MAX1402EAI+ by Analog Devices

+5V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC


The MAX1402 low-power, multichannel, serial-output analog-to-digital converter (ADC) features matched 200µA current sources for sensor excitation. This ADC uses a sigma-delta modulator with a digital decimation filter to achieve 16-bit accuracy. The digital filter’s user-selectable decimation factor allows the conversion resolution to be reduced in exchange for a higher output data rate. True 16-bit performance is achieved at an output data rate of up to 480sps. In addition, the modulator sampling frequency may be optimized for either lowest power dissipation or highest throughput rate. The MAX1402 operates from a +5V supply. This device offers three fully differential input channels that may be independently programmed with a gain between +1V/V and +128V/V. Furthermore, it can compensate an input-referred DC offset up to 117% of the selected full-scale range. These three differential channels may also be configured to operate as five pseudo-differential input channels. Two additional, fully differential system-calibration channels are provided for gain and offset error correction. The MAX1402 may be configured to sequentially scan all signal inputs and provide the results via the serial interface with minimum communications overhead. When used with a 2.4576MHz or 1.024MHz master clock, the digital decimation filter can be programmed to produce zeros in its frequency response at the line frequency and associated harmonics, ensuring excellent line rejection without the need for further post-filtering. The MAX1402 is available in a 28-pin SSOP package.

Where to Buy

Prices starting from US$27.01

Distributor Stock
Logo for RS
RS
from US$27.14
23
in stock
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Logo for element14
element14
from US$27.01
-
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Logo for Farnell
Farnell
from US$30.11
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Logo for Newark Electronics
Newark Electronics
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Features

18-Bit Resolution, Sigma-Delta ADC
16-Bit Accuracy with No Missing Codes to 480sps
Low Quiescent Current 250µA (operating mode) 2µA (power-down mode)
250µA (operating mode)
2µA (power-down mode)
Matched On-Board Current Sources (200µA) for Sensor Excitation
3 Fully Differential or 5 Pseudo-Differential Signal Input Channels
2 Additional, Fully Differential Calibration Channels/Auxiliary Input Channels
Programmable Gain and Offset
Fully Differential Reference Inputs
Converts Continuously or On Command
Automatic Channel Scanning and Continuous Data Output Mode
Operates with +5V Analog Supply and +3V or +5V Digital Supply
3-Wire Serial Interface—SPI™/QSPI™ Compatible
28-Pin SSOP Package

Specifications

Resolution (bits) (ADC) 18
# Input Channels 5
Conv. Rate (ksps) (max) 4.8
Data Bus SPI
ADC Architecture Sigma-Delta
Diff/S.E. Input Diff. Only
External VREF (V) (min) 0
External VREF (V) (max) 2.5
Unipolar VIN (V) (max) 2.5
Bipolar VIN (±V) (max) 2.5
INL (±LSB) 3.93216
Package/Pins SSOP/28
BudgetaryPrice (See Notes) 13.52


MAX1402EAI+ Data & Signal Conversion by Analog Devices

ADC 5-CH SIGMA-DELTA 18BIT SSOP-28

Status: Unknown
Series: 5 Channel 8-Bit Sigma-Delta ADCs
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 18bit
Sampling Rate 480SPS
Input Channel Type Differential Pseudo Differential
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style SSOP
No. of Pins 28Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range 5 Channel 8-Bit Sigma-Delta ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

MAX1402EAI+, General Purpose ADCs | RS
ADC, 5-CH, SIGMA-DELTA, 18BIT, SSOP-28 | Farnell
Adc, 5-Ch, Sigma-Delta, 18Bit, Ssop-28 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1402EAI+ ?

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Is the MAX1402EAI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1402EAI+ have stock available?

Authorised distributors including RS, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX1402EAI+ .

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