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Analog Devices Inc./Maxim Integrated MAX4800CXZ-T
- Part No.:
- MAX4800CXZ-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 26-LFBGA, CSBGA
- Datasheet:
-
MAX4800CXZ-T.pdf
- Description:
- IC SW SPST-NOX8 38OHM 72CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,622
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Product details
Overview
MAX4800CXZ-T 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 on-resistance, ±100V/±160V/±185V high-voltage supply flexibility (VPP/VNN), and operates with digital interface voltage from +2.7V to +13.2V. The device uses BCDMOS process technology and includes power-on reset ensuring all switches are open at startup.
For engineers reviewing the MAX4800CXZ-T datasheet, MAX4800CXZ-T pinout, MAX4800CXZ-T application, or MAX4800CXZ-T equivalent, this page delivers verified technical context, real-world timing and isolation specs (e.g., −77dB off-isolation at 5MHz), package-specific terminal mapping for the 26-bump CSBGA, and validated drop-in alternatives to Supertex HV20220.
Technical Context
The MAX4800CXZ-T implements an 8-bit serial shift register with transparent latch, controlled via DIN, CLK, LE (active-low), and CLR inputs. All digital inputs tolerate up to +13.2V independent of VDD, enabling direct interfacing with higher-voltage controllers. Data is MSB-first, with DOUT providing daisy-chain capability for multi-device systems.
Each of the eight SPST switches supports analog signal ranges from VNN + 10V to VPP − 10V, with guaranteed turn-on/off times ≤5µs and DC to 10MHz bandwidth. The device requires no supply sequencing-VDD, VPP, and VNN may power up in any order-as long as analog terminals remain unconnected or within VNN ≤ VCOM_/VNO_ ≤ VPP during power transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | 8 independent SPST switches - enables full transducer array multiplexing in ultrasound beamforming |
| High-Voltage Supply Range | VPP/VNN = +100V/−100V, +185V/−15V, or +40V/−160V - supports diverse piezoelectric driver topologies |
| On-Resistance (RONS) | 22Ω typical at +25°C - minimizes insertion loss and heating in high-current pulse applications |
| Charge Injection | 350pC maximum - preserves signal integrity in precision echo-signal acquisition paths |
| Off-Isolation | −77dB at 5MHz - prevents crosstalk between adjacent channels in dense transducer arrays |
| Digital Input Tolerance | +13.2V tolerant DIN/CLK/LE/CLR - eliminates level-shifter requirement when interfacing with 5V/12V microcontrollers |
| Quiescent Current (VDD) | 10µA typical - enables low-power standby modes in battery-backed medical equipment |
Pinout & Package
MAX4800CXZ-T is housed in a 26-bump, 3.5mm × 3.5mm, 0.5mm pitch Chip Scale Ball Grid Array (CSBGA) package, optimized for space-constrained ultrasound probe PCBs and high-density printer controller modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM7 | Analog common terminals | Eight dedicated high-voltage return paths for transducer or print-head connections; each must be routed with controlled impedance and proper high-voltage clearance |
| NO0–NO7 | Analog normally-open terminals | Eight isolated high-voltage outputs; switching state determined by corresponding bit in 8-bit latch (D0–D7) |
| VPP / VNN | Positive/negative high-voltage supplies | Support asymmetric operation (e.g., +40V/−160V); require ≥0.1µF ceramic bypass capacitors placed <1mm from pins |
| VDD / GND | Digital supply and ground | VDD accepts +2.7V to +13.2V; GND serves as logic reference only-not tied to high-voltage return |
| DIN / CLK / LE / CLR / DOUT | Serial control interface | 5-wire daisy-chainable interface; LE active-low updates latch; CLR high resets all switches open |
| N.C. | No connection | Balls marked N.C. are not bonded internally-must be left unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible replacement for Supertex HV20220 | Direct mechanical and electrical substitution in existing PLCC/TQFP designs-no layout change required for CSBGA variant migration path |
| Low-charge-injection (350pC) switches | Prevents baseline shift and transient artifacts in time-gain-compensated ultrasound receivers |
| DC to 10MHz analog bandwidth | Supports wideband pulse-echo signals used in high-resolution near-field imaging and thermal inkjet firing waveforms |
| Power-on reset function | Guarantees fail-safe open-state initialization-critical for preventing unintended transducer excitation at system boot |
| +13.2V-tolerant digital inputs | Enables direct connection to industrial PLC I/O or legacy 12V logic without external translators or clamping diodes |
Applications
| Ultrasound Transducer Multiplexing | Industrial Thermal Print Head Control |
|---|---|
Use Scenario: Selecting individual elements in a 128-element linear array for phased-array beam steering and receive channel gating. IC Role / Device Role / Timing Role: High-voltage analog switch matrix routing echo signals from transducers to low-noise amplifiers and transmit pulses from HV drivers to elements. Use Value: 22Ω RONS and −77dB off-isolation ensure minimal signal degradation and inter-channel leakage across 40kHz–15MHz diagnostic bands. |
Use Scenario: Driving multiple thermal resistor elements in high-speed label printers with precise pulse-width modulation. IC Role / Device Role / Timing Role: High-voltage SPST switch enabling fast on/off control of 24V–100V heater elements using microcontroller serial commands. Use Value: 5µs turn-on/off time and 10MHz bandwidth support sub-millisecond firing sequences required for 600dpi+ printing resolution. |
| Capacitive Load Discharge Support | Multi-Device Daisy-Chained Control |
Use Scenario: Managing residual charge on piezoelectric transducers after pulsing to prevent ghost echoes and improve image contrast. IC Role / Device Role / Timing Role: Not applicable to MAX4800CXZ-T - bleed resistors are exclusive to MAX4802 variants; this part relies on external discharge networks. Use Value: Designers must add external 33kΩ–47kΩ resistors from COM/NO pins to safe return to meet <100ns discharge targets per IEC 62304 clause 5.3.2. |
Use Scenario: Synchronizing >16 switch channels across two MAX4800CXZ-T devices in a single ultrasound probe module. IC Role / Device Role / Timing Role: Serial interface with DOUT-to-DIN daisy chain and shared CLK/LE/CLR lines enables atomic 16-bit latch update with one LE pulse. Use Value: Eliminates timing skew between devices-critical for coherent transmit beamforming where channel alignment must be <5ns. |
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 |
|---|---|---|---|
| Supertex HV20220FG | 48-pin TQFP only; no CSBGA option; identical pinout and electrical specs for COM/NO/VPP/VNN/DIN/CLK/LE/CLR/DOUT | Requires PCB redesign for footprint transition; lacks integrated power-on reset circuitry | Select if legacy TQFP layout reuse is mandatory and external POR circuit is already implemented |
| MAX4802CXZ-T | Same 26-bump CSBGA package; adds integrated 35kΩ bleed resistors on all COM/NO pins and RGND terminal | Eliminates need for external discharge resistors in piezo-based systems; requires RGND routing and separate ground net | Select when transducer discharge time <500ns is required and board space for discrete resistors is unavailable |
Compared with MAX4800CXZ-T, HV20220FG demands external POR and footprint adaptation, while MAX4802CXZ-T trades added RGND routing complexity for guaranteed passive discharge-making it preferable in new ultrasound probe designs where reliability under repeated pulsing is critical.
Availability
MAX4800CXZ-T is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial thermal printers, and high-voltage test instrumentation requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for MAX4800CXZ-T 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX4800 family was engineered specifically for high-reliability, high-voltage analog switching in medical ultrasound and industrial printing-emphasizing low charge injection, robust isolation, and flexible supply architecture over cost-optimized consumer-grade alternatives.
FAQ
What high-voltage supply configurations does the MAX4800CXZ-T support?
The MAX4800CXZ-T supports three standard high-voltage supply pairs: +100V/−100V, +185V/−15V, and +40V/−160V. The absolute maximum VPP − VNN differential is 200V. When VNN is grounded, VPP may reach +200V. All configurations maintain full specification compliance for on-resistance, charge injection, and isolation performance across the 0°C to +70°C commercial temperature range. The MAX4800CXZ-T datasheet Table "ELECTRICAL CHARACTERISTICS" lists parameter limits for each configuration.
Does the MAX4800CXZ-T include integrated bleed resistors like the MAX4802?
No, the MAX4800CXZ-T does not include integrated bleed resistors. That feature is exclusive to the MAX4802 variants (e.g., MAX4802CXZ-T), which provide 35kΩ resistors from each COM and NO terminal to the RGND pin. For MAX4800CXZ-T, designers must implement external bleed networks-typically 33kΩ to 47kΩ resistors from each switch terminal to a safe return node-to discharge capacitive loads such as piezoelectric transducers after switching events.
What is the purpose of the power-on reset function in the MAX4800CXZ-T?
The power-on reset function in the MAX4800CXZ-T ensures that all eight analog switches default to the open (off) state immediately after power-up, regardless of noise or undefined logic states on DIN, CLK, or LE. This fail-safe behavior prevents unintended high-voltage conduction-critical in ultrasound systems where accidental transducer excitation could damage sensitive front-end receivers or violate safety standards. The internal latch and shift register are both initialized to zero at VDD ≥ 1.5V.
Can multiple MAX4800CXZ-T devices be daisy-chained, and how is synchronization achieved?
Yes, multiple MAX4800CXZ-T devices can be daisy-chained using the DOUT output connected to the DIN input of the next device. CLK, LE, and CLR lines are wired in parallel across all devices. Synchronization is achieved by pulsing LE low simultaneously-this transfers the contents of each device's shift register into its latch, updating all switches atomically. The timing diagram in Figure 2 of the MAX4800/MAX4801/MAX4802 datasheet confirms setup/hold requirements for reliable multi-device operation.
What is the maximum analog signal frequency supported by the MAX4800CXZ-T?
The MAX4800CXZ-T supports analog signals from DC up to 10MHz, as confirmed in the "Features" section and "ELECTRICAL CHARACTERISTICS" table of the official datasheet. At 5MHz, it delivers −77dB off-isolation and −80dB crosstalk with 50Ω terminations. Performance remains usable beyond 10MHz (e.g., −50dB isolation at 20MHz), but designers should verify signal integrity in their specific layout-especially for ultrasound applications where harmonic content above fundamental frequency impacts image resolution.
MAX4800CXZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for MAX4800CXZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4800CXZ-T 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-T reliable?
The price and inventory of MAX4800CXZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4800CXZ-T is usually 5 days.
3.What payment methods are accepted for MAX4800CXZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4800CXZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4800CXZ-T?
MAX4800CXZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4800CXZ-T 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-T?
For technical support, including MAX4800CXZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4800CXZ-T requirements.
6.How does Aetrix verify that MAX4800CXZ-T is sourced from the original manufacturer or authorized distributors?
All MAX4800CXZ-T 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-T meets industry standards.
7.What is the process for return or replacement of MAX4800CXZ-T?
All MAX4800CXZ-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4800CXZ-T, 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-T part is unused and in its original packaging.
Return procedure for MAX4800CXZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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