MX7705EUE+ by Analog Devices

16-Bit, Low-Power, 2-Channel, Sigma-Delta ADC


The MX7705 low-power, 2-channel, serial-output analog-to-digital converter (ADC) includes a sigma-delta modulator with a digital filter to achieve 16-bit resolution with no missing codes. This ADC is pin compatible and software compatible with the AD7705. The MX7705 features an on-chip input buffer and programmable-gain amplifier (PGA). The device offers an SPI-/QSPI™-/MICROWIRE ®-compatible serial interface. The MX7705 operates from a single 2.7V to 5.25V supply. The operating supply current is 320µA (typ) with a 3V supply. Power-down mode reduces the supply current to 2µA (typ). Self-calibration and system calibration allow the MX7705 to correct for gain and offset errors. Excellent DC performance (±0.003% FSR INL) and low noise (650nV) make the MX7705 ideal for measuring low-frequency signals with a wide dynamic range. The device accepts fully differential bipolar/unipolar inputs. An internal input buffer allows for input signals with high source impedances. An on-chip digital filter, with a programmable cutoff and output data rate, processes the output of the sigma-delta modulator. The first notch frequency of the digital filter is chosen to provide 150dB rejection of common-mode 50Hz or 60Hz noise and 98dB rejection of normal-mode 50Hz or 60Hz noise. A PGA and digital filtering allow signals to be directly acquired with little or no signal-conditioning requirements. The MX7705 is available in a 16-pin TSSOP package.

Where to Buy

Prices starting from US$7.11

Distributor Stock
Logo for Farnell
Farnell
from US$9.94
No stock
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Logo for Analog Devices
Analog Devices
from US$7.11
1,389
in stock
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element14
from US$8.14
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Newark Electronics
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Features

Pin Compatible and Software Compatible with the AD7705
16-Bit Sigma-Delta ADC
Two Fully Differential Input Channels
0.003% Integral Nonlinearity with No Missing Codes
Interface with Schmitt Triggers on Inputs
Internal Analog Input Buffers
PGA from 1 to 128
Single (2.7V to 3.6V) or (4.75V to 5.25V) Supply
Low Power 1mW (max), 3V Supply 2µA (typ) Power-Down Current
1mW (max), 3V Supply
2µA (typ) Power-Down Current
SPI-/QSPI-/MICROWIRE-Compatible 3-Wire Serial Interface

Specifications

Resolution (bits) (ADC) 16
# Input Channels 2
Conv. Rate (ksps) (max) 0.5
Data Bus SPI
ADC Architecture Sigma-Delta
Diff/S.E. Input Diff. Only
External VREF (V) (min) 1
External VREF (V) (max) 3.5
Unipolar VIN (V) (max) 2.5
Bipolar VIN (±V) (max) 2.5
INL (±LSB) 1.96608
Package/Pins PDIP/16SOIC (W)/16TSSOP/16
BudgetaryPrice (See Notes) 4.83


MX7705EUE+ Data & Signal Conversion by Analog Devices

ADC 2-CH SIGMA-DELTA 16BIT TSSOP-16

Status: Unknown
Series: Dual 16-Bit Sigma-Delta ADCs
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 16bit
Sampling Rate 500SPS
Input Channel Type Differential
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 2.7V
Supply Voltage Max 5.25V
ADC / DAC Case Style TSSOP
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range Dual 16-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

16-Bit, Low-Power, 2-Channel, | Analog Devices
ADC, 2-CH, SIGMA-DELTA, 16BIT, TSSOP-16 | Farnell
Adc, 2-Ch, Sigma-Delta, 16Bit, Tssop-16 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MX7705EUE+ ?

Additional datasheets, footprints and schematics for MX7705EUE+ are listed on our Part Details page. You can also find images and similar parts to MX7705EUE+ on this page.

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Is the MX7705EUE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MX7705EUE+ have stock available?

Authorised distributors including Analog Devices, element14, Farnell and Newark Electronics have stock available or on a lead time for MX7705EUE+ .

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