MX7705EUE-T datasheet, PDF - EEWORLD Datasheet

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MX7705EUE-T: DescriptionAnalog to Digital Converters - ADC 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADC; CategoryAnalog mixed-signal IC converter; File Size457KB，33 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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MX7705EUE-T Overview

Analog to Digital Converters - ADC 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADC

MX7705EUE-T Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Maxim
Parts packaging code	TSSOP
package instruction	TSSOP-16
Contacts	16
Reach Compliance Code	not_compliant
ECCN code	EAR99
Maximum analog input voltage	1.75 V
Minimum analog input voltage	-1 V
Converter type	ADC, DELTA-SIGMA
JESD-30 code	R-PDSO-G16
JESD-609 code	e0
length	5 mm
Maximum linear error (EL)	0.003%
Humidity sensitivity level	1
Number of analog input channels	2
Number of digits	16
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Output bit code	BINARY, OFFSET BINARY
Output format	SERIAL
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP16,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	245
power supply	3/5 V
Certification status	Not Qualified
Sampling rate	0.0384 MHz
Sample and hold/Track and hold	TRACK
Maximum seat height	1.1 mm
Nominal supply voltage	3 V
surface mount	YES
technology	BICMOS
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4.4 mm

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MX7705

16-Bit, Low-Power, 2-Channel,

Sigma-Delta ADC

General Description

The MX7705 low-power, 2-channel, serial-output ana-

log-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 fea-

tures 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 perfor-

mance (±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 dif-

ferential 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 out-

put 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 sig-

nals to be directly acquired with little or no signal-condi-

tioning requirements.

The MX7705 is available in a 16-pin TSSOP package.

Benefits and 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

SPI-/QSPI-/MICROWIRE-Compatible 3-Wire Serial

Interface

Ordering Information

PART

MX7705EPE+

MX7705EUE+

TEMP RANGE

-40°C to +85°C

PIN- PACKAGE

16 PDIP

16 TSSOP

MX7705EWE+

-40°C to +85°C

16 SO

+Denotes

a lead(Pb)-free/RoHS-compliant package.

Applications

Industrial Instruments

Weigh Scales

Strain-Gauge Measurements

Loop-Powered Systems

Flow and Gas Meters

Medical Instrumentation

Pressure Transducers

Thermocouple Measurements

RTD Measurements

Pin Configuration

TOP VIEW

SCLK 1

CLKIN 2

CLKOUT 3

CS 4

RESET 5

AIN2+ 6

AIN1+ 7

AIN1- 8

16 GND

15 V

14 DIN

MX7705

13 DOUT

12 DRDY

11 AIN2-

10 REF-

REF+

TSSOP

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National

Semiconductor Corp.

19-3051; Rev 5; 6/15

MX7705EUE-T Related Products

	MX7705EUE-T	MX7705EPE-	MX7705EUE-
Description	Analog to Digital Converters - ADC 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADC		Analog to Digital Converters - ADC 16-Bit 2Ch Precision ADC
Product Category	-	Analog to Digital Converters - ADC	Analog to Digital Converters - ADC
Manufacturer	-	Maxim	Maxim
RoHS	-	Details	Details
Mounting Style	-	Through Hole	SMD/SMT
Package / Case	-	PDIP-16	TSSOP-16
Resolution	-	16 bit	16 bit
Number of Channels	-	2 Channel	2 Channel
Sampling Rate	-	500 S/s	500 S/s
Input Type	-	Differential	Differential
Interface Type	-	Serial, SPI	Serial, 3-Wire, SPI
Architecture	-	Sigma-Delta	Sigma-Delta
Maximum Operating Temperature	-	+ 85 C	+ 85 C
Minimum Operating Temperature	-	- 40 C	- 40 C
Packaging	-	Tube	Tube
Height	-	4.45 mm (Max)	0.9 mm
INL - Integral Nonlinearity	-	+/- 0.003 %FSR	+/- 0.003 %FSR
Length	-	19.43 mm (Max)	5 mm
Number of Converters	-	1 Converter	1 Converter
Operating Supply Voltage	-	2.7 V to 5.25 V	2.7 V to 5.25 V
Pd - Power Dissipation	-	755 mW	755 mW
Product	-	Analog to Digital Converters	Analog to Digital Converters
Width	-	7.87 mm (Max)	4.4 mm
Unit Weight	-	0.057419 oz	0.006102 oz

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