MAX11205 Datasheet PDF - Maxim Integrated Products


www.Datasheet-PDF.com

MAX11205
Maxim Integrated Products

Part Number MAX11205
Description Delta- Sigma ADC with 2-Wire Serial Interface
Page 14 Pages

MAX11205 datasheet pdf
View PDF for PC
MAX11205 pdf
View PDF for Mobile


No Preview Available !

19-5238; Rev 0; 4/10
www.DataSheet4U.com
16-Bit, Single-Channel, Ultra-Low Power,
Delta-Sigma ADC with 2-Wire Serial Interface
General Description
The MAX11205 is an ultra-low-power (< 300FA max
active current), high-resolution, serial-output ADC. This
device provides the highest resolution per unit power
in the industry, and is optimized for applications that
require very high dynamic range with low power such as
sensors on a 4mA to 20mA industrial control loop. The
MAX11205 provides a high-accuracy internal oscillator
that requires no external components.
When used with the specified data rates, the internal
digital filter provides more than 80dB rejection of 50Hz or
60Hz line noise. The MAX11205 provides a simple 2-wire
serial interface in the space-saving, 10-pin FMAXM pack-
age. The MAX11205 operates over the -40NC to +85NC
temperature range.
Applications
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
Features
S 16-Bit Full-Scale Resolution
S 720nVRMS Noise (MAX11205B)
S 3ppm INL
S No Missing Codes
S Ultra-Low-Power Dissipation
Operating-Mode Current Drain < 300µA (max)
Sleep-Mode Current Drain < 0.1µA
S 2.7V to 3.6V Analog Supply Voltage Range
S 1.7V to 3.6V Digital and I/O Supply Voltage Range
S Fully Differential Signal Inputs
S Fully Differential Reference Inputs
S Internal System Clock
2.4576MHz (MAX11205A)
2.2528MHz (MAX11205B)
S External Clock
S Serial 2-Wire Interface (Clock Input and Data Input)
S On-Demand Offset and Gain Self-Calibration
S -40°C to +85°C Operating Temperature Range
S ±2kV ESD Protection
S Lead(Pb)-Free and RoHS-Compliant µMAX
Package
Ordering Information
PART
PIN-PACKAGE
OUTPUT RATE
(sps)
MAX11205AEUB+*
MAX11205BEUB+
10 FMAX
10 FMAX
120
13.75
Note: All devices are specified over the -40NC to +85NC oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Future product—contact factory for availability.
RESOLUTION
(BITS)
24
20
18
16
4-WIRE SPI, 16-PIN QSOP,
PROGRAMMABLE GAIN
MAX11210
MAX11206
MAX11209
MAX11213
4-WIRE SPI,
16-PIN QSOP
MAX11200
MAX11207
MAX11211
MAX11203
Selector Guide
2-WIRE SERIAL,
10-PIN μMAX
MAX11201 (with buffers)
MAX11202 (without buffers)
MAX11208
MAX11212
MAX11205
µMAX is a registered trademark of Maxim Integrated Products, 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.



No Preview Available !

www.DataSheet4U.com
16-Bit, Single-Channel, Ultra-Low Power,
Delta-Sigma ADC with 2-Wire Serial Interface
ABSOLUTE MAXIMUM RATINGS
Any Pin to GND.....................................................-0.3V to +3.9V
AVDD to GND.......................................................-0.3V to +3.9V
DVDD to GND.......................................................-0.3V to +3.9V
Analog Inputs (AINP, AINN, REFP, REFN)
to GND.............................................. -0.3V to (VAVDD + 0.3V)
Digital Inputs and Digital Outputs
to GND.............................................. -0.3V to (VDVDD + 0.3V)
ESDHB (AVDD, AINP, AINN, REFP, REFN, DVDD, CLK, SCLK,
RDY/DOUT, GND)............................................. Q2kV (Note 1)
Continuous Power Dissipation (TA = +70NC)
10-Pin FMAX (derate 5.6mW/NC above +70NC)...........444mW
Operating Temperature Range........................... -40NC to +85NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................ -55NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Note 1: Human Body Model to specification MIL-STD-883 Method 3015.7.
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 = +3.6V, VDVDD = +1.8V, VREFP - VREFN = VAVDD; internal clock, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25NC under normal conditions, unless otherwise noted.)
PARAMETER
ADC PERFORMANCE
Noise-Free Resolution
Thermal Noise (Notes 2, 3)
Integral Nonlinearity
Zero Error
Zero Drift
Full-Scale Error
SYMBOL
CONDITIONS
NFR
VN
INL
VOFF
(Notes 2, 3)
MAX11205A
MAX11205B
(Note 4)
After calibration, VREFP - VREFN = 2.5V
After calibration, VREFP - VREFN =2.5V
(Note 5)
MIN TYP MAX UNITS
16 Bits
2.1
0.72
FVRMS
-20 +20 ppmFSR
-20 1 +20 ppmFSR
50 nV/NC
-45 3 +45 ppmFSR
Full-Scale Error Drift
Power-Supply Rejection
ANALOG INPUTS/REFERENCE INPUTS
Common-Mode Rejection (Note 6)
CMR
Normal Mode 50Hz Rejection
Normal Mode 60Hz Rejection
Common-Mode Voltage Range
NMR50
NMR60
Absolute Input Voltage
AVDD DC rejection
DVDD DC rejection (Note 6)
DC rejection
50Hz/60Hz rejection, MAX11205A
50Hz/60Hz rejection, MAX11205B
MAX11205B (Note 7)
MAX11205B (Note 7)
Low input voltage
High input voltage
0.05
70 80
86 100
ppmFSR/
NC
dB
90
90
144
65
73
GND
123
80.5
87
GND -
30mV
VAVDD
VAVDD
+ 30mV
dB
dB
dB
V
V
DC Input Leakage
AIN Dynamic Input Current
Sleep mode (Note 2)
±1 FA
5 FA
2   _______________________________________________________________________________________



No Preview Available !

www.DataSheet4U.com
16-Bit, Single-Channel, Ultra-Low Power,
Delta-Sigma ADC with 2-Wire Serial Interface
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = +3.6V, VDVDD = +1.8V, VREFP - VREFN = VAVDD; internal clock, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25NC under normal conditions, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
REF Dynamic Input Current
AIN Input Capacitance
7.5 FA
10 pF
REF Input Capacitance
15 pF
AIN Voltage Range
REF Voltage Range
Input Sampling Rate
VAINP - VAINN
fS
MAX11205A
MAX11205B
-VREF
+VREF
VAVDD
246
225
V
V
kHz
REF Sampling Rate
MAX11205A
MAX11205B
246
225
kHz
LOGIC INPUTS (SCLK, CLK)
Input Current
Input leakage current
±1 FA
Input Low Voltage
VIL
0.3 x
VDVDD
V
Input High Voltage
VIH
0.7 x
VDVDD
V
Input Hysteresis
External Clock
VHYS
MAX11205A
MAX11205B
200
2.4576
2.2528
mV
MHz
LOGIC OUTPUTS (RDY/DOUT)
Output Low Level
VOL IOL = 1mA; also tested for VDVDD = 3.6V
0.4 V
Output High Level
VOH
IOH = 1mA; also tested for VDVDD = 3.6V
0.9 x
VDVDD
V
Floating State Leakage Current
Output leakage current
Q10 FA
Floating State Output
Capacitance
9 pF
POWER REQUIREMENTS
Analog Supply Voltage
AVDD
2.7 3.6 V
Digital Supply Voltage
DVDD
1.7 3.6 V
Total Operating Current
DVDD Operating Current
AVDD Operating Current
AVDD Sleep Current
(AVDD + DVDD)
230 300
45 60
185 245
0.4 2
FA
FA
FA
FA
DVDD Sleep Current
2-WIRE SERIAL-INTERFACE TIMING CHARACTERISTICS
0.35
2
FA
SCLK Frequency
SCLK Pulse Width Low
SCLK Pulse Width High
fSCLK
t1
t2
60/40 duty cycle 5MHz clock
40/60 duty cycle 5MHz clock
5 MHz
80 ns
80 ns
SCLK Rising Edge to Data Valid
Transition Time
t3
40 ns
_______________________________________________________________________________________   3



No Preview Available !

www.DataSheet4U.com
16-Bit, Single-Channel, Ultra-Low Power,
Delta-Sigma ADC with 2-Wire Serial Interface
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = +3.6V, VDVDD = +1.8V, VREFP - VREFN = VAVDD; internal clock, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25NC under normal conditions, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SCLK Rising Edge Data Hold
Time
t4 Allows for positive edge data read
3
ns
RDY/DOUT Fall to SCLK Rising
Edge
t5
0 ns
Next Data Update Time;
No Read Allowed
Data Conversion Time
Data Ready Time After
Calibration Starts (CAL + CNV)
SCLK High After RDY/DOUT Goes
Low to Activate Sleep Mode
t6
MAX11205A
MAX11205B
t7
MAX11205A
MAX11205B
t8
MAX11205A
MAX11205B
t9
MAX11205A
MAX11205B
155
169
8.6
73
208.3
256.1
0 8.6
0 73
Fs
ms
ms
ms
Time from RDY/DOUT Low to
SCLK High for Sleep Mode
Activation
MAX11205A
t10
MAX11205B
0 8.6
ms
0 73
Data Ready Time After Wake-Up
from Sleep Mode
t11
MAX11205A
MAX11205B
8.6
73
ms
Data Ready Time After
Calibration from Sleep Mode
Wake-Up (CAL + CNV)
MAX11205A
t12
MAX11205B
208.4
256.2
ms
Note 2: These specifications are not fully tested and are guaranteed by design and/or characterization.
Note 3: VAINP = VAINN.
Note 4: ppmFSR is parts per million of full-scale range.
Note 5: Positive full-scale error includes zero-scale errors.
Note 6: Tested with VREF = 1.8V.
Note 7: The MAX11205A has no normal-mode rejection at 50Hz or 60Hz.
4   _______________________________________________________________________________________




MAX11205 datasheet pdf
Download PDF
MAX11205 pdf
View PDF for Mobile


Similiar Datasheets : MAX11200 MAX11201 MAX11202 MAX11203 MAX11205 MAX11206 MAX11207 MAX11208 MAX11209 MAX1121 MAX11210 MAX11211 MAX11212 MAX11213 MAX1122 MAX1123 MAX1124 MAX1125 MAX11253 MAX11254 MAX11259 MAX1126 MAX11262 MAX1127 MAX11270

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
Since 2010   ::   HOME   ::   Privacy Policy + Contact