My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1416AEWE+
- Part No.:
- MAX1416AEWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX1416AEWE+.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,291
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX1416AEWE+ from Maxim Integrated is a 16-bit, low-power, 2-channel sigma-delta analog-to-digital converter (ADC) with fully differential inputs, integrated PGA (gain 1–128), on-chip input buffer, and internal oscillator (1MHz or 2.4576MHz). It delivers ±0.0015% INL (max), no missing codes, and >98dB 50Hz/60Hz rejection - optimized for high-accuracy industrial sensing in loop-powered systems and weigh scales.
For engineers reviewing the MAX1416AEWE+ datasheet, MAX1416AEWE+ pinout, MAX1416AEWE+ application, or MAX1416AEWE+ equivalent, this device supports SPI/QSPI/MICROWIRE serial interface, operates from 4.75V to 5.25V, features on-demand offset/gain self-calibration, and targets precision DC measurement where low power (1.2mW max), high CMR (up to 130dB), and built-in 50/60Hz notch filtering are critical.
Technical Context
The MAX1416AEWE+ implements a second-order sigma-delta modulator with digital filter, achieving 16-bit resolution without missing codes. Its architecture includes a programmable gain amplifier (PGA), optional input buffering, and dual fully differential analog input channels (AIN1±, AIN2±) with independent channel selection via S1/S2 control logic.
It supports both internal clock generation (1MHz or 2.4576MHz, selectable via CLK pin) and external clock input (400kHz–2.5MHz), with configurable output data rates down to 20Hz. The device uses a dedicated DRDY signal for conversion-ready indication and integrates system-level calibration registers for user-programmable offset and gain correction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage for precision DC measurements. |
| INL (max) | ±0.0015% FSR at gain = 1, bipolar unbuffered mode - enables sub-100ppm linearity-critical applications like strain-gauge bridges. |
| Supply Voltage | 4.75V to 5.25V - compatible with standard 5V industrial rails and isolated loop-powered sensor interfaces. |
| Power Dissipation | 1.2mW max at 3V (not applicable); actual typical IDD = 0.95mA buffered / 0.6mA unbuffered at 5V, 2.4576MHz - enables battery-backed or energy-constrained designs. |
| 50/60Hz Rejection | >98dB normal-mode, >150dB common-mode - eliminates mains interference without external notch filters in flow meters and pressure transducers. |
| Input Buffering | Optional on-chip buffer - improves input impedance (>1GΩ) and reduces source loading for high-Z sensors like RTDs and thermocouples. |
| PGA Gain Range | 1 to 128 - allows direct digitization of µV-level signals from load cells and bridge sensors without external amplification. |
Pinout & Package
MAX1416AEWE+ is housed in a 16-pin TSSOP package (4.4mm × 5mm, 0.65mm pitch), specified for -40°C to +85°C operation and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply rail | 4.75V–5.25V main power input; decoupling required near pin for noise-sensitive sigma-delta operation. |
| GND | Analog/digital ground reference | Single ground plane recommended; separates analog and digital return paths only if layout constraints demand separation. |
| AIN1+, AIN1− | Differential analog input channel 1 | High-impedance, fully differential inputs supporting unipolar/bipolar ranges up to ±VREF/GAIN. |
| AIN2+, AIN2− | Differential analog input channel 2 | Independent second channel with identical specs; selected via S1/S2 control pins in unbuffered mode. |
| REF+, REF− | Differential reference voltage inputs | Accepts 1.0V–3.5V external reference; sets full-scale range and directly impacts measurement accuracy and noise floor. |
| SCLK | Serial clock input | Drives SPI-compatible interface; timing-critical for DOUT setup/hold and DRDY synchronization. |
| DIN | Serial data input | Loads configuration registers (CLK, CLKDIV, BUF, etc.) and initiates calibration commands. |
| DOUT | Serial data output | Three-state output delivering conversion results and status bits; requires CS control for bus sharing. |
| CS | Chip select | Active-low enable for serial interface; must be asserted before SCLK edge to avoid spurious reads/writes. |
| DRDY | Data ready indicator | Open-drain output pulses low when conversion completes; used for interrupt-driven or polled readout. |
| RESET | Hardware reset input | Asynchronous active-low reset; clears internal registers and forces reinitialization of calibration state. |
| CLKIN | External clock input | Accepts 400kHz–2.5MHz square wave; overrides internal oscillator when present and CLK = 0. |
| CLKOUT | Internal clock output | Provides buffered internal oscillator output (1MHz or 2.4576MHz) for synchronizing external circuitry. |
| S1, S2 | Channel select inputs | Control multiplexer for AIN1/AIN2 selection in unbuffered mode; open in buffered mode (internal routing). |
Key Features
| Feature | Design Value |
|---|---|
| On-demand self-calibration | Offset and gain calibration executed in-system via register command - eliminates factory calibration drift over temperature and time. |
| Programmable gain amplifier (PGA) | Gain 1–128 with matched input stages - enables single-device support for multiple sensor types (e.g., mV/V load cells and µV thermocouples). |
| Integrated 50Hz/60Hz notch filtering | Digital filter notches at 20Hz/25Hz/50Hz/60Hz - removes mains interference without external analog filters or DSP overhead. |
| Low power-down current | 16µA typical at 5V - extends battery life in portable instrumentation and enables fast wake-up (<1ms startup) from sleep states. |
| SPI/QSPI/MICROWIRE compatibility | Standard 3-wire serial interface with CS, SCLK, DIN/DOUT - simplifies integration with ARM Cortex-M, PIC, and FPGA host controllers. |
Applications
| Industrial Weigh Scales | Strain-Gauge Measurements |
|---|---|
|
Use Scenario: High-precision weight measurement in platform scales and hopper load cells using full-bridge strain gauges with mV-level outputs. IC Role / Device Role / Timing Role: Primary ADC digitizing differential bridge voltage; provides PGA gain, internal reference scaling, and 50/60Hz rejection for factory-floor environments. Use Value: Achieves <100ppm linearity (±0.0015% INL) and <1.3µV RMS noise at GAIN=128, enabling 1:100,000 resolution without external amplification. |
Use Scenario: Static and quasi-static force measurement in structural health monitoring and material testing rigs. IC Role / Device Role / Timing Role: Dual-channel sigma-delta ADC acquiring synchronized strain readings from multiple gauge locations; supports on-demand calibration for long-term stability. Use Value: Fully differential inputs reject common-mode noise from cable runs; >130dB CMR at GAIN=128 ensures accuracy despite ground shifts in distributed sensor arrays. |
| Loop-Powered Systems | Pressure Transducers |
|
Use Scenario: 4–20mA smart transmitter design where power budget is limited to ≤4mA at 24V, requiring ultra-low quiescent current. IC Role / Device Role / Timing Role: Low-power ADC core with 1.2mW typical dissipation and 16µA power-down mode - enables microcontroller co-location and local signal conditioning. Use Value: Internal oscillator eliminates external crystal, reducing BOM count; buffered inputs minimize sensor loading on high-impedance Wheatstone bridges. |
Use Scenario: Industrial pressure sensing in HVAC, process control, and hydraulic systems using piezoresistive or capacitive transducers. IC Role / Device Role / Timing Role: Precision front-end ADC with programmable gain and self-calibration - compensates for transducer offset drift and thermal zero-shift. Use Value: Offset drift <0.5µV/°C and full-scale drift <0.5µV/°C ensure <0.1%FS error over –40°C to +85°C without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7705BRUZ | 16-bit, 2-channel sigma-delta ADC; 2.7–5.25V supply; no internal oscillator; requires external clock; INL ±0.003% FSR (worse than MAX1416AEWE+). | Legacy pin-compatible upgrade path; lacks integrated oscillator and buffered inputs - needs external crystal and op-amp buffering for high-Z sources. | Select AD7705BRUZ only if legacy board reuse is mandatory and external clock infrastructure already exists. |
| ADS1220IPWR | 24-bit, 2-channel delta-sigma ADC; 2.7–5.5V supply; integrated PGA (1–128), VREF, and 50/60Hz rejection; INL ±0.0005% FSR; higher resolution but higher power (~1mW active). | Higher-resolution alternative for next-gen designs requiring >16-bit dynamic range; supports same sensor types but adds burn-out detection and SPI CRC. | Choose ADS1220IPWR when 24-bit resolution and enhanced diagnostics justify slightly higher cost and layout changes. |
Compared with AD7705BRUZ, MAX1416AEWE+ offers superior INL, integrated clock, and input buffering - reducing component count and improving noise immunity. Against ADS1220IPWR, it trades resolution for lower cost and proven field reliability in established industrial platforms.
Availability
MAX1416AEWE+ is available at Aetrix Electronics and suitable for industrial instruments, weigh scales, strain-gauge measurements, and loop-powered systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX1416AEWE+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX1415/MAX1416 product line was designed specifically for high-accuracy, low-power DC measurement in harsh industrial environments - emphasizing noise immunity, self-calibration, and seamless replacement of legacy AD7705/MX7705 devices.
FAQ
What is the operating supply voltage range for the MAX1416AEWE+?
The MAX1416AEWE+ operates from 4.75V to 5.25V. This 5V-compatible range ensures robust performance in industrial control systems and loop-powered transmitters where regulated 5V rails are standard. Operation outside this range may cause functional failure or parametric degradation, and absolute maximum ratings specify VDD to GND stress limits of –0.3V to +6V.
Does the MAX1416AEWE+ include an internal oscillator?
Yes, the MAX1416AEWE+ integrates an internal oscillator configurable for either 1MHz or 2.4576MHz output, selected via the CLK pin. This eliminates the need for an external crystal or clock source in most applications, reducing BOM cost and PCB area. When CLKIN is driven externally, the internal oscillator is disabled automatically.
How does the MAX1416AEWE+ handle 50Hz and 60Hz interference?
The MAX1416AEWE+ achieves >98dB normal-mode and >150dB common-mode rejection at 50Hz and 60Hz through its digital filter architecture, which includes programmable notch frequencies at 20Hz, 25Hz, 50Hz, and 60Hz. This is implemented entirely in silicon - no external components or firmware processing are required to suppress mains-frequency noise.
What is the purpose of the S1 and S2 pins on the MAX1416AEWE+?
The S1 and S2 pins control analog input channel selection in unbuffered mode: they configure the internal multiplexer to route AIN1± or AIN2± to the sigma-delta modulator. In buffered mode, S1 and S2 are internally disconnected (open), and channel selection is handled by register writes via the serial interface - simplifying layout and reducing external control logic.
Can the MAX1416AEWE+ perform self-calibration without external components?
Yes, the MAX1416AEWE+ supports on-demand offset and gain self-calibration using only its internal circuitry - no external zero-scale or full-scale references are needed. Calibration is initiated via register commands (CAL_OFFSET, CAL_GAIN), and results are stored in dedicated calibration registers, enabling field recalibration during maintenance or temperature excursions.
MAX1416AEWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1416AEWE+ FAQ
1.How can I place an order for MAX1416AEWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1416AEWE+ 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 MAX1416AEWE+ reliable?
The price and inventory of MAX1416AEWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1416AEWE+ is usually 5 days.
3.What payment methods are accepted for MAX1416AEWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1416AEWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1416AEWE+?
MAX1416AEWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1416AEWE+ 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 MAX1416AEWE+?
For technical support, including MAX1416AEWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1416AEWE+ requirements.
6.How does Aetrix verify that MAX1416AEWE+ is sourced from the original manufacturer or authorized distributors?
All MAX1416AEWE+ 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 MAX1416AEWE+ meets industry standards.
7.What is the process for return or replacement of MAX1416AEWE+?
All MAX1416AEWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1416AEWE+, 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 MAX1416AEWE+ part is unused and in its original packaging.
Return procedure for MAX1416AEWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1416AEWE+ Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
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…
