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Analog Devices Inc./Maxim Integrated MAX14802CCM+T
- Part No.:
- MAX14802CCM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 48-LQFP
- Datasheet:
-
MAX14802CCM+T.pdf
- Description:
- IC SW SPST-NOX16 48OHM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,707
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Product details
Overview
The MAX14802CCM+T 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 (350–820 pC), 16-bit serial-controlled switching with ±100V/0V to +200V high-voltage supply flexibility, 20 MHz analog bandwidth, and -77 dB off-isolation at 5 MHz (RL = 50 Ω). Its HVCMOS process enables robust operation in medical transducer multiplexing.
For engineers reviewing the MAX14802CCM+T datasheet, MAX14802CCM+T pinout, MAX14802CCM+T application, or MAX14802CCM+T equivalent, this page provides verified specifications, LQFP-48 pin mapping, commercial-grade temperature range (-40°C to +85°C), integrated clamping diodes for positive overshoot protection, and validated alternative part comparisons - all grounded in Maxim's official datasheet Rev 5 (2/21).
Technical Context
The MAX14802CCM+T implements a 16-bit serial shift register with transparent latch, controlled via DIN/CLK/LE/CLR signals referenced to a separate +2.7V to +5.5V VDD supply. All 16 switches are independently programmable SPST structures with COM_/NO_ terminals rated for analog signal ranges from VNN to min(VNN + 200V, VPP − 10V).
It features power-on reset ensuring all switches default open, integrated clamping diodes on COM_ terminals for overvoltage protection, and operates across asymmetric high-voltage supplies up to VPP − VNN = 250 V. Unlike MAX14803 variants, it omits bleed resistors - confirming its targeted use in low-capacitance, fast-switching ultrasound transmit paths where passive discharge is not required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPP − VNN Max | 250 V - supports asymmetric supplies like +40V/−160V, +100V/−100V, or +200V/0V without external level-shifting. |
| Analog Bandwidth | 20 MHz - enables clean transmission of ultrasonic pulses up to ~10 MHz fundamental frequency with minimal distortion. |
| Off-Isolation @ 5 MHz | −77 dB (RL = 50 Ω) - ensures channel crosstalk remains below −77 dB during multi-channel receive phase. |
| Charge Injection | 350 pC (typ, VPP = +160V/VNN = −40V) - minimizes voltage glitch on piezoelectric transducer nodes during switching. |
| On-Resistance (RONS) | 16–48 Ω (varies with VPP/VNN and load current) - maintains low insertion loss across full high-voltage operating range. |
| Logic Supply Range | +2.7V to +5.5V - compatible with standard 3.3V or 5V microcontroller I/O without level translation. |
| Operating Temp | −40°C to +85°C - qualified for extended industrial and medical equipment environments beyond commercial grade. |
Pinout & Package
MAX14802CCM+T is housed in a 48-pin LQFP (7 mm × 7 mm, package code C48+6), RoHS-compliant, with thermal resistance θJA = 44°C/W on a four-layer board. Pin functions are fully defined per Maxim's datasheet Rev 5 (pp. 7–10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM15, NO0–NO15 | 16× Analog Switch Terminals | Each COM_/NO_ pair forms an independent SPST switch; COM_ includes integrated clamping diode to GND for +overshoot protection. |
| VPP / VNN | High-Voltage Supplies | VPP accepts +40V to +220V; VNN accepts −220V to 0V; differential max = 250 V; bypass with ≥0.1 µF ceramic capacitors. |
| VDD / GND | Digital Supply & Reference | VDD powers logic interface (+2.7V to +5.5V); GND serves as common reference for digital and analog domains. |
| DIN / CLK / LE / CLR / DOUT | Serial Control Interface | 20 MHz capable daisy-chainable interface; LE active-low latches data; CLR high resets all switches open unconditionally. |
| N.C. | No Connection | 32 pins marked N.C. - must remain unconnected; no internal connection or function. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Charge-Injection Switching | 350–820 pC typical - reduces transient voltage spikes on high-impedance transducer elements, preserving signal fidelity in pulse-echo imaging. |
| Integrated COM-Side Clamping Diodes | Protects against +overshoot up to VPP + 0.3V - eliminates need for external TVS diodes in ultrasound transmit path. |
| 20 MHz Serial Clock Support | Enables full 16-bit update in ≤800 ns - critical for real-time beamforming control with minimal latency. |
| Power-On Reset Default State | All 16 switches initialize open - prevents unintended high-voltage connection during system boot or brownout recovery. |
| Asymmetric HV Supply Flexibility | VPP − VNN ≤ 250 V, with VNN down to −160V and VPP up to +220V - accommodates legacy and next-gen transducer bias schemes. |
Applications
| Ultrasound Transmit Multiplexing | Industrial Piezoelectric Actuator Control |
|---|---|
|
Use Scenario: Selecting one of 16 transducer elements in a linear array probe for high-voltage pulsing while isolating non-driven elements. IC Role / Device Role / Timing Role: High-voltage SPST switch managing ±100V, 1–2A peak transmit pulses; timing-critical turn-on/off <3.5 µs ensures precise echo window alignment. Use Value: −77 dB off-isolation prevents cross-talk between adjacent channels during receive phase, directly improving image contrast resolution. |
Use Scenario: Driving individual piezoelectric stacks in high-precision inkjet printheads requiring fast, high-voltage switching with minimal charge injection. IC Role / Device Role / Timing Role: Low-charge-injection analog switch enabling sub-microsecond transitions between +160V/−40V states for droplet ejection timing control. Use Value: 350 pC typical charge injection limits voltage glitch on capacitive loads (<1 nF), preventing misfire or inconsistent droplet volume. |
| Medical Imaging Mainframe Channel Routing | High-Voltage Test Equipment Signal Path Switching |
|
Use Scenario: Routing high-voltage transmit signals from mainframe drivers to multiple interchangeable probes (A–D) using relay-assisted topology. IC Role / Device Role / Timing Role: Front-end HV switch providing isolation between probe cables and driver stages; operates with VPP/VNN = +100V/−100V under 50 kHz switching. Use Value: 20 MHz analog bandwidth preserves pulse shape integrity up to 10 MHz, supporting harmonic imaging modes without spectral distortion. |
Use Scenario: Automated test system switching between multiple DUTs under high-voltage bias (e.g., capacitor leakage, varistor breakdown testing). IC Role / Device Role / Timing Role: Programmable HV analog switch replacing electromechanical relays; controlled via microcontroller SPI interface with daisy-chained configuration. Use Value: 16 independent channels reduce PCB footprint vs. discrete relay solutions; 48-pin LQFP allows automated assembly and thermal management up to 1818 mW. |
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 |
|---|---|---|---|
| MAX14802ECM+ | Identical electrical specs and pinout; qualified for −40°C to +85°C extended temperature range (vs. MAX14802CCM+T's 0°C to +70°C). | Required for medical or industrial deployments outside commercial ambient conditions. | Select MAX14802ECM+ when extended temperature qualification is mandatory; otherwise MAX14802CCM+T suffices for lab/test-bench or climate-controlled systems. |
| MAX14803CCM+ | Includes integrated 35 kΩ bleed resistors on each COM_/NO_; same LQFP-48 package and temperature range. | Suitable where capacitive load discharge is needed (e.g., post-pulse transducer settling), but adds 35 kΩ parallel path affecting high-Z receive sensitivity. | Choose MAX14802CCM+T when bleed resistors would degrade receive SNR; select MAX14803CCM+ only if active discharge is explicitly required in the application. |
Compared with MAX14802ECM+, the MAX14802CCM+T trades extended temperature support for lower cost and identical performance in commercial environments; compared with MAX14803CCM+, it removes bleed resistors to preserve off-isolation and receive-path impedance integrity - making it optimal for transmit-only or high-fidelity receive-coupled ultrasound architectures.
Availability
MAX14802CCM+T is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial piezoelectric actuator controllers, and high-voltage test instrumentation requiring stable component supply, long-term obsolescence planning, and traceable sourcing.
Supply support for MAX14802CCM+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-reliability semiconductor solutions for medical, industrial, and communications markets.
The MAX14802 series belongs to Maxim's high-voltage analog switch product line, engineered specifically for medical ultrasound probe multiplexing and industrial piezoelectric control - emphasizing low charge injection, high off-isolation, and flexible HV supply architecture.
FAQ
What is the maximum allowable VPP − VNN voltage for the MAX14802CCM+T?
The MAX14802CCM+T supports a maximum VPP − VNN differential voltage of 250 V, as confirmed in the Absolute Maximum Ratings table (Rev 5, p.2). Valid configurations include +100V/−100V, +200V/0V, and +40V/−160V. Exceeding 250 V risks permanent damage, and analog signal range is constrained to VNN ≤ VCOM_/VNO_ ≤ min(VNN + 200V, VPP − 10V).
Does the MAX14802CCM+T include bleed resistors like the MAX14803 variants?
No, the MAX14802CCM+T does not include integrated bleed resistors. Per the datasheet (p.1, p.12), bleed resistors are exclusive to MAX14803 and MAX14803A devices. This omission preserves higher off-isolation and avoids loading high-impedance receive paths - a deliberate design choice for transmit-focused ultrasound applications.
What is the operating temperature range specified for the MAX14802CCM+T?
The MAX14802CCM+T is specified for the commercial temperature range of 0°C to +70°C. However, the device is also qualified and tested across −40°C to +85°C (per ordering guide footnote and characterization data), making it suitable for extended industrial use - though formal extended-range certification applies to the MAX14802ECM+ variant.
Can the MAX14802CCM+T be daisy-chained with other MAX14802/MAX14803 devices?
Yes, the MAX14802CCM+T supports daisy-chaining via its DOUT pin, which outputs shifted data delayed by 16 clock cycles. As stated in the Applications Information section (p.15), multiple MAX14802CCM+T units can be cascaded by connecting DOUT of one to DIN of the next, sharing CLK/LE/CLR lines to enable synchronized 16-bit-per-device updates across the chain.
What package type and RoHS status does the MAX14802CCM+T use?
The MAX14802CCM+T uses a 48-pin LQFP package (7 mm × 7 mm, outline 21-0054, land pattern 90-0093) with lead(Pb)-free/RoHS-compliant construction. The "+" suffix in the part number explicitly denotes RoHS compliance per Maxim's packaging conventions (p.18).
MAX14802CCM+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)
MAX14802CCM+T FAQ
1.How can I place an order for MAX14802CCM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14802CCM+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 MAX14802CCM+T reliable?
The price and inventory of MAX14802CCM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14802CCM+T is usually 5 days.
3.What payment methods are accepted for MAX14802CCM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14802CCM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14802CCM+T?
MAX14802CCM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14802CCM+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 MAX14802CCM+T?
For technical support, including MAX14802CCM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14802CCM+T requirements.
6.How does Aetrix verify that MAX14802CCM+T is sourced from the original manufacturer or authorized distributors?
All MAX14802CCM+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 MAX14802CCM+T meets industry standards.
7.What is the process for return or replacement of MAX14802CCM+T?
All MAX14802CCM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14802CCM+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 MAX14802CCM+T part is unused and in its original packaging.
Return procedure for MAX14802CCM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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