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Maxim Integrated Semiconductor Electronic Components Datasheet


MAX11060

(MAX11040K / MAX11060) Sigma-Delta ADCs


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MAX11060 pdf
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19-5741; Rev 2; 11/11
EVAALVUAAILTAIOBNLEKIT
24-/16-Bit, 4-Channel, Simultaneous-Sampling,
Cascadable, Sigma-Delta ADCs
General Description
The MAX11040K/MAX11060 are 24-/16-bit, 4-channel,
simultaneous-sampling, sigma-delta analog-to-digital
converters (ADCs). The devices allow simultaneous
sampling of as many as 32 channels using a built-in
cascade feature to synchronize as many as eight
devices. The serial interface of the devices allows read-
ing data from all the cascaded devices using a single
command. Four modulators simultaneously convert
each fully differential analog input with a programmable
data output rate ranging from 0.25ksps to 64ksps. The
devices achieve 106dB SNR at 16ksps and 117dB SNR
at 1ksps (MAX11040K). The devices operate from a
single +3V supply. The differential analog input range is
±2.2V when using the internal reference; an external
reference is optional. Each input is overvoltage protect-
ed up to ±6V without damage. The devices use an
internal crystal oscillator or an external source for clock.
The devices are compatible with SPI™, QSPI™,
MICROWIRE™, and DSP-compatible 4-wire serial inter-
faces. An on-board interface logic allows one serial inter-
face (with a single chip select) to control up to eight
cascaded devices or 32 simultaneous sampling analog
input channels.
The devices are ideally suited for power-management
systems. Each channel includes an adjustable sam-
pling phase enabling internal compensation for phase
shift due to external dividers, transformers, or filters at
the inputs. The output data rate is adjustable with a
0.065% resolution (at 16ksps or below) to track the
varying frequency of a periodic input. A SYNC input
allows periodic alignment of the conversion timing of
multiple devices with a remote timing source.
The devices are available in a 38-pin TSSOP package speci-
fied over the -40°C to +105°C industrial temperature range.
Applications
Power-Protection Relay Equipment
Multiphase Power Systems
Industrial Data-Acquisition Systems
Medical Instrumentation
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX11040KGUU+ -40°C to +105°C 38 TSSOP
MAX11060GUU+ -40°C to +105°C 38 TSSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
Features
o Four Fully Differential Simultaneously Sampled
Channels
o Cascadable for Up to 32 Channels of
Simultaneous Sampling
o 106dB (MAX11040K) SNR at 16ksps
o 117dB (MAX11040K) SNR at 1ksps
o 0.25% Error Over a 1000:1 Dynamic Range,
Processed Over 16.7ms (MAX11040K)
o ±2.2V Full-Scale Input Range
o ±6V Overvoltage Protected Inputs
o Internal Crystal Oscillator
o 2.5V, 50ppm/°C Internal Reference or External
Reference
o Programmable Output Data Rate
0.25ksps to 64ksps Range
0.065% Resolution
o Programmable Sampling Phase
0 to 333µs Delay in 1.33µs Steps
o SPI-/QSPI-/MICROWIRE-/DSP-Compatible 4-Wire
Serial Interface
o Cascadable Interface Allows Control of Up to
Eight Devices with a Single CS Signal
o 3.0V to 3.6V Analog Supply Voltage
o 2.7V to VAVDD Digital Supply Voltage
o 38-Pin TSSOP Package
Functional Diagram
AIN0+
AIN0-
REF0
AIN1+
AIN1-
REF1
AIN2+
AIN2-
REF2
AIN3+
AIN3-
REF3
REFIO
OVRFLW FAULT
24-/16-BIT
ADC
DIGITAL
FILTER
24-/16-BIT
ADC
24-/16-BIT
ADC
DIGITAL
FILTER
DIGITAL
FILTER
REGISTERS AND
DIGITAL
CONTROL
24-/16-BIT
ADC
DIGITAL
FILTER
SERIAL
INTERFACE
SYNC
DRDYIN
DRDYOUT
CASCIN
CASCOUT
CS
SCLK
DIN
DOUT
AGND
2.5V
REFERENCE
CRYSTAL
OSCILLATOR
MAX11040K
MAX11060
XIN XOUT CLKOUT
DGND
MICROWIRE is a trademark of National Semiconductor Corp.
SPI/QSPI are trademarks of Motorola, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Datasheet pdf - http://www.DataSheet4U.net/



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MAX11060 pdf
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24-/16-Bit, 4-Channel, Simultaneous-Sampling,
Cascadable, Sigma-Delta ADCs
ABSOLUTE MAXIMUM RATINGS
AVDD to AGND ........................................................-0.3V to +4V
DVDD to DGND ......................................-0.3V to (VAVDD + 0.3V)
AGND to DGND.....................................................-0.3V to +0.3V
DIN, SCLK, CS, XIN, SYNC, DRDYIN,
CASCIN to DGND..............................-0.3V to (VDVDD + 0.3V)
DOUT, DRDYOUT, CASCOUT, CLKOUT,
AIN_ _ to AGND (VAVDD < 3V or VDVDD < 2.7V or FAULTDIS = 1
or SHDN = 1 or fXIN CLOCK < 20MHz) ..............-3.5V to +3.5V
REFIO, REF_ to AGND............................-0.3V to (VAVDD + 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA = +70°C)
TSSOP (derated 13.7mW/°C above +70°C)..............1096mW
XOUT to DGND..................................-0.3V to (VDVDD + 0.3V)
FAULT, OVRFLW to DGND ...................................-0.3V to +4.0V
Operating Temperature Range .........................-40°C to +105°C
Storage Temperature Range .............................-60°C to +150°C
AIN_+ to AIN_- ......................................................-6.0V to +6.0V
Junction Temperature ......................................................+150°C
AIN_ _ to AGND (VAVDD 3V, VDVDD 2.7V, FAULTDIS = 0,
SHDN = 0, fXIN CLOCK 20MHz)......................-6.0V to +6.0V
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VAVDD = +3.0V to +3.6V, VDVDD = +2.7V to VAVDD, fXIN CLOCK = 24.576MHz, fOUT = 16ksps, VREFIO = +2.5V (external), CREFIO =
CREF0 = CREF1 = CREF2 = CREF3 = 1µF to AGND, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY (Note 2)
Resolution
MAX11040K
24
Bits
MAX11060
16
Differential Nonlinearity
DNL
24-bit no missing code (MAX11040K);
16-bit no missing code (MAX11060)
0.1
LSB
Integral Nonlinearity (Note 3)
TA = +25°C and +105°C (MAX11040K)
INL TA = -40°C (MAX11040K)
MAX11060
0.001
0.001
0.004
0.006
%FS
Offset Error
-1 +1 mV
Gain Error
(Note 4)
-1 +1 %FS
Offset-Error Drift
(Note 5)
0.5 ppm/°C
Gain-Error Drift
(Note 5)
1 ppm/°C
Change in Gain Error vs. fOUT
Channel-to-Channel Gain Matching
fOUT = 0.25ksps to 64ksps
< 0.025
0.03
% FS
% FS
DYNAMIC SPECIFICATIONS (62.5Hz sine-wave input, 2.17VP-P)
Signal-to-Noise Ratio
SNR
(Note 6) (MAX11040K)
(Note 6) (MAX11060)
103 106
94.5
dB
Total Harmonic Distortion
THD
TA = +25°C and +105°C (MAX11040K)
TA = -40°C (MAX11040K)
MAX11060
-106
-94
-90
dB
Signal-to-Noise Plus Distortion
SINAD
TA = +25°C and +105°C (MAX11040K)
TA = -40°C (MAX11040K)
MAX11060
93
89
98
94
dB
Spurious-Free Dynamic Range
SFDR
TA = +25°C and +105°C (MAX11040K)
TA = -40°C (MAX11040K)
MAX11060
94
89
100
100
dB
Relative Accuracy (Note 7)
0.1%FS input (MAX11040K)
6.0%FS input (MAX11040K)
0.25
0.005
%
2 _______________________________________________________________________________________
Datasheet pdf - http://www.DataSheet4U.net/



Part Number MAX11060
Description (MAX11040K / MAX11060) Sigma-Delta ADCs
Maker Maxim Integrated Products - Maxim Integrated Products
Total Page 30 Pages
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