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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1082 Datasheet

Serial 10-Bit ADCs

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MAX1082 pdf
MAX1082/MAX1083
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 10-Bit ADCs with Internal Reference
General Description
The MAX1082/MAX1083 10-bit analog-to-digital convert-
ers (ADCs) combine a 4-channel analog-input multiplexer,
high-bandwidth track/hold (T/H), and serial interface with
high conversion speed and low power consumption. The
MAX1082 operates from a single +4.5V to +5.5V supply;
the MAX1083 operates from a single +2.7V to +3.6V sup-
ply. Both devices’ analog inputs are software configurable
for unipolar/bipolar and single-ended/pseudo-differential
operation.
The 4-wire serial interface connects directly to SPI/QSPI™
and MICROWIRE® devices without external logic. A serial
strobe output allows direct connection to TMS320-family
digital signal processors. The MAX1082/ MAX1083 use an
external serial-interface clock to perform successive-
approximation analog-to-digital conversions. The devices
feature an internal +2.5V reference and a reference-buffer
amplifier with a ±1.5% voltage-adjustment range. An
external reference with a 1V to VDD range may also be
used.
The MAX1082/MAX1083 provide a hard-wired SHDN pin
and four software-selectable power modes (normal opera-
tion, reduced power (REDP), fast power-down (FASTPD),
and full power-down (FULLPD)). These devices can be
programmed to shut down automatically at the end of a
conversion or to operate with reduced power. When using
the power-down modes, accessing the serial interface
automatically powers up the devices, and the quick turn-
on time allows them to be shut down between all conver-
sions.
The MAX1082/MAX1083 are available in 16-pin TSSOP
packages.
Features
o 4-Channel Single-Ended or 2-Channel
Pseudo-Differential Inputs
o Internal Multiplexer and Track/Hold
o Single-Supply Operation
+4.5V to +5.5V (MAX1082)
+2.7V to +3.6V (MAX1083)
o Internal +2.5V Reference
o 400kHz Sampling Rate (MAX1082)
o Low Power: 2.5mA (400ksps)
1.3mA (REDP)
0.9mA (FASTPD)
2µA (FULLPD)
o SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire
Serial Interface
o Software-Configurable Unipolar or Bipolar Inputs
o 16-Pin TSSOP Package
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX1082ACUE+
0°C to +70°C 16 TSSOP
MAX1082BCUE+
0°C to +70°C 16 TSSOP
MAX1082AEUE+ -40°C to +85°C 16 TSSOP
MAX1082BEUE+ -40°C to +85°C 16 TSSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
INL
(LSB)
±1/2
±1
±1/2
±1
Portable Data Logging
Applications
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Pen Digitizers
Process Control
Ordering Information continued at end of data sheet.
Pin Configuration
TOP VIEW
VDD1 1
CH0 2
CH1 3
CH2 4
CH3 5
+
MAX1082
MAX1083
16 VDD2
15 SCLK
14 CS
13 DIN
12 SSTRB
Typical Operating Circuit appears at end of data sheet.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National Semiconductor Corp.
COM 6
SHDN 7
REF 8
11 DOUT
10 GND
9 REFADJ
TSSOP
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1690 Rev 2; 12/14


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1082 Datasheet

Serial 10-Bit ADCs

No Preview Available !

MAX1082 pdf
MAX1082/MAX1083
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 10-Bit ADCs with Internal Reference
ABSOLUTE MAXIMUM RATINGS
VDD_ to GND............................................................ -0.3V to +6V
VDD_ to VDD2 ....................................................... -0.3V to +0.3V
CH0–CH3, COM to GND ........................... -0.3V to (VDD + 0.3V)
REF, REFADJ to GND................................ -0.3V to (VDD + 0.3V)
Digital Inputs to GND .............................................. -0.3V to +6V
Digital Outputs to GND.............................. -0.3V to (VDD + 0.3V)
Digital Output Sink Current .................................................25mA
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP (derate 6.7mW/°C above +70°C) ........ 533mW
Operating Temperature Ranges
MAX1082_C_E/MAX1083_CUE ......................... 0°C to +70°C
MAX1082_E_E/MAX1083_EUE ....................... -40°C to +85°C
Storage Temperature Range ............................ -60°C to +150°C
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—MAX1082
(VDD1 = VDD2 = +4.5V to +5.5V, COM = GND, fOSC = 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), external +2.5V
at REF, REFADJ = VDD1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
DC ACCURACY (Note 1)
Resolution
Relative Accuracy (Note 2)
Differential Nonlinearity
Offset Error
Gain Error (Note 3)
SYMBOL
CONDITIONS
INL
DNL
MAX1082A
MAX1083B
No missing codes over temperature
MIN TYP MAX UNITS
10 bits
±0.5
±1.0
LSB
±1.0 LSB
±3.0 LSB
±3.0 LSB
Gain-Error Temperature
Coefficient
±1.6
ppm/°C
Channel-to-Channel Offset-Error
Matching
±0.2
LSB
DYNAMIC SPECIFICATIONS (100kHz sine-wave input, 2.5Vp-p, 400ksps, 6.4MHz clock, bipolar input mode)
Signal-to-Noise plus Distortion
Ratio
SINAD
60 dB
Total Harmonic Distortion
Spurious-Free Dynamic Range
Intermodulation Distortion
Channel-to-Channel Crosstalk
(Note 4)
THD
SFDR
IMD
Up to the 5th harmonic
fIN1 = 99kHz, fIN2 =102kHz
200kHz, VIN = 2.5Vp-p
-70 dB
70 dB
76 dB
-78 dB
Full-Power Bandwidth
Full-Linear Bandwidth
CONVERSION RATE
Conversion Time (Note 5)
Track/Hold Acquisition Time
Aperture Delay
Aperture Jitter
Serial Clock Frequency
Duty Cycle
-3dB point
SINAD > 58dB
tCONV
tACQ
fSCLK
6 MHz
350 kHz
2.5 µs
400 ns
10 ns
<50 ps
0.5 6.4 MHz
40 60 %
2 Maxim Integrated


Part Number MAX1082
Description Serial 10-Bit ADCs
Maker Maxim Integrated
Total Page 23 Pages
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