My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX14802ECM+
- Part No.:
- MAX14802ECM+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 48-LQFP
- Datasheet:
-
MAX14802ECM+.pdf
- Description:
- IC SW SPST-NOX16 48OHM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:249
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX14802ECM+ 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 (350–820 pC), 16-bit serial-controlled switching, ±100V/0V to +200V high-voltage operation (VPP/VNN = +100V/−100V or +200V/0V), and −77 dB off-isolation at 5 MHz with 50 Ω load - enabling precise high-fidelity transmit pulse selection in medical transducer arrays.
For engineers reviewing the MAX14802ECM+ datasheet, MAX14802ECM+ pinout, MAX14802ECM+ application, or MAX14802ECM+ equivalent, key selection criteria include extended temperature support (−40°C to +85°C), absence of integrated bleed resistors (distinguishing it from MAX14803A), 48-pin LQFP package compatibility, and HVCMOS-based low-capacitance switching for DC-to-20 MHz analog signals.
Technical Context
The MAX14802ECM+ implements a 16-bit serial shift register with transparent latch, controlled via DIN/CLK/LE/CLR digital interface operating from a separate +2.7V to +5.5V VDD supply. Its HVCMOS process enables robust 16-channel SPST switching with clamping diodes on COM_ terminals for positive overshoot protection.
It supports flexible high-voltage supplies up to VPP − VNN = 230 V (per Absolute Maximum Ratings), with analog signal range bounded by VNN ≤ VCOM_/VNO_ ≤ min(VNN + 200 V, VPP − 10 V). Power-on reset ensures all switches default to open state at startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VPP/VNN Supply Range | +100V/−100V, +200V/0V, or +40V/−160V - enables dual-rail or single-rail high-voltage biasing for piezoelectric transducer drive |
| On-Resistance (RONS) | 18–48 Ω (typ) - low conduction loss across full analog voltage range, critical for minimizing transmit pulse distortion |
| Off-Isolation | −77 dB at 5 MHz (RL = 50 Ω) - suppresses crosstalk between active and inactive channels in dense array layouts |
| Charge Injection | 350–820 pC (depending on VPP/VNN) - minimized transient voltage kick during switching, preserving signal integrity in sensitive receive paths |
| Small-Signal Bandwidth | 20 MHz - supports fast ultrasonic pulse transmission without high-frequency roll-off |
| Logic Supply Voltage (VDD) | +2.7V to +5.5V - compatible with standard 3.3V or 5V microcontroller I/O without level-shifting |
| Operating Temperature | −40°C to +85°C - qualified for extended industrial and medical equipment environments |
Pinout & Package
MAX14802ECM+ is housed in a 48-pin LQFP (7 mm × 7 mm) package with exposed thermal pad. Pin assignments follow standard Maxim 48-pin LQFP layout for MAX14802/MAX14803 series.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 14, 16, 24, 35, 36 | N.C. | No internal connection - unused pins; must be left floating or tied to GND per layout guidelines |
| 3, 6, 8–12, 25–48 (except N.C.) | COMn/NOn | 16 independent analog switch terminals (8 COM + 8 NO pairs) - routed to external transducers or print head drivers |
| 13 | VNN | Negative high-voltage supply rail - requires ≥0.1 µF ceramic bypass to GND for stability under dynamic load |
| 15 | VPP | Positive high-voltage supply rail - supports up to +200V in single-supply mode; bypass essential |
| 17 | GND | Analog/digital ground reference - shared return for VDD, VPP, VNN, and switch loads |
| 18 | VDD | Digital logic supply - powers shift register, latch, and interface; independent of high-voltage rails |
| 19–23 | DIN, CLK, LE, CLR, DOUT | Serial control interface - enables daisy-chaining of multiple devices with synchronous latch update |
Key Features
| Feature | Design Value |
|---|---|
| Integrated clamping diodes on COM_ terminals | Protects against +VPP overshoot during fast switching - eliminates need for external TVS in most probe-level designs |
| Power-on reset circuitry | Guarantees all 16 switches start in OFF (open) state - prevents unintended high-voltage discharge at system power-up |
| Daisy-chainable 16-bit serial interface | Reduces MCU GPIO count and simplifies PCB routing when controlling multiple MAX14802ECM+ devices in parallel |
| Low quiescent current (5 µA typ) | Minimizes standby power in battery-backed or energy-sensitive medical systems |
| DC-to-20 MHz analog signal path | Preserves fidelity of short-duration ultrasonic pulses without phase or amplitude distortion |
Applications
| Ultrasound Probe Multiplexing | Industrial Piezoelectric Print Head Control |
|---|---|
Use Scenario: Selecting one of 16 transducer elements per transmit cycle in a linear or phased-array ultrasound probe. IC Role / Device Role / Timing Role: High-voltage SPST switch managing ±100V transmit pulses with sub-µs timing precision and minimal charge injection. Use Value: Enables compact, low-noise probe design with 16:1 element multiplexing while maintaining pulse shape integrity and channel isolation >77 dB. |
Use Scenario: Driving individual piezoelectric print nozzles in high-resolution industrial inkjet systems requiring precise voltage sequencing. IC Role / Device Role / Timing Role: Analog switch routing +100V/−100V drive waveforms to nozzle electrodes under microcontroller serial control. Use Value: Delivers consistent on-resistance (<30 Ω) and low leakage (<2 µA) across temperature, ensuring repeatable drop formation and print quality. |
| Medical Imaging System Mainframe Switching | High-Voltage Test Equipment Signal Routing |
Use Scenario: Isolating and routing high-voltage transmit paths between multiple probe interfaces within an ultrasound mainframe chassis. IC Role / Device Role / Timing Role: Channel-select switch supporting probe hot-swap and multi-probe configuration with overvoltage clamping. Use Value: Provides safe, reliable switching between probes using integrated COM_-side clamping - reduces external protection component count by 50%. |
Use Scenario: Automated test fixture routing of ±100V calibration signals to DUT inputs during production testing of high-voltage sensors or amplifiers. IC Role / Device Role / Timing Role: Precision analog switch with known RONS, COFF, and isolation specs used as programmable signal path selector. Use Value: Guarantees traceable, stable switching performance (±5% RONS matching, <11 pF COFF) for metrology-grade test repeatability. |
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 |
|---|---|---|---|
| MAX14803AEWZ+ | Includes integrated 35 kΩ bleed resistors on each switch terminal; uses 110-bump WLP package; same −40°C to +85°C rating | Required where capacitive load discharge (e.g., piezo transducer settling) is critical; WLP limits board-level repairability | Select MAX14803AEWZ+ only if bleed resistors are needed and WLP footprint is acceptable; MAX14802ECM+ avoids resistor-induced signal loading. |
| MAX14802CCM+ | Same 48-pin LQFP package and core functionality, but rated only for 0°C to +70°C commercial temperature range | Suitable for non-extended-temperature medical peripherals or lab equipment with controlled ambient | Choose MAX14802CCM+ for cost-sensitive, room-temperature applications; MAX14802ECM+ adds industrial-grade thermal margin without functional trade-offs. |
Compared with MAX14803AEWZ+, MAX14802ECM+ offers identical switching performance and extended temperature range but omits bleed resistors - reducing parasitic loading on sensitive analog nodes. Against MAX14802CCM+, it provides identical functionality with broader thermal qualification, making it the preferred choice for field-deployed ultrasound or industrial systems.
Availability
MAX14802ECM+ is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial piezoelectric printers, and high-voltage test equipment requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for MAX14802ECM+ 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 MAX14802ECM+ belongs to Maxim's high-voltage analog switch product line, engineered specifically for medical ultrasound probe multiplexing and industrial piezoelectric actuation - emphasizing low charge injection, high off-isolation, and robust overvoltage protection.
FAQ
What is the maximum allowable VPP − VNN voltage difference for MAX14802ECM+?
The MAX14802ECM+ supports a maximum VPP − VNN difference of 230 V, as specified in its Absolute Maximum Ratings table. This allows configurations such as +100V/−100V (200 V), +200V/0V (200 V), or +40V/−160V (200 V), with headroom up to 230 V for transient margins. Exceeding this risks permanent device damage.
Does MAX14802ECM+ include integrated bleed resistors like the MAX14803A series?
No, MAX14802ECM+ does not include integrated bleed resistors. The datasheet explicitly states that bleed resistors are provided only on MAX14803 and MAX14803A variants. This makes MAX14802ECM+ preferable in applications where resistor loading would degrade signal fidelity - such as high-frequency ultrasound transmit paths.
What is the guaranteed operating temperature range for MAX14802ECM+?
The MAX14802ECM+ is specified for an extended temperature range of −40°C to +85°C. This is confirmed in both the Ordering Information table and the Absolute Maximum Ratings section, distinguishing it from the commercial-grade MAX14802CCM+ (0°C to +70°C).
Can MAX14802ECM+ be daisy-chained with other MAX14802/MAX14803 devices?
Yes, MAX14802ECM+ supports daisy-chaining via its DOUT pin, which outputs shifted data delayed by 16 clock cycles. Multiple devices can be connected DIN→DOUT in series, sharing CLK, LE, and CLR lines to enable synchronized 16-bit-per-device control with minimal MCU GPIO usage.
What package type and RoHS status does MAX14802ECM+ use?
MAX14802ECM+ uses a 48-pin LQFP package (7 mm × 7 mm) with exposed thermal pad, and the "+" suffix confirms it is RoHS-compliant and lead-free. Package outline number is 21-0054, and land pattern number is 90-0093 per Maxim's package documentation.
MAX14802ECM+ 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+):
- 2.7V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LQFP (7x7)
MAX14802ECM+ FAQ
1.How can I place an order for MAX14802ECM+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14802ECM+ 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 MAX14802ECM+ reliable?
The price and inventory of MAX14802ECM+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14802ECM+ is usually 5 days.
3.What payment methods are accepted for MAX14802ECM+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14802ECM+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14802ECM+?
MAX14802ECM+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14802ECM+ 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 MAX14802ECM+?
For technical support, including MAX14802ECM+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14802ECM+ requirements.
6.How does Aetrix verify that MAX14802ECM+ is sourced from the original manufacturer or authorized distributors?
All MAX14802ECM+ 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 MAX14802ECM+ meets industry standards.
7.What is the process for return or replacement of MAX14802ECM+?
All MAX14802ECM+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14802ECM+, 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 MAX14802ECM+ part is unused and in its original packaging.
Return procedure for MAX14802ECM+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14802ECM+ Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
