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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX11634 Datasheet

12-Bit 300ksps ADCs

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19-5962; Rev 1; 9/11
EVAALVUAAILTAIOBNLEKIT
12-Bit, 300ksps ADCs with Differential
Track/Hold, and Internal Reference
General Description
The MAX11634–MAX11637 are serial 12-bit analog-to-
digital converters (ADCs) with an internal reference and
true differential track/hold. These devices feature on-chip
FIFO, scan mode, internal clock mode, internal averag-
ing, and AutoShutdown™. The maximum sampling rate is
300ksps using an external clock. The MAX11636/
MAX11637 have 8 input channels and the MAX11634/
MAX11635 have 4 input channels. These four devices
operate from either a +3V supply or a +5V supply, and
contain a 10MHz SPI™-/QSPI™-/MICROWIRE™-compati-
ble serial port.
The MAX11634–MAX11637 are available in a 16-pin
QSOP package. All four devices are specified over the
extended -40°C to +85°C temperature range.
System Supervision
Data-Acquisition Systems
Applications
Features
o Analog Multiplexer with True Differential Track/Hold
8-/4-Channel Single-Ended
4-/2-Channel True Differential
Unipolar or Bipolar Inputs
o Single Supply
2.7V to 3.6V (MAX11635/MAX11637)
4.75V to 5.25V (MAX11634/MAX11636)
o External Reference: 1V to VDD
o 16-Entry First-In/First-Out (FIFO)
o Scan Mode, Internal Averaging, and Internal Clock
o Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing
Codes Over Temperature
o 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible
Interface
o Small 16-Pin QSOP Package
Industrial Control Systems
Patient Monitoring
Data Logging
Instrumentation
Ordering Information/Selector Guide
PART
NUMBER OF INPUTS
MAX11634EEE+T
4 Single-Ended/
2 Differential
MAX11635EEE+T
4 Single-Ended/
2 Differential
MAX11636EEE+T
8 Single-Ended/
4 Differential
MAX11637EEE+T
8 Single-Ended/
4 Differential
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
SUPPLY VOLTAGE (V)
4.75 to 5.25
2.7 to 3.6
4.75 to 5.25
2.7 to 3.6
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 QSOP
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX11634 Datasheet

12-Bit 300ksps ADCs

No Preview Available !

12-Bit, 300ksps ADCs with Differential
Track/Hold, and Internal Reference
ABSOLUTE MAXIMUM RATINGS
VDD to GND ..............................................................-0.3V to +6V
CS, SCLK, DIN, EOC, DOUT to GND.........-0.3V to (VDD + 0.3V)
AIN0–AIN5, REF-/AIN6, CNVST/AIN7,
REF+ to GND.........................................-0.3V to (VDD + 0.3V)
Maximum Current into any Pin ............................................50mA
Continuous Power Dissipation (TA = +70°C)
QSOP (single-layer board)
(derate 8.3mW/°C above +70°C) .................................667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature ......................................................+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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
QSOP
Junction-to-Ambient Thermal Resistance (θJA)...............105°C/W
Junction-to-Case Thermal Resistance (θJC)......................37°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VDD = 2.7V to 3.6V (MAX11635/MAX11637), VDD = 4.75V to 5.25V (MAX11634/MAX11636), fSAMPLE = 300kHz, fSCLK = 4.8MHz
(external clock, 50% duty cycle), VREF = 2.5V (MAX11635/MAX11637), VREF = 4.096V (MAX11634/MAX11636) TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
DC ACCURACY (Note 3)
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
SYMBOL
CONDITIONS
RES
INL
DNL
No missing codes over temperature
(Note 4)
MIN TYP MAX UNITS
12 Bits
±1.0 LSB
±1.0 LSB
±0.5 ±4.0 LSB
±0.5 ±4.0 LSB
Offset Error Temperature
Coefficient
±2
ppm/°C
FSR
Gain Temperature Coefficient
±0.8
ppm/°C
Channel-to-Channel Offset
Matching
±0.1
LSB
DYNAMIC SPECIFICATIONS (30kHz sine-wave input, 300ksps, fSCLK = 4.8MHz)
Signal-to-Noise Plus Distortion
SINAD
MAX11635/MAX11637
MAX11634/MAX11636
Total Harmonic Distortion
THD
Up to the 5th MAX11635/MAX11637
harmonic
MAX11634/MAX11636
Spurious-Free Dynamic Range
SFDR
MAX11635/MAX11637
MAX11634/MAX11636
Intermodulation Distortion
IMD fIN1 = 29.9kHz, fIN2 = 30.2kHz
Full-Power Bandwidth
-3dB point
Full-Linear Bandwidth
S/(N + D) > 68dB
71
dB
73
-80
dBc
-88
81
dBc
89
76 dBc
1 MHz
100 kHz
2 _______________________________________________________________________________________


Part Number MAX11634
Description 12-Bit 300ksps ADCs
Maker Maxim Integrated
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MAX11634 Datasheet PDF






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