MAX11131 ADCs Datasheet

MAX11131 Datasheet PDF, Equivalent


Part Number

MAX11131

Description

8-/16-Channel ADCs

Manufacture

Maxim Integrated

Total Page 30 Pages
Datasheet
Download MAX11131 Datasheet


MAX11131
EVALUATION KIT AVAILABLE
MAX11129–MAX11132
3Msps, Low-Power, Serial 12-/10-Bit,
8-/16-Channel ADCs
General Description
Benefits and Features
The MAX11129–MAX11132 are 12-/10-bit with external
reference and industry-leading 1.5MHz, full linear band-
width, high speed, low-power, serial output successive
approximation register (SAR) analog-to-digital convert-
ers (ADCs). The MAX11129–MAX11132 include both
internal and external clock modes. These devices feature
scan mode in both internal and external clock modes.
The internal clock mode features internal averaging to
increase SNR. The external clock mode features the
SampleSetK technology, a user-programmable analog
input channel sequencer. The SampleSet approach
provides greater sequencing flexibility for multichannel
applications while alleviating significant microcontroller
or DSP (controlling unit) communication overhead.
The internal clock mode features an integrated FIFO
allowing data to be sampled at high speeds and then held
for readout at any time or at a lower clock rate. Internal
averaging is also supported in this mode improving SNR
for noisy input signals. The devices feature analog input
channels that can be configured to be single-ended
inputs, fully differential pairs, or pseudo-differential inputs
with respect to one common input. The MAX11129–
MAX11132 operate from a 2.35V to 3.6V supply and con-
sume only 15.2mW at 3Msps.
The MAX11129–MAX11132 include AutoShutdownK,
fast wake-up, and a high-speed 3-wire serial interface.
The devices feature full power-down mode for optimal
power management.
The 48MHz, 3-wire serial interface directly connects to
SPI, QSPIK, and MICROWIREM devices without external
logic.
Excellent dynamic performance, low voltage, low power,
ease of use, and small package size make these convert-
ers ideal for portable battery-powered data-acquisition
applications, and for other applications that demand low
power consumption and small space.
The MAX11129–MAX11132 are available in 28-pin, 5mm
x 5mm, TQFN packages and the MAX11131 is available
in a 28-pin TSSOP package. All devices operate over the
-40NC to +125NC temperature range.
SampleSet and AutoShutdown are trademarks of Maxim
Integrated Products, Inc.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National
Semiconductor Corporation.
S Scan Modes, Internal Averaging, and Internal
Clock
S 16-Entry First-In/First-Out (FIFO)
S SampleSet: User-Defined Channel Sequence with
Maximum Length of 256
S Analog Multiplexer with True Differential
Track/Hold
16-/8-Channel Single-Ended
8-/4-Channel Fully-Differential Pairs
15-/8-Channel Pseudo-Differential Relative to
a Common Input
S Two Software-Selectable Bipolar Input Ranges
QVREF+/2, QVREF+
S Flexible Input Configuration Across All Channels
S High Accuracy
Q1 LSB INL, Q1 LSB DNL, No Missing Codes
Over Temperature Range
S 70dB SINAD Guaranteed at 500kHz Input
Frequency
S 1.5V to 3.6V Wide Range I/O Supply
Allows the Serial Interface to Connect Directly
to 1.8V, 2.5V, or 3.3V Digital Systems
S 2.35V to 3.6V Supply Voltage
S Longer Battery Life for Portable Applications
Low Power
15.2mW at 3Msps with 3V Supplies
2µA Full-Shutdown Current
S External Differential Reference (1V to VDD)
S 48MHz, 3-Wire SPI-/QSPI-/MICROWIRE-/DSP-
Compatible Serial Interface
S Wide -40NC to +125NC Operation
S Space-Saving, 28-Pin, 5mm x 5mm TQFN
Packages
S 3Msps Conversion Rate, No Pipeline Delay
S 12-/10-Bit Resolution
Applications
High-Speed Data Acquisition Systems
High-Speed Closed-Loop Systems
Industrial Control Systems
Medical Instrumentation
Battery-Powered Instruments
Portable Systems
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maximintegrated.com/MAX11129.related.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6026; Rev 5; 9/12

MAX11131
MAX11129–MAX11132
3Msps, Low-Power, Serial 12-/10-Bit,
8-/16-Channel ADCs
ABSOLUTE MAXIMUM RATINGS
VDD to GND..............................................................-0.3V to +4V
OVDD, AIN0–AIN13, CNVST/AIN14, REF+, REF-/AIN15
to GND.......................-0.3V to the lower of (VDD + 0.3V) and +4V
CS, SCLK, DIN, DOUT, EOC TO GND...... -0.3V to the Lower of
(VOVDD + 0.3V) and +4V
DGND to GND.......................................................-0.3V to +0.3V
Input/Output Current (all pins)............................................50mA
Continuous Power Dissipation (TA = +70NC)
TQFN (derate 34.4mW/NC above +70NC)..................2758mW
TSSOP (derate 27mW/NC above +70NC)...................2162mW
Operating Temperature Range......................... -40NC to +125NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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)
TQFN
Junction-to-Ambient Thermal Resistance (BJA)............29NC/W
Junction-to-Case Thermal Resistance (BJC)...................2NC/W
TSSOP
Junction-to-Ambient Thermal Resistance (BJA)............37NC/W
Junction-to-Case Thermal Resistance (BJC)...................2NC/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.maximintegrated.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS (MAX11131/MAX11132)
(VDD = 2.35V to 3.6V, VOVDD = 1.5V to 3.6V, fSAMPLE = 3Msps, fSCLK = 48MHz, 50% duty cycle, VREF+ = VDD, TA = -40NC to +125NC,
unless otherwise noted. Typical values are at TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
DC ACCURACY (Notes 3 and 4)
Resolution
RES 12 bit
Integral Nonlinearity
INL
Differential Nonlinearity
DNL No missing codes
Offset Error
Gain Error
(Note 5)
Offset Error Temperature
Coefficient
OETC
Gain Temperature Coefficient
Channel-to-Channel Offset
Matching
GETC
Line Rejection
PSR (Note 6)
DYNAMIC PERFORMANCE (500kHz, input sine wave) (Notes 3 and 7)
Signal-to-Noise Plus Distortion
SINAD
Signal-to-Noise Ratio
SNR
Total Harmonic Distortion
(Up to the 5th Harmonic)
THD
Spurious-Free Dynamic Range
SFDR
Intermodulation Distortion
IMD f1 = 398.4375kHz, f2 = 275.8125kHz
MIN
12
70
70
79
TYP
-0.1
+0.3
±2
±0.8
±0.5
±0.5
72.2
72.3
-88
90
-85
MAX
UNITS
±1.0
±1.0
±4.0
±4.0
±2
Bits
LSB
LSB
LSB
LSB
ppm/NC
ppm/NC
LSB
LSB/V
dB
dB
-78 dB
dB
dB
Maxim Integrated
  2


Features EVALUATION KIT AVAILABLE MAX11129–MAX 11132 3Msps, Low-Power, Serial 12-/10-B it, 8-/16-Channel ADCs General Descrip tion Benefits and Features The MAX111 29–MAX11132 are 12-/10-bit with exter nal reference and industry-leading 1.5M Hz, full linear bandwidth, high speed, low-power, serial output successive app roximation register (SAR) analog-to-dig ital converters (ADCs). The MAX11129– MAX11132 include both internal and exte rnal clock modes. These devices feature scan mode in both internal and externa l clock modes. The internal clock mode features internal averaging to increase SNR. The external clock mode features the SampleSetK technology, a user-progr ammable analog input channel sequencer. The SampleSet approach provides greate r sequencing flexibility for multichann el applications while alleviating signi ficant microcontroller or DSP (controll ing unit) communication overhead. The i nternal clock mode features an integrat ed FIFO allowing data to be sampled at high speeds and then held for .
Keywords MAX11131, datasheet, pdf, Maxim Integrated, 8-/16-Channel, ADCs, AX11131, X11131, 11131, MAX1113, MAX111, MAX11, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)