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Analog Devices Inc./Maxim Integrated MAX14803CCM+CP3
- Part No.:
- MAX14803CCM+CP3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 48-LQFP
- Datasheet:
-
MAX14803CCM+CP3.pdf
- Description:
- IC SW SPST-NOX16 48OHM 48LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
The MAX14803CCM+CP3 from Maxim Integrated is a 16-channel, high-voltage analog SPST switch IC designed for ultrasound imaging probe and industrial printer signal routing. It delivers low-charge-injection (350 pC typ at +160V/–40V), 16-bit serial-controlled switching, integrated 35 kΩ bleed resistors on all COM/NO terminals, ±100V/0V to +200V high-voltage supply capability (VPP – VNN ≤ 250 V), and operates with a separate +2.7V to +5.5V logic supply. It is used in medical transducer array multiplexing where precise high-voltage channel selection and capacitive load discharge are critical.
For engineers reviewing the MAX14803CCM+CP3 datasheet, MAX14803CCM+CP3 pinout, MAX14803CCM+CP3 application, or MAX14803CCM+CP3 equivalent, key selection criteria include verified 16-channel HV switch performance under +100V/–100V bias, confirmed bleed resistor integration, measured off-isolation (–77 dB at 5 MHz, RL = 50 Ω), daisy-chainable 20 MHz serial interface timing, and LQFP-48 package thermal characteristics (θJA = 44°C/W).
Technical Context
This device implements a 16-bit shift register with transparent latch, enabling serial programming of individual SPST switches via DIN/CLK/LE/CLR signals referenced to VDD. Each switch features clamping diodes at COM_ for positive overshoot protection and supports analog signal ranges from VNN to min(VNN + 200 V, VPP – 10 V).
It uses HVCMOS process technology to achieve low on-resistance (16–48 Ω depending on voltage and current), fast switching (tON/tOFF = 2–3.5 µs), and wide high-voltage supply flexibility (e.g., +40V/–160V, +100V/–100V, +200V/0V). The integrated 35 kΩ bleed resistors-present only on MAX14803/MAX14803A variants-discharge piezoelectric transducer capacitance between transmit pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPP – VNN Max | 250 V - Enables flexible high-voltage rail configurations including +100V/–100V, +200V/0V, or +40V/–160V without exceeding absolute limit. |
| RONS (typ) | 18–27 Ω at +100V/–100V, 200 mA - Ensures minimal signal attenuation and power loss in high-current transmit paths. |
| Charge Injection | 350 pC (typ) at +160V/–40V - Reduces image artifacts and baseline drift in ultrasound beamforming circuits. |
| Off-Isolation | –77 dB at 5 MHz, RL = 50 Ω - Maintains channel crosstalk suppression critical for multi-element transducer arrays. |
| Serial Clock Rate | 20 MHz (at VDD = +5 V) - Supports rapid reconfiguration of all 16 channels within <1 µs per update cycle. |
| Bleed Resistors | 35 kΩ per terminal (COM_/NO_) - Actively discharges transducer capacitance between pulses, preventing voltage hang-up and improving pulse fidelity. |
| VDD Supply Range | +2.7 V to +5.5 V - Allows direct interfacing with standard 3.3 V or 5 V microcontrollers and FPGAs. |
Pinout & Package
The MAX14803CCM+CP3 is housed in a 48-pin LQFP (7 mm × 7 mm) package with exposed pad, RoHS-compliant, and rated for commercial temperature range (0°C to +70°C). Thermal resistance is θJA = 44°C/W (four-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM15, NO0–NO15 | 16× SPST analog switch terminals | Each pair forms an independently controllable high-voltage path; all include integrated bleed resistors and clamping diodes. |
| VPP / VNN | High-voltage supply rails | VPP accepts up to +220 V, VNN down to –220 V; differential max 250 V; bypassing with ≥0.1 µF ceramic required. |
| VDD / GND | Digital logic supply and reference | Separate 2.7–5.5 V domain isolates control logic from HV noise; decoupling mandatory. |
| DIN / CLK / LE / CLR / DOUT | Serial interface control and data | Standard SPI-like 16-bit shift-and-latch protocol; DOUT enables daisy-chaining multiple devices. |
Key Features
| Feature | Design Value |
|---|---|
| 16-channel HV SPST switching | Enables full transducer array multiplexing in compact probe head designs without external HV relays. |
| Integrated 35 kΩ bleed resistors | Eliminates need for discrete discharge networks, reducing PCB area and improving reliability in ultrasound transmit chains. |
| Clamping diodes on COM_ terminals | Protects downstream circuitry from positive voltage overshoot during fast switching of capacitive loads. |
| Power-on reset (POR) | Guarantees all 16 switches start open at power-up, preventing unintended HV connection during system boot. |
| Daisy-chainable serial interface | Allows scalable expansion to 32+, 48+, or N×16 channels using single controller GPIOs and clock lines. |
Applications
| Ultrasound Transducer Multiplexing | Industrial High-Voltage Printer Head Control |
|---|---|
Use Scenario: Routing high-voltage excitation pulses across 64–128 element linear or phased-array transducers in portable and cart-based ultrasound systems. IC Role / Device Role / Timing Role: 16-channel HV analog switch providing channel-select isolation and fast turn-on/off (2–3.5 µs) synchronized to beamformer timing. Use Value: Enables compact probe design with reduced cable count and eliminates mechanical relay wear, supporting real-time B-mode and Doppler imaging. | Use Scenario: Driving electrostatic print heads requiring precise ±100 V switching and rapid discharge between dot patterns in high-speed industrial printers. IC Role / Device Role / Timing Role: High-voltage SPST switch managing charge/discharge cycles on print electrode arrays with integrated bleed resistors. Use Value: Improves print resolution and consistency by minimizing residual voltage on electrodes, reducing ghosting and streak artifacts. |
| Medical Imaging Beamformer Interface | Capacitive Load Discharge Module |
Use Scenario: Interfacing FPGA-based digital beamformers to analog front-end HV transmit stages in modular ultrasound mainframes. IC Role / Device Role / Timing Role: Serial-programmable HV switch acting as programmable transmit path selector with sub-microsecond update latency. Use Value: Supports dynamic sector scanning and harmonic imaging modes via software-controlled channel enable/disable without hardware changes. | Use Scenario: Active discharge of piezoelectric or electret capacitors after high-voltage actuation in precision motion control and MEMS driver circuits. IC Role / Device Role / Timing Role: Integrated 35 kΩ bleed path per terminal ensures predictable RC decay (<100 µs for 1 nF load) without external components. Use Value: Prevents voltage retention that causes timing jitter or false triggering in closed-loop feedback systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14802CCM+ | No integrated bleed resistors; identical pinout, timing, and HV specs; same LQFP-48 package and 0°C to +70°C rating. | Requires external bleed network for transducer discharge; suitable where layout space allows discrete resistors and cost sensitivity outweighs integration benefit. | Select MAX14802CCM+ only if bleed function is implemented externally and BOM simplification is not prioritized. |
| MAX14803AEWZ+ | 110-bump WLP package; extended –40°C to +85°C rating; same bleed resistors and OVP; smaller footprint but different land pattern and thermal behavior (θJA = 27°C/W). | Targeted for space-constrained, wide-temperature industrial or portable medical devices; requires redesign of PCB layout and thermal management. | Choose MAX14803AEWZ+ when miniaturization and extended temperature operation are mandatory, and WLP assembly capability exists. |
Compared with MAX14802CCM+, the MAX14803CCM+CP3 adds essential bleed functionality without changing pinout or logic interface-enabling drop-in upgrade for transducer discharge. Against MAX14803AEWZ+, it trades package size and temperature range for proven LQFP manufacturability and thermal predictability in volume production.
Availability
The MAX14803CCM+CP3 is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial printer head drivers, and high-voltage test equipment requiring stable component supply, long-term obsolescence planning, and RoHS-compliant sourcing.
Supply support for MAX14803CCM+CP3 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX1480x family was engineered specifically for high-reliability, high-voltage analog signal routing in medical ultrasound and precision industrial equipment-emphasizing low charge injection, integrated protection, and robust serial control.
FAQ
What is the maximum allowable VPP – VNN voltage difference for the MAX14803CCM+CP3?
The MAX14803CCM+CP3 supports a maximum VPP – VNN differential of 250 V, validated across configurations including +100V/–100V, +200V/0V, and +40V/–160V. This limit is defined in the Absolute Maximum Ratings table and must not be exceeded to ensure device reliability. Operation beyond this range risks permanent damage, regardless of individual rail voltage compliance.
Does the MAX14803CCM+CP3 include integrated bleed resistors, and what is their value?
Yes, the MAX14803CCM+CP3 includes integrated 35 kΩ bleed resistors on every COM_ and NO_ terminal-confirmed in the Functional Diagram, Detailed Description, and Ordering Information sections. These resistors discharge capacitive loads such as piezoelectric transducers between transmit pulses, eliminating the need for external discharge networks and improving pulse fidelity in ultrasound applications.
What is the typical on-resistance of the MAX14803CCM+CP3 under +100V/–100V supply conditions?
Under +100V/–100V supply conditions with 200 mA load current, the MAX14803CCM+CP3 exhibits a typical on-resistance (RONS) of 18–27 Ω, as specified in the Electrical Characteristics table. This low RONS minimizes I²R losses and voltage droop in high-current transmit paths, directly supporting clean excitation of transducer elements in medical imaging systems.
Can multiple MAX14803CCM+CP3 devices be daisy-chained, and how is this implemented?
Yes, the MAX14803CCM+CP3 supports daisy-chaining via its DOUT pin, which outputs shifted data delayed by 16 clock cycles. To chain devices, connect DOUT of one IC to DIN of the next while sharing CLK, LE, and CLR lines. A single controller can then program all devices sequentially, with LE pulse synchronizing latch updates across the entire chain-enabling scalable channel expansion without additional GPIOs.
What is the purpose of the clamping diodes in the MAX14803CCM+CP3, and where are they located?
The clamping diodes in the MAX14803CCM+CP3 are located at each COM_ terminal and provide overvoltage protection against positive overshoot during fast switching of capacitive loads. As stated in the Detailed Description and Applications Information, these diodes clamp transient voltages to safe levels, protecting downstream circuitry-especially critical in ultrasound probe interfaces where transducer ringing can generate >+5 V spikes beyond rail limits.
MAX14803CCM+CP3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 16
- On-State Resistance (Max):
- 48Ohm
- Channel-to-Channel Matching (ΔRon):
- 2.4Ohm
- Voltage - Supply, Single (V+):
- 40V ~ 250V
- Voltage - Supply, Dual (V±):
- ±160V
- Switch Time (Ton, Toff) (Max):
- 3.5µs, 3.5µs
- -3db Bandwidth:
- 20MHz
- Charge Injection:
- 820pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF
- 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)
MAX14803CCM+CP3 FAQ
1.How can I place an order for MAX14803CCM+CP3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14803CCM+CP3 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 MAX14803CCM+CP3 reliable?
The price and inventory of MAX14803CCM+CP3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14803CCM+CP3 is usually 5 days.
3.What payment methods are accepted for MAX14803CCM+CP3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14803CCM+CP3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14803CCM+CP3?
MAX14803CCM+CP3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14803CCM+CP3 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 MAX14803CCM+CP3?
For technical support, including MAX14803CCM+CP3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14803CCM+CP3 requirements.
6.How does Aetrix verify that MAX14803CCM+CP3 is sourced from the original manufacturer or authorized distributors?
All MAX14803CCM+CP3 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 MAX14803CCM+CP3 meets industry standards.
7.What is the process for return or replacement of MAX14803CCM+CP3?
All MAX14803CCM+CP3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX14803CCM+CP3, 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 MAX14803CCM+CP3 part is unused and in its original packaging.
Return procedure for MAX14803CCM+CP3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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