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Analog Devices Inc./Maxim Integrated MAX1416EPE+
- Part No.:
- MAX1416EPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX1416EPE+.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:275
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Product details
Overview
MAX1416EPE+ 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 SPI/QSPI/MICROWIRE-compatible serial interface. It operates from a 4.75V to 5.25V supply, achieves ±0.0015% INL (max) with no missing codes, and delivers >98dB 50Hz/60Hz rejection-optimized for high-accuracy industrial sensor conditioning in weigh scales and strain-gauge systems.
For engineers reviewing the MAX1416EPE+ datasheet, MAX1416EPE+ pinout, MAX1416EPE+ application, or MAX1416EPE+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The MAX1416EPE+ employs a second-order sigma-delta modulator with digital filtering to achieve true 16-bit resolution and no missing codes. Its internal oscillator supports 1MHz or 2.4576MHz operation, and it features user-programmable offset/gain registers plus on-demand self-calibration for both offset and gain.
It supports buffered and unbuffered analog input modes via S1/S2 control, offers programmable gain amplifier (PGA) with 1–128 gain range, and provides >130dB common-mode rejection at high gains-enabling precise measurement of low-level signals in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes-guarantees monotonicity and full code coverage for precision metrology. |
| INL (max) | ±0.0015% FSR at gain = 1, bipolar unbuffered mode-enables sub-10ppm linearity-critical calibration. |
| Supply Voltage | 4.75V to 5.25V-designed for stable 5V industrial rails; incompatible with 3V-only systems. |
| Power Dissipation | 1.2mW max at 3V (not applicable); at 5V, typical IDD = 1.1mA buffered / 2.4576MHz / gain=128-supports low-power loop-powered designs. |
| 50/60Hz Rejection | >98dB normal-mode, >150dB common-mode-eliminates mains interference without external notch filters. |
| PGA Gain Range | 1 to 128-configurable signal amplification before digitization, reducing need for external op-amps. |
| Operating Temp | −40°C to +85°C-qualified for industrial temperature range, including factory-floor and outdoor instrumentation. |
Pinout & Package
MAX1416EPE+ is housed in a 16-pin PDIP package (0.3-inch width), suitable for through-hole prototyping and legacy industrial PCBs. Pin spacing is 0.1 inch; lead finish is lead-free (Pb-free) per RoHS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SCLK | Serial clock input | Accepts external SPI-compatible clock up to 2.5MHz; synchronizes all serial data transfers. |
| 2 DIN | Serial data input | Loads configuration registers (gain, buffer mode, clock source) during write cycles. |
| 3 DOUT | Serial data output | Three-state output delivering conversion results and status bits; requires CS control. |
| 4 CS | Chip select | Active-low enables serial interface; must be held low during entire read/write transaction. |
| 5 DRDY | Data ready indicator | Open-drain output pulses low when conversion completes-directly interfaces with µC interrupt lines. |
| 6 RESET | Hardware reset | Asynchronous active-low reset clears internal registers and restarts calibration sequence. |
| 7 REF+ | Reference voltage positive | Accepts 1.0V to 3.5V differential reference; sets full-scale input range with PGA gain scaling. |
| 8 REF− | Reference voltage negative | Reference return path; must be tied to system ground or isolated reference plane. |
| 9 AIN1+ | Analog input channel 1 positive | Differential input terminal; supports buffered/unbuffered modes depending on S1/S2 state. |
| 10 AIN1− | Analog input channel 1 negative | Complementary terminal for CH1; common-mode voltage must stay within GND+50mV to VDD−1.5V (buffered). |
| 11 AIN2+ | Analog input channel 2 positive | Second fully differential input pair; shares same PGA and filter architecture as AIN1. |
| 12 AIN2− | Analog input channel 2 negative | Complementary terminal for CH2; identical electrical specs and routing constraints as AIN1−. |
| 13 CLKIN | External clock input | Accepts 400kHz–2.5MHz CMOS-level clock; disables internal oscillator when driven. |
| 14 CLKOUT | Internal clock output | Drives external crystal/resonator in oscillator mode; outputs 1MHz or 2.4576MHz signal. |
| 15 VDD | Positive supply | 4.75V–5.25V only; bypassing with 0.1µF ceramic capacitor to GND is mandatory for noise immunity. |
| 16 GND | Ground | Analog/digital common reference; requires star grounding near ADC for optimal PSRR performance. |
Key Features
| Feature | Design Value |
|---|---|
| On-demand self-calibration | Offset and gain calibration initiated by register write-enables field recalibration without external equipment. |
| Programmable gain amplifier (PGA) | 1× to 128× gain selectable in powers of two-matches sensor output range to ADC's 16-bit dynamic range. |
| Integrated input buffer | Reduces source impedance sensitivity and improves CMR >130dB at high gains-critical for high-Z sensors like RTDs. |
| 50Hz/60Hz notch filtering | Digital filter notches at 25Hz/50Hz or 20Hz/60Hz-rejects mains interference without analog filter components. |
| SPI/QSPI/MICROWIRE compatibility | Standard 3-wire serial interface with CS, SCLK, DIN/DOUT-simplifies firmware integration across microcontroller platforms. |
Applications
| Weigh Scales | Strain-Gauge Measurements |
|---|---|
|
Use Scenario: High-resolution weight measurement in platform scales and hopper load cells using mV/V bridge outputs. IC Role / Device Role / Timing Role: Precision 16-bit digitization of low-level differential bridge signals with integrated PGA and 50/60Hz rejection. Use Value: Eliminates external instrumentation amplifiers and analog notch filters-reducing BOM count and layout area while maintaining ±0.0015% INL accuracy. |
Use Scenario: Static and quasi-static strain monitoring in structural health systems and test benches. IC Role / Device Role / Timing Role: Low-drift, low-noise ADC with programmable gain and self-calibration for microstrain-level resolution. Use Value: Achieves <1.3µV RMS noise (gain=128, ODR=60Hz) enabling detection of sub-10ppm strain changes without external averaging. |
| Pressure Transducers | RTD Measurements |
|
Use Scenario: Industrial pressure sensing using 4–20mA or ratiometric voltage-output transducers. IC Role / Device Role / Timing Role: Digitizes conditioned analog outputs with high PSRR (>120dB at 50Hz) and wide common-mode range. Use Value: Maintains accuracy despite supply rail fluctuations and EMI in pump/control cabinet environments-no additional power-supply filtering required. |
Use Scenario: Precision 3-wire or 4-wire RTD temperature sensing in HVAC and process control systems. IC Role / Device Role / Timing Role: Low-leakage (<1nA) analog inputs and buffered mode support accurate current-source excitation and Kelvin sensing. Use Value: Enables direct ratiometric RTD measurement with <0.5µV/°C offset drift-supporting Class A PT100 accuracy over −40°C to +85°C. |
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 |
|---|---|---|---|
| AD7705BNZ | 16-bit, 2-channel sigma-delta ADC; 2.7–5.25V supply; no internal oscillator; requires external clock; INL = ±0.003% FSR. | Lacks integrated oscillator and PGA-requires external crystal and gain stage; better suited for cost-sensitive, lower-accuracy systems. | Select AD7705BNZ when board space allows external clock generation and gain circuitry, and ±0.003% INL meets system requirements. |
| ADS1220IPWR | 24-bit, 2-channel delta-sigma ADC; 2.7–5.5V supply; integrated PGA (1–128), reference, and burn-out current sources; INL = ±0.0005% FSR. | Higher resolution and integrated excitation current sources-ideal for 3-/4-wire RTD and thermocouple systems requiring >16-bit precision. | Select ADS1220IPWR when upgrading to 24-bit resolution is needed, or when integrated sensor excitation and diagnostics are required. |
Compared with AD7705BNZ, MAX1416EPE+ offers superior INL (±0.0015% vs. ±0.003%) and built-in clocking, simplifying design; versus ADS1220IPWR, it trades resolution for lower cost and proven stability in established 16-bit industrial deployments.
Availability
MAX1416EPE+ 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 long production lifecycles.
Supply support for MAX1416EPE+ 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 sensor signal conditioning in industrial instrumentation-emphasizing DC precision, noise immunity, and ease of calibration.
FAQ
What is the operating supply voltage range for the MAX1416EPE+?
The MAX1416EPE+ operates exclusively from a 4.75V to 5.25V single supply. It is not rated for 3V operation-unlike the MAX1415 variant-and must be powered from a regulated 5V rail. Supply voltage outside this range may cause functional failure or parametric degradation.
Does the MAX1416EPE+ include an internal oscillator?
Yes, the MAX1416EPE+ integrates an internal oscillator configurable for either 1MHz or 2.4576MHz operation via the CLK pin. This eliminates the need for external clock components in most applications, though an external clock (400kHz–2.5MHz) can be applied to CLKIN if preferred.
How does the MAX1416EPE+ handle 50Hz and 60Hz interference?
The MAX1416EPE+ uses a digital filter with programmable notches at 25Hz/50Hz or 20Hz/60Hz to deliver >98dB normal-mode and >150dB common-mode rejection-effectively suppressing mains-frequency noise without external analog filters or synchronous sampling techniques.
Can the MAX1416EPE+ interface directly with a microcontroller SPI port?
Yes, the MAX1416EPE+ supports standard SPI, QSPI, and MICROWIRE protocols using CS, SCLK, DIN, and DOUT pins. It requires no level-shifting when interfaced with 5V-tolerant MCU GPIOs, and DRDY provides hardware-ready signaling for efficient polling or interrupt-driven reads.
What is the maximum achievable effective resolution of the MAX1416EPE+ in buffered mode at 60Hz output data rate?
In buffered mode with fCLKIN = 2.4576MHz and gain = 128, the MAX1416EPE+ achieves 16-bit peak-to-peak resolution at 60Hz ODR (Table 4). Its typical RMS noise is 1.19µV under these conditions-translating to ~19.2 effective bits (ENOB) when referenced to a 2.5V full-scale range.
MAX1416EPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- 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-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MAX1416EPE+ FAQ
1.How can I place an order for MAX1416EPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1416EPE+ 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 MAX1416EPE+ reliable?
The price and inventory of MAX1416EPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1416EPE+ is usually 5 days.
3.What payment methods are accepted for MAX1416EPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1416EPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1416EPE+?
MAX1416EPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1416EPE+ 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 MAX1416EPE+?
For technical support, including MAX1416EPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1416EPE+ requirements.
6.How does Aetrix verify that MAX1416EPE+ is sourced from the original manufacturer or authorized distributors?
All MAX1416EPE+ 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 MAX1416EPE+ meets industry standards.
7.What is the process for return or replacement of MAX1416EPE+?
All MAX1416EPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1416EPE+, 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 MAX1416EPE+ part is unused and in its original packaging.
Return procedure for MAX1416EPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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