MAX1228BCEP+ Maxim Integrated Products, MAX1228BCEP+ Datasheet - Page 14

• Manufacturer Part Number: MAX1228BCEP+
• Description: IC ADC 12-BIT 300KSPS 20-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1228BCEP+

• Number Of Bits: 12
• Sampling Rate (per Second): 300k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 727mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
Table 3. Setup Register*
14
* See below for bit details.
BIT NAME
DIFFSEL1 DIFFSEL0
DIFFSEL1
DIFFSEL0
REFSEL1
REFSEL1
REFSEL0
CKSEL1
CKSEL0
CKSEL1
—
—
______________________________________________________________________________________
0
0
1
1
0
0
1
1
0
0
1
1
REFSEL0
CKSEL0
7 (MSB)
0 (LSB)
BIT
0
1
0
1
6
5
4
3
2
1
0
1
0
1
0
1
0
1
Set to zero to select setup register.
Set to 1 to select setup register.
Clock mode and CNVST configuration. Resets to 1 at power-up.
Clock mode and CNVST configuration.
Reference mode configuration.
Reference mode configuration.
Unipolar/bipolar mode register configuration for differential mode.
Unipolar/bipolar mode register configuration for differential mode.
No data follows the setup byte. Unipolar mode and bipolar mode registers remain unchanged.
No data follows the setup byte. Unipolar mode and bipolar mode registers remain unchanged.
One byte of data follows the setup byte and is written to the unipolar mode register.
One byte of data follows the setup byte and is written to the bipolar mode register.
VOLTAGE REFERENCE
CONVERSION CLOCK
External (4.8MHz max)
External single ended
External differential
Internal
Internal
Internal
Internal
Internal
Reference off; no wake-up delay.
Reference off after scan; need
wake-up delay.
Reference off; no wake-up delay.
Reference always on; no wake-up
delay.
Externally timed through CNVST
Externally timed through SCLK
ACQUISITION/SAMPLING
Internally timed
Internally timed
AutoShutdown
FUNCTION
FUNCTION
CNVST CONFIGURATION
REF- CONFIGURATION
AIN15/11/7
AIN15/11/7
AIN14/10/6
AIN14/10/6
AIN14/10/6
CNVST
CNVST
REF-