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Analog Devices Inc./Maxim Integrated MAX4800ACCM+T
- Part No.:
- MAX4800ACCM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 48-LQFP
- Datasheet:
-
MAX4800ACCM+T.pdf
- Description:
- IC SWITCH SPST-NOX8 38OHM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,185
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Product details
Overview
MAX4800ACCM+T from Maxim Integrated is an 8-channel, high-voltage SPST analog switch IC for ultrasound imaging and printer systems. It features low-charge-injection (≤600pC), 22Ω typical on-resistance at +100V/–100V supplies, 20MHz SPI™ serial interface, and operates across VPP/VNN = +40V/–160V to +160V/–40V. Its digital control runs from a separate +2.7V to +6V VDD supply.
For engineers reviewing the MAX4800ACCM+T datasheet, MAX4800ACCM+T pinout, MAX4800ACCM+T application, or MAX4800ACCM+T equivalent, this page delivers verified electrical specs, package mapping to 48-pin LQFP, confirmed pin functions, thermal resistance (θJA = 44°C/W), and two validated drop-in alternatives for high-voltage switching design review.
Technical Context
The MAX4800ACCM+T integrates eight independent BCDMOS SPST switches with a dedicated 8-bit shift register and transparent latch, enabling precise channel control via rising-edge clocked serial data. Its power-on reset ensures all switches default open, and LE/CLR inputs provide synchronous latch update and global switch-off capability without affecting shift register contents.
It supports asymmetric high-voltage rails up to VPP – VNN = 200V, with analog signal range limited to VNN +10V to VPP –10V. Digital inputs (DIN, CLK, LE, CLR) are +6V tolerant regardless of VDD level, enabling interoperability with higher-voltage controllers in mixed-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Count & Type | 8 independent SPST analog switches, low-charge-injection (≤600pC @ +100V/–100V) |
| On-Resistance (RONS) | 22Ω typical at +100V/–100V, 25°C, 5mA - enables low insertion loss in high-voltage signal paths |
| Serial Interface Speed | 20MHz SPI™ clock rate - supports fast channel reconfiguration for real-time ultrasound beamforming |
| Analog Signal Range | VNN +10V to VPP –10V - defines safe linear operating window for piezoelectric transducer drive |
| Off-Isolation | –77dB at 5MHz, 50Ω load - critical for crosstalk suppression between adjacent ultrasound channels |
| Supply Flexibility | VPP/VNN combinations: +40V/–160V, +100V/–100V, +160V/–40V - accommodates diverse transducer biasing schemes |
| Digital Supply (VDD) | +2.7V to +6V - decoupled logic domain allows direct interfacing with 3.3V or 5V microcontrollers |
Pinout & Package
MAX4800ACCM+T is packaged in a 48-pin LQFP (7mm × 7mm), RoHS-compliant, with θJA = 44°C/W and θJC = 10°C/W on a four-layer board. Thermal performance supports continuous operation at full high-voltage load within commercial temperature range (0°C to +70°C).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–48 (see pin map) | COM0–COM7, NO0–NO7, DIN, CLK, LE, CLR, DOUT, VDD, VPP, VNN, GND | Eight analog common/normally-open pairs plus 20MHz serial control interface and dual-domain supplies |
| COM0–COM7 | Analog Common Terminal | High-voltage return path for each switch; must remain within VNN to VPP during power transitions |
| NO0–NO7 | Analog Normally-Open Terminal | Switched high-voltage output; connects to COM when corresponding bit = 1 in shift register |
| DIN / CLK / LE / CLR / DOUT | Serial Control Interface | 20MHz SPI-compatible signals; LE active-low latches data; CLR high resets all switches open |
| VPP / VNN | High-Voltage Supplies | Independent positive/negative rails; VPP – VNN ≤ 200V; bypass with ≥0.1µF ceramic capacitors |
| VDD / GND | Digital Supply & Reference | +2.7V to +6V logic domain; inputs tolerate up to +6V regardless of VDD level |
Key Features
| Feature | Design Value |
|---|---|
| 20MHz Serial Interface | Enables sub-500ns per-bit update latency for time-critical ultrasound channel sequencing |
| Low-Charge-Injection (≤600pC) | Minimizes voltage glitch on piezoelectric transducers during switching, preserving acoustic pulse fidelity |
| Asymmetric HV Supply Support | Accepts +40V/–160V, +100V/–100V, or +160V/–40V - matches diverse transducer bias requirements |
| Power-On Reset | Guarantees all eight switches start open at power-up, preventing unintended high-voltage shorts |
| Pin-Compatible Replacement | Direct drop-in for Supertex HV2203 in 48-pin LQFP - no PCB layout change required |
Applications
| Ultrasound Imaging System | Industrial Printer Head Driver |
|---|---|
Use Scenario: Beamforming matrix in portable ultrasound probe with 128-channel transducer array. IC Role / Device Role / Timing Role: High-voltage analog switch controlling individual transducer element bias and echo receive path selection. Use Value: 22Ω RONS and –77dB off-isolation at 5MHz ensure minimal signal degradation and inter-channel crosstalk during multi-element firing sequences. |
Use Scenario: High-speed electrostatic print head activation in wide-format industrial inkjet printers. IC Role / Device Role / Timing Role: Precision timing-controlled switch delivering ±100V pulses to piezoelectric actuators. Use Value: 20MHz serial interface enables synchronized firing of 8 print nozzles per IC, supporting >10kHz line rates without timing skew. |
| Medical Diagnostic Equipment | Automated Test Equipment (ATE) |
Use Scenario: Signal routing in portable Doppler ultrasound units requiring low-power, high-reliability HV switching. IC Role / Device Role / Timing Role: Isolating transmit/receive paths and selecting gain stages under microcontroller command. Use Value: 10µA quiescent current and power-on reset reduce system-level fault risk and extend battery life in handheld devices. |
Use Scenario: High-voltage multiplexing in semiconductor wafer probers testing power devices at ±150V. IC Role / Device Role / Timing Role: Channel-select switch in precision HV stimulus/sense circuitry with daisy-chained configuration. Use Value: Daisy-chainable DOUT and +6V-tolerant logic inputs simplify integration into existing 5V ATE controller backplanes. |
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 |
|---|---|---|---|
| HV2203FG-G | Legacy Supertex part; same 48-pin LQFP footprint and pinout; lacks integrated bleed resistors and 20MHz clock support (max 10MHz) | No built-in charge injection mitigation; requires external discharge networks for capacitive loads | Select only if legacy compatibility is mandatory and system clock speed ≤10MHz |
| MAX4802ACCM+T | Same package and pinout; adds integrated 35kΩ bleed resistors on all COM/NO terminals; identical electrical specs otherwise | Eliminates need for external bleed resistors in piezoelectric transducer applications | Prefer for new designs with capacitive loads where automatic discharge is required |
Compared with HV2203FG-G, MAX4800ACCM+T offers higher serial speed and lower charge injection; compared with MAX4802ACCM+T, it omits bleed resistors-making it optimal for applications where external discharge control is preferred or already implemented.
Availability
MAX4800ACCM+T is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial printer head drivers, medical diagnostic equipment, and automated test equipment requiring stable component supply, long-term manufacturability, and guaranteed RoHS compliance.
Supply support for MAX4800ACCM+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) 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, flexible rail support, and robust serial control for real-time signal path management.
FAQ
What is the maximum allowable voltage difference between VPP and VNN for the MAX4800ACCM+T?
The MAX4800ACCM+T specifies VPP – VNN ≤ 200V absolute maximum. Valid combinations include +40V/–160V, +100V/–100V, and +160V/–40V. Exceeding 200V risks permanent damage. The analog signal range remains constrained to VNN +10V to VPP –10V regardless of rail selection. This limit ensures safe operation of the internal BCDMOS switches and prevents breakdown in the high-voltage domain.
Does the MAX4800ACCM+T include integrated bleed resistors like the MAX4802A variant?
No, the MAX4800ACCM+T does not include integrated bleed resistors. That feature is exclusive to the MAX4802A family (e.g., MAX4802ACCM+T), which adds 35kΩ resistors between each COM/NO terminal and RGND. The MAX4800ACCM+T requires external bleed networks when driving highly capacitive loads such as piezoelectric transducers to prevent voltage hang-up after switching.
What is the guaranteed minimum clock frequency for reliable serial communication with the MAX4800ACCM+T?
The MAX4800ACCM+T supports DC to 20MHz clock operation, with guaranteed timing at fCLK = 20MHz when VDD = +5V ±10%. At VDD = +3V ±10%, the maximum guaranteed clock rate drops to 10MHz. Setup/hold times (e.g., tDS = 16ns at 3V) and propagation delays (tDO = 12–80ns) are fully specified across the operating range, ensuring deterministic data capture and output alignment.
Can multiple MAX4800ACCM+T devices be daisy-chained, and how is synchronization achieved?
Yes, the MAX4800ACCM+T supports daisy-chaining via its DOUT pin, which outputs shifted-in data delayed by eight clocks. To synchronize multiple devices, connect CLK, LE, and CLR in parallel across all units, and cascade DIN→DOUT between adjacent ICs. A single LE low pulse updates all latches simultaneously, ensuring atomic state changes across the entire chain - essential for coherent multi-channel ultrasound firing.
What thermal derating applies to the MAX4800ACCM+T in its 48-pin LQFP package?
The MAX4800ACCM+T in 48-pin LQFP has θJA = 44°C/W and θJC = 10°C/W on a four-layer board. Continuous power dissipation is rated at 1818mW at +70°C ambient, with derating of 22.7mW/°C above that temperature. Junction temperature must not exceed +150°C. Proper PCB copper area and thermal vias beneath the exposed pad (if present) are recommended to maintain reliability under sustained high-voltage switching loads.
MAX4800ACCM+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 48-LQFP (7x7)
MAX4800ACCM+T FAQ
1.How can I place an order for MAX4800ACCM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4800ACCM+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 MAX4800ACCM+T reliable?
The price and inventory of MAX4800ACCM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4800ACCM+T is usually 5 days.
3.What payment methods are accepted for MAX4800ACCM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4800ACCM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4800ACCM+T?
MAX4800ACCM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4800ACCM+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 MAX4800ACCM+T?
For technical support, including MAX4800ACCM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4800ACCM+T requirements.
6.How does Aetrix verify that MAX4800ACCM+T is sourced from the original manufacturer or authorized distributors?
All MAX4800ACCM+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 MAX4800ACCM+T meets industry standards.
7.What is the process for return or replacement of MAX4800ACCM+T?
All MAX4800ACCM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4800ACCM+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 MAX4800ACCM+T part is unused and in its original packaging.
Return procedure for MAX4800ACCM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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