; higher on-resistance (typ. 35Ω) | Same PLCC-28 footprint and basic SPI interface, but requires external POR circuitry and level-shifting for >3.3V logic | Select only if legacy stock remains and design cannot accommodate MAX4800ACQI+'s enhanced robustness |
| MAX4800ACCM+ | Same functionality in 48-pin LQFP package; lower θJA (44°C/W vs. 44°C/W), different pinout and land pattern | Requires PCB redesign; suited for new designs needing higher thermal margin or daisy-chain scalability | Choose for new layouts where space permits LQFP and thermal performance is critical; not a drop-in option |
Compared with HV2203PJ-G, MAX4800ACQI+ adds power-on reset and +6V-tolerant logic, reducing system-level protection components; compared with MAX4800ACCM+, it offers identical electrical specs in a legacy-compatible PLCC package-ideal for cost-sensitive, space-constrained retrofits.
Availability
MAX4800ACQI+ is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial printer head drivers, and medical equipment upgrades requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MAX4800ACQI+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and high-voltage ICs for demanding industrial, medical, and communications applications.
The MAX4800A/MAX4802A product line targets high-voltage analog switching in ultrasound and printing systems, emphasizing low charge injection, rail-to-rail signal handling, and robust serial control for mission-critical transducer and actuator interfaces.
FAQ
What is the maximum allowable VPP–VNN voltage difference for the MAX4800ACQI+?
The MAX4800ACQI+ specifies a maximum VPP–VNN difference of 200V. This limit applies across all supported supply configurations-including +100V/–100V, +40V/–160V, and +185V/–15V-and is enforced to ensure safe operation of the internal BCDMOS switches and prevent dielectric breakdown. Exceeding 200V voids absolute maximum ratings compliance.
Does the MAX4800ACQI+ include integrated bleed resistors like the MAX4802A?
No, the MAX4800ACQI+ does not include integrated bleed resistors. That feature is exclusive to the MAX4802A variant (e.g., MAX4802ACQI+), which provides 35kΩ resistors from each COM/NO terminal to RGND. The MAX4800ACQI+ requires external discharge paths for capacitive loads such as piezoelectric transducers.
Can the MAX4800ACQI+ be daisy-chained with other MAX4800A or MAX4802A devices?
Yes, the MAX4800ACQI+ supports daisy-chaining via its DOUT pin, which outputs shifted data delayed by eight clocks. Connect DOUT to the DIN of the next device, while sharing CLK, LE, and CLR lines across the chain. This enables synchronized configuration of multiple switches using a single serial stream-essential for scalable transducer arrays.
What is the purpose of the RGND pin on the MAX4800ACQI+?
The MAX4800ACQI+ does not have an RGND pin. RGND is present only on the MAX4802A variant (e.g., MAX4802ACQI+) to serve as the return node for its integrated 35kΩ bleed resistors. The MAX4800ACQI+ pinout omits RGND; its PLCC-28 package uses pin 11 for N.C., confirming absence of bleed resistor functionality.
Is the MAX4800ACQI+ pin-compatible with the Supertex HV2203PJ-G?
Yes, the MAX4800ACQI+ is explicitly specified as a pin-compatible, drop-in replacement for the Supertex HV2203PJ-G in the 28-pin PLCC package. Pin functions, spacing, thermal pad absence, and mechanical outline match exactly-enabling direct substitution without PCB modification or layout rework.
MAX4800ACQI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 8
- On-State Resistance (Max):
- 38Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.9Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 5µs, 5µs
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 18pF
- Current - Leakage (IS(off)) (Max):
- 2µA
- Crosstalk:
- -80dB @ 5MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-PLCC (11.51x11.51)
MAX4800ACQI+ FAQ
1.How can I place an order for MAX4800ACQI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4800ACQI+ 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 MAX4800ACQI+ reliable?
The price and inventory of MAX4800ACQI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4800ACQI+ is usually 5 days.
3.What payment methods are accepted for MAX4800ACQI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4800ACQI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4800ACQI+?
MAX4800ACQI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4800ACQI+ 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 MAX4800ACQI+?
For technical support, including MAX4800ACQI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4800ACQI+ requirements.
6.How does Aetrix verify that MAX4800ACQI+ is sourced from the original manufacturer or authorized distributors?
All MAX4800ACQI+ 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 MAX4800ACQI+ meets industry standards.
7.What is the process for return or replacement of MAX4800ACQI+?
All MAX4800ACQI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4800ACQI+, 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 MAX4800ACQI+ part is unused and in its original packaging.
Return procedure for MAX4800ACQI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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