MAX11666AUB+ Maxim Integrated, MAX11666AUB+ Datasheet - Page 23

• Manufacturer Part Number: MAX11666AUB+
• Description: Analog to Digital Converters - ADC 1/2Ch 12-Bit 500ksps Low Power SPI
• Manufacturer: Maxim Integrated

Specifications of MAX11666AUB+

• Rohs: yes
• Number Of Channels: 2
• Architecture: SAR
• Conversion Rate: 500 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended
• Interface Type: SPI
• Operating Supply Voltage: 2.2 V to 3.6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: uMAX-10
• Maximum Power Dissipation: 707.3 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: 2.2 V to 3.6 V

For applications requiring lower throughput rates, the
user can reduce the clock frequency (f
the sample rate. Figure 11 shows the typical supply
current (I
500ksps devices. The part operates in normal mode and
Figure 11. Supply Current vs. Sample Rate (Normal Operating
Mode)
VDD
2.0
1.5
1.0
0.5
Supply Current vs. Sampling Rate
) as a function of sample rate (f
0
0
SUPPLY CURRENT vs. SAMPLING RATE
V
f
16 CYCLES/CONVERSIONS
SCLK
______________________________________________________________________________________
DD
= 3V
= VARIABLE
100
SAMPLING RATE (ksps)
200
300
400
SCLK
500
) to lower
S)
for the
Serial 12-/10-/8-Bit ADCs
Figure 12. Supply Current vs. Sample Rate (Device Powered
Down Between Conversions)
is never powered down. The user can also power down
the ADC between conversions by using the power-down
mode. Figure 12 shows for the 500ksps device that as
the sample rate is reduced, the device remains in the
power-down state longer and the average supply cur-
rent (I
500ksps, Low-Power,
VDD
) drops accordingly.
1.5
1.0
0.5
0
0
SUPPLY CURRENT vs. SAMPLING RATE
V
f
SCLK
DD
20
= 3V
= 8MHz
40
SAMPLING RATE (ksps)
60
80
100
120
140
160
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