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Analog Devices Inc./Maxim Integrated MAX14803CCM+T
- Part No.:
- MAX14803CCM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 48-LQFP
- Datasheet:
-
MAX14803CCM+T.pdf
- Description:
- IC SW SPST-NOX16 48OHM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,026
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Product details
Overview
The MAX14803CCM+ 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 ±100V/0V to +40V/−160V high-voltage operation, 20MHz small-signal bandwidth, <3.5µs turn-on/off time, integrated 35kΩ bleed resistors on all COM/NO terminals, and operates with 2.7V–5.5V logic supply. It enables precise high-voltage channel selection in medical transducer arrays.
For engineers reviewing the MAX14803CCM+ datasheet, MAX14803CCM+ pinout, MAX14803CCM+ application, or MAX14803CCM+ equivalent, this page provides verified specifications, LQFP-48 pin mapping, real-world ultrasound and printer use cases, and validated alternative parts - all grounded in Maxim's official datasheet Rev 5 (2/21).
Technical Context
The MAX14803CCM+ integrates 16 independent HVCMOS SPST switches controlled via a daisy-chainable 16-bit serial interface (DIN/CLK/LE/CLR/DOUT) with transparent latch and power-on reset. Each switch features clamping diodes at COM_ for +overshoot protection and 35kΩ internal bleed resistors on both COM_ and NO_ terminals to discharge piezoelectric capacitive loads.
It supports flexible high-voltage supplies up to VPP − VNN = 250V (e.g., +100V/−100V, +200V/0V, +40V/−160V), while digital logic runs independently on VDD = 2.7V–5.5V. Analog signal range is constrained to VNN ≤ VCOM_/VNO_ ≤ min(VNN + 200V, VPP − 10V), ensuring safe operation during power-up/down when inputs are unconnected or within rail limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPP − VNN Max | 250V - Enables wide-range HV biasing including ±100V, +200V/0V, and +40V/−160V configurations |
| Small-Signal Bandwidth | 20MHz - Supports high-fidelity transmit pulse shaping in ultrasound systems up to 5MHz fundamental frequency |
| Turn-On/Off Time | 2–3.5µs - Ensures fast channel switching for multi-element beam steering without timing skew |
| Charge Injection | 600pC (typ, +100V/−100V) - Minimizes voltage glitch on sensitive piezoelectric transducer nodes |
| Off-Isolation @ 5MHz | −77dB (RL = 50Ω) - Provides strong channel-to-channel crosstalk suppression in dense probe layouts |
| Bleed Resistors | 35kΩ per terminal - Actively discharges transducer capacitance between pulses, preventing residual voltage buildup |
| Logic Supply Range | 2.7V–5.5V - Compatible with standard microcontroller I/O without level-shifting in embedded control subsystems |
Pinout & Package
MAX14803CCM+ uses a 48-pin LQFP package (7mm × 7mm, package code C48+6, outline 21-0054). Thermal resistance θJA = 44°C/W (4-layer board). All pins match MAX14802/MAX14803 pinout; N.C. pins are not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 14, 16, 24, 35, 36 | N.C. | No internal connection - must be left floating or tied to GND per layout best practice |
| 3, 6, 9, 12, 25, 28, 29, 31, 34, 37, 39, 41, 44, 46, 47, 48 | COM0–COM15 | Common analog terminals - connect to transducer common bus or printer HV return path |
| 4, 5, 7, 10, 11, 26, 27, 30, 32, 33, 38, 40, 42, 43, 45, 48 | NO0–NO15 | Normally-open analog terminals - route HV drive signals to individual transducer elements or print head segments |
| 13 | VNN | Negative HV supply - bypass to GND with ≥0.1µF ceramic capacitor; supports −160V to 0V |
| 15 | VPP | Positive HV supply - bypass to GND with ≥0.1µF ceramic capacitor; supports +40V to +220V |
| 17 | GND | Analog/digital ground reference - low-impedance star point for HV return and logic stability |
| 18 | VDD | Digital logic supply - powers shift register, latch, and interface; requires local 0.1µF decoupling |
| 19 | DIN | Serial data input - MSB-first 16-bit command stream controlling switch states |
| 20 | CLK | Serial clock input - up to 20MHz (5V), synchronizes DIN data into internal shift register |
| 21 | LE | Latch enable (active-low) - transfers shift register contents to output latch; used to update all 16 switches simultaneously |
| 22 | CLR | Latch clear (active-high) - forces all switches open regardless of shift register state; overrides LE and CLK |
| 23 | DOUT | Serial data output - DIN delayed by 16 clocks; enables daisy-chaining of multiple MAX14803CCM+ devices |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 35kΩ bleed resistors | Discharges piezoelectric transducer capacitance between pulses, eliminating need for external bleeder networks |
| Clamping diodes at COM_ terminals | Protects against positive voltage overshoot beyond VPP, critical for transducer ringing suppression |
| Daisy-chainable 16-bit serial interface | Reduces MCU GPIO count: one SPI-like bus controls dozens of channels across multiple ICs |
| Power-on reset (POR) | Guarantees all 16 switches start OPEN at power-up - prevents unintended HV shorting during boot |
| Low charge injection (600pC typ) | Minimizes transient voltage error on high-impedance transducer nodes, preserving pulse fidelity |
Applications
| Ultrasound Probe Multiplexing | Industrial Printer Head Switching |
|---|---|
|
Use Scenario: Routing high-voltage excitation pulses to 64–128 piezoelectric elements in phased-array ultrasound probes. IC Role / Device Role / Timing Role: 16-channel HV analog switch providing channel-select isolation and fast switching (<3.5µs) synchronized to beamforming timing. Use Value: Enables compact, low-glitch probe designs with integrated bleed resistors eliminating discrete HV discharge components. |
Use Scenario: Selecting individual print head segments in high-speed industrial inkjet printers requiring ±100V drive. IC Role / Device Role / Timing Role: High-voltage SPST switch managing HV activation sequence across 16 nozzles per IC with 20MHz bandwidth. Use Value: Reduces PCB area vs. relay-based solutions and eliminates mechanical wear while supporting >50kHz switching frequency. |
| Medical Imaging Mainframe HV Routing | Multi-Probe System Selection |
|
Use Scenario: HV signal distribution from mainframe transmit circuitry to multiple interchangeable ultrasound probes. IC Role / Device Role / Timing Role: High-isolation (−77dB @5MHz) analog switch isolating probe-specific HV paths during probe hot-swap. Use Value: Prevents cross-talk between probe channels and ensures safe, glitch-free probe changeover under live HV conditions. |
Use Scenario: Enabling rapid switching between 2–4 ultrasound probes connected to a single imaging system. IC Role / Device Role / Timing Role: 16-channel switch array acting as probe interface matrix, controlled via daisy-chained serial interface. Use Value: Eliminates manual re-cabling; supports software-selectable probe configuration with sub-millisecond switching. |
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 |
|---|---|---|---|
| MAX14802CCM+ | No integrated bleed resistors; same 48-pin LQFP, 0°C to +70°C rating, identical pinout and serial interface | Requires external 35kΩ bleed resistors per channel - increases BOM count and layout complexity | Select when external bleed control or thermal budget optimization is required; otherwise MAX14803CCM+ reduces component count |
| MAX14803AEWZ+ | 110-bump WLP package, −40°C to +85°C extended temp range, same bleed resistors and OVP | Smaller footprint (5.81mm × 5.43mm) but requires fine-pitch assembly; suited for space-constrained portable ultrasound | Choose for compact, ruggedized designs needing wider temperature operation; MAX14803CCM+ preferred for standard LQFP assembly |
Compared with MAX14802CCM+, the MAX14803CCM+ reduces system-level component count via integrated bleed resistors; compared with MAX14803AEWZ+, it offers simplified PCB assembly and commercial-temperature suitability without sacrificing core HV switching performance.
Availability
MAX14803CCM+ is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial printer controllers, and medical diagnostic equipment requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for MAX14803CCM+ 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-reliability semiconductor solutions for medical, industrial, and communications markets.
The MAX14803CCM+ belongs to Maxim's high-voltage analog switch product line, engineered specifically for ultrasound transducer multiplexing and industrial HV signal routing where low charge injection, integrated protection, and robust serial control are essential.
FAQ
What is the maximum allowable voltage difference between VPP and VNN for the MAX14803CCM+?
The MAX14803CCM+ supports a maximum VPP − VNN differential of 250V, as confirmed in the Absolute Maximum Ratings table. Valid configurations include +100V/−100V (200V), +200V/0V (200V), and +40V/−160V (200V); the 250V limit allows future margin for custom supply rails. Exceeding this risks permanent device damage.
Does the MAX14803CCM+ require external bleed resistors?
No - the MAX14803CCM+ integrates 35kΩ bleed resistors on every COM_ and NO_ terminal, explicitly stated in the General Description and Applications Information sections. This eliminates the need for external bleed networks in ultrasound transducer discharge applications, distinguishing it from the MAX14802CCM+.
What is the operating temperature range specified for the MAX14803CCM+?
The MAX14803CCM+ is specified for the commercial temperature range of 0°C to +70°C, as documented in the Ordering Information table and Package Information section. This differs from the extended −40°C to +85°C range of the MAX14803AEWZ+ variant and the MAX14802ECM+.
Can multiple MAX14803CCM+ devices be connected in series for expanded channel count?
Yes - the MAX14803CCM+ supports daisy-chaining via its DOUT pin, which outputs DIN delayed by 16 clock cycles. As shown in Figure 3 and Applications Information, connecting DOUT of one device to DIN of the next enables cascaded 16-bit shift registers, allowing scalable channel expansion without additional MCU GPIOs.
How does the power-on reset function behave in the MAX14803CCM+?
The MAX14803CCM+ incorporates an internal power-on reset (POR) circuit that forces all 16 switches to the OPEN state at power-up, regardless of shift register content. This behavior is guaranteed per the Detailed Description and Functional Diagram, preventing hazardous HV shorts during system initialization.
MAX14803CCM+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:
- 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+T FAQ
1.How can I place an order for MAX14803CCM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14803CCM+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 MAX14803CCM+T reliable?
The price and inventory of MAX14803CCM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14803CCM+T is usually 5 days.
3.What payment methods are accepted for MAX14803CCM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14803CCM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14803CCM+T?
MAX14803CCM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14803CCM+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 MAX14803CCM+T?
For technical support, including MAX14803CCM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14803CCM+T requirements.
6.How does Aetrix verify that MAX14803CCM+T is sourced from the original manufacturer or authorized distributors?
All MAX14803CCM+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 MAX14803CCM+T meets industry standards.
7.What is the process for return or replacement of MAX14803CCM+T?
All MAX14803CCM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14803CCM+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 MAX14803CCM+T part is unused and in its original packaging.
Return procedure for MAX14803CCM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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