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Analog Devices Inc./Maxim Integrated MAX19777EVSYS#
- Part No.:
- MAX19777EVSYS#
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- Datasheet:
-
MAX19777EVSYS#.pdf
- Description:
- EVAL MAX19777 12 BIT ADC
- Quantity:
- Payment:
- Shipping:
Inventory:3,495
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Product details
Overview
MAX19777EVSYS# from Maxim Integrated is a 3Msps, 12-bit, dual-channel, single-ended successive approximation ADC with SPI/QSPI/MICROWIRE-compatible 3-wire serial interface, operating from 2.2V–3.3V and consuming only 6.2mW at full speed. It features 72.5dB SNR, ±3 LSB INL (3Msps), and 8-pin wafer-level package (WLP), designed for portable data acquisition and battery-powered medical instrumentation.
For engineers reviewing the MAX19777EVSYS# datasheet, MAX19777EVSYS# pinout, MAX19777EVSYS# application, or MAX19777EVSYS# equivalent, this evaluation system enables rapid validation of high-speed, low-power analog-to-digital conversion in space-constrained embedded systems requiring -40°C to +125°C operation, minimal supply current (2.5µA/ksps), and seamless microcontroller integration via standard serial interfaces.
Technical Context
The MAX19777EVSYS# implements a SAR architecture with internal track-and-hold, supporting dual analog inputs (AIN1/AIN2) selected via CHSEL logic. Its 3-wire serial interface operates up to 48MHz SCLK, delivers MSB-first 12-bit output with leading/trailing zeros, and enters high-impedance state after 16 clock cycles.
It integrates power management with fast wake-up from power-down mode (333ns at 48MHz), 2µA shutdown current, and dynamic supply current scaling (6.2mW @ 3Msps, ~2.5µA/ksps at low rates). Input range is 0V to VDD, referenced internally - no external VREF required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit straight-binary output; LSB = VDD / 4096, enabling precise digitization of signals within 0V–VDD range. |
| Throughput Rate | 3Msps maximum; supports real-time sampling of bandwidths up to 40MHz (-3dB) without pipeline delay. |
| Dynamic Performance | 72.5dB SNR (typ, 2Msps); ensures >11.7 effective bits for high-fidelity signal capture in noisy environments. |
| Supply Voltage | 2.2V to 3.3V single supply; eliminates need for level-shifting or dual-rail supplies in modern low-voltage systems. |
| Power Consumption | 6.2mW @ 3Msps (VDD = 2.2V); scales linearly to ~2.5µA/ksps in power-down mode for ultra-low-duty-cycle sensing. |
| Analog Input Channels | Dual single-ended inputs (AIN1/AIN2); channel selection via dedicated CHSEL pin - no software overhead or register writes. |
| Operating Temperature | -40°C to +125°C; qualified for automotive under-hood, industrial control, and harsh-environment portable instrumentation. |
Pinout & Package
MAX19777EVSYS# is an evaluation system board for the MAX19777 ADC, not the bare die. The underlying IC uses an 8-pin wafer-level package (WLP), 0.857mm × 1.431mm, with 0.35mm bump pitch and RoHS-compliant lead-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1 | Analog Input Channel 1 | Single-ended input referenced to GND; voltage range = 0V to VDD; internal ESD protection diodes clamp to rails. |
| AIN2 | Analog Input Channel 2 | Second independent single-ended input; selected when CHSEL = HIGH; identical electrical specs to AIN1. |
| GND | Ground Reference | Primary analog/digital return path; requires direct connection to solid ground plane for optimal noise immunity. |
| VDD | Positive Supply | 2.2V–3.3V supply powering core, reference, and I/O; also defines analog input full-scale range (0V–VDD). |
| SCLK | Serial Clock Input | Master-controlled clock (up to 48MHz); falling edge clocks out DOUT data and controls conversion timing. |
| CS | Active-Low Chip Select | Falling edge initiates sampling and conversion; framing signal for serial data transfer; controls power-down entry/exit. |
| CHSEL | Channel Select | Static logic input (LOW = AIN1, HIGH = AIN2); must be stable between SCLK cycles 2–12 for reliable channel switching. |
| DOUT | Three-State Serial Output | MSB-first 12-bit result preceded by '0' and followed by two trailing '0's; high-impedance after 16th SCLK falling edge. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True SAR architecture delivers first valid conversion result within one CS cycle - critical for deterministic real-time control loops. |
| Integrated power-down mode | 2µA shutdown current with sub-333ns wake-up time enables aggressive duty-cycling in battery-powered sensor nodes. |
| SPI/QSPI/MICROWIRE compatibility | Direct interface to common MCU peripherals without glue logic - reduces BOM count and layout complexity. |
| Internal VDD-referenced conversion | No external reference required; simplifies design, lowers cost, and improves stability over temperature and supply variation. |
| Small WLP footprint | 0.857mm × 1.431mm package enables placement in ultra-compact wearable and implantable medical devices. |
Applications
| Portable Data Logging | Medical Instrumentation |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature, pressure, and humidity at 1–10ksps intervals. IC Role / Device Role / Timing Role: Primary ADC capturing conditioned analog sensor outputs with minimal power overhead and guaranteed timing determinism. Use Value: 6.2mW at 3Msps and 2.5µA/ksps scaling extend battery life to multi-year operation while maintaining 12-bit fidelity across -40°C to +125°C. |
Use Scenario: Handheld ECG or pulse oximeter acquiring biopotential signals with high SNR and low THD. IC Role / Device Role / Timing Role: High-dynamic-range front-end digitizer handling low-amplitude, high-frequency physiological waveforms. Use Value: 72.5dB SNR and -83dB THD ensure accurate waveform morphology capture, critical for clinical-grade diagnostics. |
| Battery-Operated Systems | Automotive Systems |
Use Scenario: Wireless condition-monitoring module on rotating machinery using piezoelectric vibration sensors. IC Role / Device Role / Timing Role: Low-power, high-throughput ADC interfacing with MEMS accelerometers and transmitting data via BLE. Use Value: Dual-channel capability allows simultaneous acquisition of orthogonal axes; WLP package fits tight mechanical envelopes. |
Use Scenario: Engine control unit (ECU) subsystem monitoring rail voltages, coolant temperature, and throttle position. IC Role / Device Role / Timing Role: Ruggedized ADC performing periodic diagnostic sampling in high-EMI, wide-temperature automotive environments. Use Value: -40°C to +125°C rating and 872mW thermal derating ensure reliability under hood; 2µA power-down current minimizes quiescent drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit, serial-interface ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit, 1MSPS, 8-channel SAR ADC; 3.3V supply only; parallel + SPI interface; larger 32-pin QFN package. | Higher channel count but lower speed; suited for multiplexed multi-sensor systems rather than dual-channel high-speed streaming. | Select ADS7953IRHBT when needing >2 analog inputs and SPI+parallel flexibility; avoid if space or 3Msps throughput is critical. |
| AD7476AARMZ | 12-bit, 1MSPS, single-channel SAR ADC; 2.35–5.25V supply; SPI-only; 6-pin SOT-23 package; 70dB SNR (typ). | Lower speed, single input, slightly higher noise; smaller footprint but no CHSEL-based dual-input convenience. | Select AD7476AARMZ for ultra-small size and single-channel use cases where 1MSPS suffices and CHSEL simplification is unnecessary. |
Compared with ADS7953IRHBT and AD7476AARMZ, MAX19777EVSYS# uniquely balances 3Msps throughput, dual-channel simplicity, ultra-low power scaling, and sub-1mm² WLP packaging - making it optimal for compact, battery-sensitive, high-sample-rate embedded data acquisition.
Availability
MAX19777EVSYS# is available at Aetrix Electronics and suitable for portable data logging, medical instrumentation, battery-operated systems, automotive diagnostics, and industrial sensor interface applications requiring stable component supply and rapid evaluation turnaround.
Supply support for MAX19777EVSYS# 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 power-management ICs for demanding industrial, automotive, medical, and communications applications.
The MAX19777 product line targets ultra-low-power, high-speed data acquisition in space-constrained portable and embedded systems - emphasizing minimal supply current, small WLP packaging, and seamless microcontroller integration.
FAQ
What is the primary function of the MAX19777EVSYS# evaluation system?
The MAX19777EVSYS# is a fully assembled and tested evaluation platform for the MAX19777 12-bit, 3Msps SAR ADC. It provides immediate access to all device pins, onboard voltage regulation, configurable jumpers for CHSEL and power modes, and a standard 20-pin header for connection to host controllers - enabling rapid characterization of conversion performance, timing behavior, and power management features of the MAX19777 without custom PCB development.
Does the MAX19777EVSYS# require an external voltage reference?
No, the MAX19777EVSYS# does not require an external voltage reference. The underlying MAX19777 ADC uses an internal reference tied directly to VDD, meaning its full-scale input range is always 0V to VDD. This eliminates the need for external reference components, simplifies layout, and improves supply rejection - a key advantage confirmed in the device's Electrical Characteristics table and Functional Description section.
How does the MAX19777EVSYS# support dual-channel operation?
The MAX19777EVSYS# supports dual-channel operation through the CHSEL pin on the MAX19777 IC: when CHSEL is driven LOW, AIN1 is selected; when HIGH, AIN2 is selected. The evaluation board exposes CHSEL to a jumper or logic-level control, allowing users to switch channels dynamically during operation - verified in the Pin Function table and Dual-Channel Operation section of the datasheet, with timing constraints specified for reliable switching between SCLK cycles 2–12.
What is the power-down current specification for the MAX19777EVSYS#?
The MAX19777EVSYS# achieves a typical power-down current of 2µA, as measured on the MAX19777 IC itself (not the board's auxiliary circuitry). This value is guaranteed across temperature and documented in the Electrical Characteristics table under "Power-Down Current (IPD)". The evaluation system preserves this ultra-low state when CS is held HIGH between conversions, enabling energy-efficient operation in intermittent-sampling applications like wireless sensor nodes.
Can the MAX19777EVSYS# interface directly with an Arduino or Raspberry Pi?
Yes, the MAX19777EVSYS# can interface directly with Arduino and Raspberry Pi via its 3-wire SPI-compatible serial interface (SCLK, CS, DOUT). The board's logic levels (2.2V–3.3V) align with 3.3V GPIO standards, and no level-shifting is needed. Example firmware is available from Maxim (now Analog Devices) demonstrating register-less communication - leveraging the device's native SPI/QSPI/MICROWIRE compatibility confirmed in the Benefits and Features list and Serial Interface section.
MAX19777EVSYS# Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Number of A/D Converters:
- 1
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 3M
- Data Interface:
- Serial, SPI
- Input Range:
- 0 ~ Vdd
- Power (Typ) @ Conditions:
- 8.4mW @ 3MSPS
- Utilized IC / Part:
- MAX19777
- Contents:
- Board(s)
MAX19777EVSYS# FAQ
1.How can I place an order for MAX19777EVSYS# through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX19777EVSYS# 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 MAX19777EVSYS# reliable?
The price and inventory of MAX19777EVSYS# are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX19777EVSYS# is usually 5 days.
3.What payment methods are accepted for MAX19777EVSYS#?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX19777EVSYS# transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX19777EVSYS#?
MAX19777EVSYS# orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX19777EVSYS# 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 MAX19777EVSYS#?
For technical support, including MAX19777EVSYS# datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX19777EVSYS# requirements.
6.How does Aetrix verify that MAX19777EVSYS# is sourced from the original manufacturer or authorized distributors?
All MAX19777EVSYS# 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 MAX19777EVSYS# meets industry standards.
7.What is the process for return or replacement of MAX19777EVSYS#?
All MAX19777EVSYS# units undergo pre-shipment inspection (PSI). If there is an issue with MAX19777EVSYS#, 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 MAX19777EVSYS# part is unused and in its original packaging.
Return procedure for MAX19777EVSYS#:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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