MAX11131AUI+ Maxim Integrated, MAX11131AUI+ Datasheet - Page 14

• Manufacturer Part Number: MAX11131AUI+
• Description: Analog to Digital Converters - ADC 12Bit 16 Ch 3Msps Serial ADC
• Manufacturer: Maxim Integrated

Specifications of MAX11131AUI+

• Rohs: yes
• Number Of Channels: 16
• Architecture: SAR
• Conversion Rate: 3 MSPs
• Resolution: 12 bit
• Input Type: Differential
• Snr: 72.3 dB
• Interface Type: 3-Wire Serial, Microwire, QSPI, SPI
• Operating Supply Voltage: 3 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-28
• Maximum Power Dissipation: 2162 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: 1 V

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 converters
(ADC). These devices feature scan mode, internal aver-
aging to increase SNR, and AutoShutdown.
The external clock mode features the SampleSet technol-
ogy, a user-programmable analog input channel sequenc-
er. The user may define and load a unique sequencing
pattern into the ADC allowing both high- and low-frequen-
cy inputs to be converted without interface activity. This
feature frees the controlling unit for other tasks while lower-
ing overall system noise and power consumption.
The MAX11129–MAX11132 includes internal clock. The
internal clock mode features an integrated FIFO, allowing
Maxim Integrated
Detailed Description
AIN15
AIN0
AIN1
3Msps, Low-Power, Serial 12-/10-Bit,
MAX11129–MAX11132
MUX
I/P
V
OSCILLATOR
DD
OVDD
data to be sampled at high speed and then held for read-
out at any time or at a lower clock rate. Internal averaging
is also supported in this mode improving SNR for noisy
input signals. All input channels are configurable for sin-
gle-ended, fully differential or pseudo-differential inputs
in unipolar or bipolar mode. The MAX11129–MAX11132
operate from a 2.35V to 3.6V supply and consume only
15mW at 3Msps.
The MAX11129–MAX11132 include AutoShutdown, fast
wake-up, and a high-speed 3-wire serial interface. The
devices feature full power-down mode for optimal power
management.
Data is converted from analog voltage sources in a
variety of channel and data-acquisition configurations.
Microprocessor (FP) control is made easy through a 3-wire
SPI-/QSPI-/MICROWIRE-compatible serial interface.
REF+
CS
CONTROL LOGIC
REF+
SEQUENCER
ADC
MAX11129–MAX11132
AND
SCLK
REF-
DOUT
REF-
8-/16-Channel ADCs
CS
SCLK
DIN
DOUT
CNVST
EOC
Functional Diagram
14