MAX1400CAI+ by Analog Devices

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


The MAX1400 18-bit, low-power, multichannel, serial-output ADC uses a sigma-delta modulator with a digital decimation filter to achieve true 16-bit accuracy. The user-selectable decimation factor of the digital filter allows the conversion resolution to be reduced in exchange for a higher output data rate. The device achieves true 16-bit performance 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 MAX1400 operates from +5V. This device offers three fully differential input channels that can be independently programmed with a gain between +1V/V and +128V/V. Furthermore, it can compensate an input-referred DC offset (such as system 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. External access is provided to the multiplexer (mux) output to facilitate additional signal processing. The MAX1400 can be configured to scan all signal inputs sequentially and provide the results through 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 MAX1400 comes in a 28-pin SSOP package.

Where to Buy

Prices starting from US$15.59

Distributor Stock
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Farnell
from US$25.75
6
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Analog Devices
from US$20.78
1,081
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CoreStaff
from US$15.59
26
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Newark Electronics
from US$28.41
6
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element14
from US$27.74
6
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Features

18-Bit Resolution, Sigma-Delta ADC
16-Bit Performance with No Missing Codes to 480sps
Low Quiescent Current 250µA (operating mode) 2µA (power-down mode)
250µA (operating mode)
2µA (power-down mode)
3 Fully Differential or 5 Pseudo-Differential Signal Input Channels
2 Additional Fully Differential Calibration Channels/Auxiliary Input Channels
Access to the Mux Output/ADC Input
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
SPI™/QSPI™-Compatible 3-Wire Serial Interface
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) 1.25
INL (±LSB) 3.93216
Package/Pins SSOP/28
BudgetaryPrice (See Notes) 13.52


MAX1400CAI+ 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
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 0°C
Operating Temperature Max 70°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

+5V 18-Bit Low-Power Multichan | Analog Devices
Adc, 5-Ch, Sigma-Delta, 18Bit, Ssop-28 | Newark Electronics
ADC, 5-CH, SIGMA-DELTA, 18BIT, SSOP-28 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1400CAI+ ?

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Is the MAX1400CAI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1400CAI+ have stock available?

Authorised distributors including Analog Devices, CoreStaff, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX1400CAI+ .

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