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Analog Devices Inc./Maxim Integrated MAX4800CXZ
- Part No.:
- MAX4800CXZ
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 26-LFBGA, CSBGA
- Datasheet:
-
MAX4800CXZ.pdf
- Description:
- IC SW SPST-NOX8 38OHM 72CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
The MAX4800CXZ from Maxim Integrated is an 8-channel, high-voltage SPST analog switch IC designed for ultrasonic imaging transducer multiplexing and industrial printer head control. It features low-charge-injection (350pC), 22Ω typical on-resistance, DC–10MHz signal bandwidth, and operates with VPP/VNN supplies up to +40V/–160V (200V total). Its BCDMOS process enables robust high-voltage switching in medical ultrasound beamforming circuits.
For engineers reviewing the MAX4800CXZ datasheet, MAX4800CXZ pinout, MAX4800CXZ application, or MAX4800CXZ equivalent, this device delivers verified 8-channel high-voltage switching with programmable latch control, power-on reset, and +13.2V-tolerant digital inputs-critical for reliable transducer driver interface design in compact ultrasound systems.
Technical Context
The MAX4800CXZ implements an 8-bit serial shift register with transparent latch, controlled via DIN, CLK, LE (active-low), and CLR inputs. All eight switches are SPST, normally open, and each supports analog signals from VNN +10V to VPP –10V with ≤77dB off-isolation at 5MHz.
It uses independent supply domains: VDD (+2.7V to +13.2V) powers logic, while VPP/VNN (up to 200V differential) powers analog paths. Digital inputs tolerate +13.2V regardless of VDD level, enabling direct interfacing with higher-voltage microcontrollers without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPP/VNN Supply Range | +40V/–160V to +185V/–15V (200V max differential); enables flexible HV biasing for piezoelectric transducers. |
| On-Resistance (RONS) | 22Ω typical (VPP=+100V, VNN=–100V, ICOM=5mA); ensures minimal signal attenuation in analog front-end paths. |
| Charge Injection | 350pC typical; reduces voltage glitches during switching-critical for precision ultrasound echo signal integrity. |
| Off-Isolation | –77dB at 5MHz (RL=50Ω); suppresses crosstalk between adjacent transducer channels in dense arrays. |
| Switch Bandwidth | DC to 10MHz; supports wideband pulse-echo imaging and high-speed printer actuation waveforms. |
| Digital Input Tolerance | +13.2V tolerant (DIN, CLK, LE, CLR), independent of VDD; eliminates external level shifters in mixed-supply systems. |
| Quiescent Current (VDD) | 10µA typical; minimizes standby power in battery-backed or thermally constrained medical modules. |
Pinout & Package
The MAX4800CXZ is housed in a 26-bump Chip-Scale Ball Grid Array (CSBGA) package, measuring 4.0mm × 4.0mm, with 0.5mm pitch and RoHS-compliant lead-free finish. This ultra-compact footprint supports high-density PCB layouts in portable ultrasound probes and space-constrained printer ASIC modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM7 | Analog common terminals (8 channels) | Each connects to one side of a piezoelectric transducer or print head element; must remain within VNN to VPP during power transitions. |
| NO0–NO7 | Analog normally-open terminals (8 channels) | Switched connection points; routed to HV bias rails or receive amplifiers-enables time-multiplexed transducer access. |
| VPP / VNN | High-voltage positive/negative supplies | Power analog switch channels; require local 0.1µF ceramic bypassing to GND for stable HV operation. |
| VDD / GND | Digital supply and ground | Isolate logic domain from HV noise; VDD range (+2.7V to +13.2V) supports 3.3V or 5V microcontroller interfaces. |
| DIN / CLK / LE / CLR | Serial control interface | Enable daisy-chained configuration of multiple devices; LE active-low latches data to update all 8 switches simultaneously. |
| DOUT | Serial data output | Supports cascading up to N devices using single MCU SPI port-reduces GPIO count in multi-probe systems. |
Key Features
| Feature | Design Value |
|---|---|
| Low-charge-injection switching | 350pC typical-minimizes transient voltage spikes on sensitive transducer nodes, preserving echo signal fidelity. |
| Programmable 8-bit latch with enable/clear | LE (active-low) freezes switch states during data loading; CLR (active-high) forces all switches open-ensures safe startup and fault recovery. |
| Power-on reset circuitry | Guarantees all 8 switches start open at power-up-prevents unintended transducer excitation or print head activation. |
| +13.2V-tolerant digital inputs | Eliminates need for external level translators when interfacing with 5V or 12V controllers-reduces BOM count and layout complexity. |
| Flexible HV supply compatibility | Supports asymmetric rails (e.g., +40V/–160V) and up to 200V differential-matches diverse transducer bias requirements across ultrasound platforms. |
Applications
| Ultrasound Transducer Multiplexing | Industrial Printer Head Control |
|---|---|
|
Use Scenario: Time-division multiplexing of 64+ piezoelectric elements in handheld ultrasound probes. IC Role / Device Role / Timing Role: High-voltage SPST switch routing echo signals from individual transducers to shared receive amplifiers and ADCs. Use Value: Enables compact probe design with 8:1 channel reduction per MAX4800CXZ, maintaining <350pC charge injection to preserve weak echo SNR. |
Use Scenario: Driving high-voltage pulses to thermal or piezoelectric print head elements in label printers. IC Role / Device Role / Timing Role: Precision-controlled high-voltage switch activating individual print nozzles under microcontroller serial command. Use Value: Delivers 22Ω RONS and 5µs turn-on/off timing-ensuring sharp pulse edges for consistent dot formation and print resolution. |
| Medical Beamforming Modules | Automated Test Equipment (ATE) |
|
Use Scenario: Configurable analog path selection in portable ultrasound beamformers with dynamic focus adjustment. IC Role / Device Role / Timing Role: Analog switch matrix enabling real-time reconfiguration of delay line inputs across transducer sub-arrays. Use Value: Supports DC–10MHz bandwidth and –77dB off-isolation-preserving phase coherence and minimizing inter-channel crosstalk during beam steering. |
Use Scenario: High-voltage signal routing in automated test systems for piezoelectric sensor calibration. IC Role / Device Role / Timing Role: Programmable HV switch selecting between DUTs and reference loads during parametric testing sequences. Use Value: Leverages 200V VPP–VNN capability and 10µA quiescent current-enabling wide dynamic range testing with low system power overhead. |
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 |
|---|---|---|---|
| HV20220FG | Pin-compatible Supertex predecessor; identical 48-TQFP pinout but not available in CSBGA; lacks +13.2V input tolerance. | Legacy replacement only; requires level-shifting for >5V logic interfaces and cannot match MAX4800CXZ's compact 26-CSBGA footprint. | Select MAX4800CXZ for new designs requiring miniaturization, wider logic voltage tolerance, and guaranteed production availability. |
| MAX4800CCM | Same die, different package: 48-pin TQFP (7mm × 7mm) vs. 26-CSBGA (4mm × 4mm); identical electrical specs and timing. | TQFP suits prototyping and lower-density boards; CSBGA targets high-channel-count portable systems where board area is critical. | Choose MAX4800CXZ when PCB real estate is constrained-e.g., handheld ultrasound probes-where 45% smaller footprint directly enables thinner form factors. |
Compared with HV20220FG and MAX4800CCM, the MAX4800CXZ uniquely combines CSBGA miniaturization, +13.2V-tolerant inputs, and full production support-making it the optimal choice for next-generation portable medical and industrial HV switching applications.
Availability
MAX4800CXZ is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial printer head drivers, and medical beamforming modules requiring stable component supply across long product lifecycles.
Supply support for MAX4800CXZ 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) is a leader in high-performance analog, mixed-signal, and power management ICs, serving medical, industrial, and communications markets since 1983.
The MAX4800 family was engineered specifically for high-voltage, low-distortion analog switching in ultrasound and precision printing-emphasizing charge injection control, HV supply flexibility, and robust serial interface reliability.
FAQ
What is the maximum allowable VPP–VNN differential voltage for the MAX4800CXZ?
The MAX4800CXZ supports a maximum VPP–VNN differential voltage of 200V, as specified in Absolute Maximum Ratings. Valid combinations include +100V/–100V, +185V/–15V, and +40V/–160V. Exceeding 200V risks permanent damage. The MAX4800CXZ must be operated within these limits to ensure reliable switching and avoid breakdown in its BCDMOS output stage.
Does the MAX4800CXZ include integrated bleed resistors like the MAX4802?
No, the MAX4800CXZ does not include integrated bleed resistors. That feature is exclusive to the MAX4802 variant, which adds 35kΩ resistors from each COM/NO terminal to RGND. The MAX4800CXZ requires external discharge paths for capacitive loads-such as piezoelectric transducers-to prevent residual voltage buildup after switching.
Can the MAX4800CXZ be daisy-chained with other MAX4800-series devices?
Yes, the MAX4800CXZ supports daisy-chaining via its DOUT pin, which outputs shifted data delayed by eight clocks. Connect DOUT of one MAX4800CXZ to DIN of the next, while sharing CLK, LE, and CLR lines. This allows single-SPI-port control of multiple MAX4800CXZ devices-ideal for scaling channel count in ultrasound probe arrays without adding MCU GPIOs.
What is the purpose of the RGND pin, and is it present on the MAX4800CXZ?
The RGND pin is used exclusively by the MAX4802 to reference its internal 35kΩ bleed resistors. It is not present on the MAX4800CXZ. The MAX4800CXZ has no bleed resistors and therefore omits RGND-its pin 11 (CSBGA) is a no-connect (N.C.), as confirmed in the Pin Descriptions table for MAX4800 CSBGA.
How does the power-on reset function behave in the MAX4800CXZ?
The MAX4800CXZ incorporates an internal power-on reset circuit that forces all eight switches to the open (OFF) state at power-up, regardless of input conditions. This ensures transducers or print elements remain safely de-energized during system initialization-a critical safety feature explicitly guaranteed in the datasheet and implemented in the MAX4800CXZ's latch architecture.
MAX4800CXZ 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 ~ 13.2V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 5µs, 5µs
- -3db Bandwidth:
- -
- Charge Injection:
- 820pC
- Channel Capacitance (CS(off), CD(off)):
- 18pF
- Current - Leakage (IS(off)) (Max):
- 4µA
- Crosstalk:
- -80dB @ 5MHz
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 72-CSBGA (6x5.35)
MAX4800CXZ FAQ
1.How can I place an order for MAX4800CXZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4800CXZ 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 MAX4800CXZ reliable?
The price and inventory of MAX4800CXZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4800CXZ is usually 5 days.
3.What payment methods are accepted for MAX4800CXZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4800CXZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4800CXZ?
MAX4800CXZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4800CXZ 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 MAX4800CXZ?
For technical support, including MAX4800CXZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4800CXZ requirements.
6.How does Aetrix verify that MAX4800CXZ is sourced from the original manufacturer or authorized distributors?
All MAX4800CXZ 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 MAX4800CXZ meets industry standards.
7.What is the process for return or replacement of MAX4800CXZ?
All MAX4800CXZ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4800CXZ, 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 MAX4800CXZ part is unused and in its original packaging.
Return procedure for MAX4800CXZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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