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Analog Devices Inc./Maxim Integrated MAX14803CCM+TCP3
- Part No.:
- MAX14803CCM+TCP3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 48-LQFP
- Datasheet:
-
MAX14803CCM+TCP3.pdf
- Description:
- IC SW SPST-NOX16 48OHM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,470
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Product details
Overview
The MAX14803CCM+TCP3 from Maxim Integrated is a 16-channel, high-voltage analog SPST switch IC designed for ultrasound imaging probe and industrial printer systems. It delivers low-charge-injection switching (350–820 pC), 16-bit serial control, integrated 35 kΩ bleed resistors per terminal, ±100V/0V to +200V high-voltage supply operation (VPP − VNN ≤ 250 V), and operates over 0°C to +70°C in a 48-pin LQFP package.
For engineers reviewing the MAX14803CCM+TCP3 datasheet, MAX14803CCM+TCP3 pinout, MAX14803CCM+TCP3 application, or MAX14803CCM+TCP3 equivalent, key selection criteria include high-voltage analog signal integrity (−77 dB off-isolation at 5 MHz), daisy-chainable 20 MHz serial interface, HVCMOS process reliability, and integrated bleed resistors for piezoelectric transducer discharge in medical ultrasound transmit paths.
Technical Context
The MAX14803CCM+TCP3 implements a 16-bit shift register with transparent latch, enabling precise per-channel ON/OFF control via DIN/CLK/LE/CLR digital interface operating from +2.7V to +5.5V VDD. Its HVCMOS process supports analog signal ranges from VNN to min(VNN + 200 V, VPP − 10 V) with peak current capability of 3 A per channel.
Integrated 35 kΩ bleed resistors on each COM_ and NO_ terminal discharge capacitive loads-critical for ultrasound transducer settling-while clamping diodes at COM_ terminals provide overvoltage protection against positive overshoot up to +220 V. Power-on reset ensures all switches default open.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPP − VNN Supply Range | Up to 250 V differential (e.g., +100 V/−100 V or +200 V/0 V); enables flexible high-voltage biasing in ultrasound transmit stages |
| Small-Signal On-Resistance | 18–48 Ω (typ), dependent on voltage conditions; ensures minimal insertion loss in analog signal paths |
| Off-Isolation | −77 dB at 5 MHz (RL = 50 Ω); maintains channel crosstalk suppression in multi-element transducer arrays |
| Charge Injection | 350–820 pC (typ); minimizes voltage glitch on sensitive piezoelectric elements during switching |
| Serial Interface Speed | 20 MHz max CLK frequency (at VDD = +5 V); supports rapid reconfiguration of 16 channels in real-time beamforming |
| Quiescent Current | 5 µA typ (VDD supply); reduces standby power in battery-backed or thermally constrained systems |
| Analog Bandwidth | 20 MHz (VPP = +100 V, VNN = −100 V, CL = 200 pF); preserves fidelity of pulsed RF signals in diagnostic imaging |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm), RoHS-compliant, commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM15, NO0–NO15 | 16 independent analog switch terminals | Each COM_/NO_ pair forms an SPST switch; supports bidirectional high-voltage signal routing with <350 pC charge injection |
| VPP / VNN | High-voltage positive/negative supplies | Supports asymmetric rails (e.g., +40 V/−160 V); must be bypassed with ≥0.1 µF ceramic capacitors near pins |
| VDD / GND | Digital logic supply and reference | +2.7 V to +5.5 V operation; powers shift register, latch, and level shifters-electrically isolated from HV domain |
| DIN / CLK / LE / CLR / DOUT | Serial control interface | 16-bit daisy-chainable interface; LE active-low latches data; CLR high resets all switches open; DOUT enables cascading |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 35 kΩ bleed resistors | Discharges piezoelectric transducer capacitance between pulses-eliminates need for external bleeder networks in ultrasound probes |
| Clamping diodes at COM_ terminals | Protects against +220 V positive overshoot, enabling robust operation in noisy high-voltage environments like printer HV drivers |
| Low-charge-injection HVCMOS process | Reduces voltage disturbance on sensitive analog nodes-critical for maintaining SNR in medical ultrasound receive path isolation |
| Power-on reset (POR) | Guarantees all 16 switches start open at power-up-prevents unintended high-voltage connection during system initialization |
| Daisy-chainable 16-bit serial interface | Enables scalable control of multiple MAX14803CCM+TCP3 devices using single microcontroller SPI port-reduces GPIO count in multi-probe systems |
Applications
| Ultrasound Imaging Probe | Industrial Printer HV Driver |
|---|---|
Use Scenario: High-voltage transmit switching for 64–128 element phased-array transducers in handheld or cart-based diagnostic systems. IC Role / Device Role / Timing Role: 16-channel SPST switch controlling HV pulse delivery to individual transducer elements; synchronized via microcontroller SPI. Use Value: Integrated bleed resistors ensure fast transducer discharge between pulses, enabling higher frame rates without residual voltage artifacts. | Use Scenario: Driving electrostatic print heads requiring precise ±100 V switching with fast turn-on/turn-off (<3.5 µs) and low leakage. IC Role / Device Role / Timing Role: High-voltage analog switch managing HV bias to print head electrodes; controlled by FPGA or ASIC timing engine. Use Value: −77 dB off-isolation prevents crosstalk between adjacent print channels, ensuring sharp dot placement and consistent toner adhesion. |
| Medical Ultrasound Mainframe | Multi-Probe System Selector |
Use Scenario: Channel multiplexing and isolation in ultrasound mainframes supporting 2–4 interchangeable probes with independent HV transmit paths. IC Role / Device Role / Timing Role: HV analog switch providing probe-specific transmit path selection and isolation; coordinated with relay banks and HV amplifiers. Use Value: 20 MHz serial interface allows dynamic reconfiguration of probe mapping within microseconds-enabling real-time probe switching without system reset. | Use Scenario: Selecting among multiple ultrasound probes (A/B/C/D) while maintaining galvanic isolation and HV integrity across all channels. IC Role / Device Role / Timing Role: 16-channel switch array acting as probe interface matrix; controlled via daisy-chained configuration bus. Use Value: Integrated clamping diodes protect against ESD and transient spikes during hot-plug probe insertion-improving field reliability and serviceability. |
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; same 48-pin LQFP, 0°C to +70°C rating, identical pinout and logic interface | Suitable where external bleed networks are acceptable or preferred for thermal/power optimization | Select MAX14802CCM+ when board-level bleed resistors already exist or when lower quiescent power (no internal bleed current) is prioritized |
| MAX14803AEWZ+ | 110-bump WLP package, −40°C to +85°C extended temp range, same bleed resistors and OVP features | Targeted at space-constrained, wide-temp industrial or portable ultrasound designs requiring smaller footprint | Choose MAX14803AEWZ+ for compact, ruggedized systems where LQFP thermal mass or PCB area is limiting |
Compared with MAX14802CCM+, the MAX14803CCM+TCP3 adds critical bleed resistors for transducer discharge-reducing BOM count and improving pulse fidelity-while MAX14803AEWZ+ trades LQFP manufacturability for WLP miniaturization and extended temperature support.
Availability
MAX14803CCM+TCP3 is available at Aetrix Electronics and suitable for ultrasound imaging probe design, industrial printer HV driver development, and medical mainframe channel multiplexing requiring stable component supply and long-term production continuity.
Supply support for MAX14803CCM+TCP3 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 MAX14803 series belongs to Maxim's high-voltage analog switch product line, engineered specifically for demanding ultrasound transmit switching and industrial HV load control where low charge injection, integrated protection, and daisy-chain scalability are essential.
FAQ
What is the maximum allowable VPP − VNN differential voltage for the MAX14803CCM+TCP3?
The MAX14803CCM+TCP3 supports a maximum VPP − VNN differential of 250 V, as confirmed in Absolute Maximum Ratings and Electrical Characteristics tables. Valid configurations include +100 V/−100 V, +200 V/0 V, and +40 V/−160 V. Exceeding 250 V risks permanent damage. The MAX14803CCM+TCP3 must also satisfy VPP ≤ +220 V and VNN ≥ −220 V individually.
Does the MAX14803CCM+TCP3 require external bleed resistors for ultrasound transducer discharge?
No. The MAX14803CCM+TCP3 integrates 35 kΩ bleed resistors on each COM_ and NO_ terminal-explicitly documented in the General Description, Detailed Description, and Ordering Information sections. This eliminates the need for external bleed components in ultrasound probe designs, simplifying layout and improving reliability.
What is the function of the CLR pin on the MAX14803CCM+TCP3?
The CLR (Clear) pin on the MAX14803CCM+TCP3 is an active-high input that resets the internal latch to zero, forcing all 16 switches to the OFF (open) state. As stated in the Functional Diagram and Detailed Description, CLR overrides all other inputs-including LE and clocked data-and does not affect the shift register contents. A logic-high pulse on CLR opens all switches immediately.
Can multiple MAX14803CCM+TCP3 devices be daisy-chained, and how is synchronization achieved?
Yes. The MAX14803CCM+TCP3 supports daisy-chaining via its DOUT pin, which outputs shifted data delayed by 16 clocks. To synchronize, connect DOUT of one device to DIN of the next, drive shared CLK, LE, and CLR lines, then pulse LE low after loading all shift registers. This ensures simultaneous update of all switches across the chain, as verified in Figure 3 and Applications Information.
What is the typical charge injection value of the MAX14803CCM+TCP3 under +100 V/−100 V supply conditions?
Under VPP = +100 V and VNN = −100 V with VCOM_ = 0 V, the MAX14803CCM+TCP3 exhibits a typical charge injection of 600 pC, as specified in the Electrical Characteristics table on page 3 of the datasheet. This value is measured and guaranteed across temperature, directly impacting voltage glitch magnitude on connected piezoelectric transducers.
MAX14803CCM+TCP3 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+TCP3 FAQ
1.How can I place an order for MAX14803CCM+TCP3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14803CCM+TCP3 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+TCP3 reliable?
The price and inventory of MAX14803CCM+TCP3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14803CCM+TCP3 is usually 5 days.
3.What payment methods are accepted for MAX14803CCM+TCP3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14803CCM+TCP3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14803CCM+TCP3?
MAX14803CCM+TCP3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14803CCM+TCP3 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+TCP3?
For technical support, including MAX14803CCM+TCP3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14803CCM+TCP3 requirements.
6.How does Aetrix verify that MAX14803CCM+TCP3 is sourced from the original manufacturer or authorized distributors?
All MAX14803CCM+TCP3 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+TCP3 meets industry standards.
7.What is the process for return or replacement of MAX14803CCM+TCP3?
All MAX14803CCM+TCP3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX14803CCM+TCP3, 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+TCP3 part is unused and in its original packaging.
Return procedure for MAX14803CCM+TCP3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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