MAX11156ETC+ Maxim Integrated, MAX11156ETC+ Datasheet - Page 17

• Manufacturer Part Number: MAX11156ETC+
• Description: Analog to Digital Converters - ADC 18Bit 500ksps 5V SAR ADC w/Internal Ref
• Manufacturer: Maxim Integrated

Specifications of MAX11156ETC+

• Rohs: yes
• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 500 KSPs
• Resolution: 18 bit
• Input Type: Pseudo-Differential
• Snr: 94.6 dB
• Interface Type: SPI
• Operating Supply Voltage: 2.3 V to 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TDFN-12
• Maximum Power Dissipation: 38.5 W
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1

MAX11156
This is an indication to the user that there are insufficient
SCLK falling edges in a given readout cycle.
provides a guide to aid in the selection of the appropriate
output interface mode for a given application.
CS No-Busy Indicator Mode
The CS no-busy indicator mode is ideally suited for
maximum throughput when a single MAX11156 is con-
nected to a SPI-compatible digital host. The connection
diagram is shown in
timing is provided in
A rising edge on CNVST completes the acquisition, initi-
ates the conversion, and forces DOUT to high impedance.
The conversion continues to completion irrespective of
the state of CNVST allowing CNVST to be used as a
select line for other devices on the board. If CNVST is
brought low during a conversion and held low throughout
the maximum conversion time, the MSB will be output at
the end of the conversion.
When the conversion is complete, the MAX11156
enters the acquisition phase. Drive CNVST low to out-
put the MSB onto DOUT. The remaining data bits are
then clocked by subsequent SCLK falling edges. DOUT
returns to high impedance after the 18th SCLK falling
edge, or when CNVST goes high.
www.maximintegrated.com
Figure
Figure
7.
6, and the corresponding
Table 5
Table 5. ADC Output Interface Mode
Selector Guide
Figure 6. CS No-Busy Indicator Mode Connection Diagram
CS Mode,
No-Busy
Indicator
CS Mode,
With Busy
Indicator
Daisy-Chain
Mode,
No-Busy
Indicator
Daisy-Chain
Mode,
With Busy
Indicator
MODE
MAX11156
with Internal Reference in TDFN
18-Bit, 500ksps, ±5V SAR ADC
CNVST
SCLK
Single or multiple ADCs connected to SPI-
compatible digital host. Ideally suited for
maximum throughput.
Single ADC connected to SPI-compatible
digital host with interrupt input. Ideally suited
for maximum throughput.
Multiple ADCs connected to a SPI-
compatible digital host. Ideally suited for
multichannel simultaneous sampled isolated
applications.
Multiple ADCs connected to a SPI-
compatible digital host with interrupt input.
Ideally suited for multichannel simultaneous
sampled isolated applications.
TYPICAL APPLICATION AND BENEFITS
DOUT
DIN
CONVERT
DATA IN
CONFIG
CLK
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DIGITAL HOST