MAX1414CAI+ Maxim Integrated Products, MAX1414CAI+ Datasheet - Page 39

• Manufacturer Part Number: MAX1414CAI+
• Description: IC DAS 16BIT LP 28-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Data Acquisition System (DAS)r

Specifications of MAX1414CAI+

• Resolution (bits): 16 b
• Sampling Rate (per Second): 60
• Data Interface: Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Number Of Converters: 1
• Resolution: 16 bit
• Interface Type: Serial (4-Wire, SPI, QSPI, Microwire)
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Power Dissipation: 762 mW
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

tor spreads the transient-load current from the sampler
over time due to the RC time constant of the circuit.
However, an improperly chosen series resistance can
hinder performance in high-resolution converters. The
settling time of the RC network can limit the speed at
which the converter can operate properly, or reduce
the settling accuracy of the sampler. In practice, this
means ensuring that the RC time constant, resulting
from the product of the driving source impedance and
the capacitance presented by both the device’s input
and any external capacitance is sufficiently small to
allow settling to the desired accuracy. Table 10 sum-
marizes the maximum allowable series resistance vs.
Table 9. Power States of Individual Blocks at Different Modes of Operation
x = powered-up
N/A = programming the parts into the wake-up mode would not alter the content of these blocks
Table 10. REXT, CEXT Values for Less than 16-Bit Gain Error in Unbuffered Mode
Serial Interface
Wake-Up Circuitry
Crystal Oscillator
RTC with Alarm
RESET Voltage Monitor
Low V
Master Bias Circuit
PLL
FOUT
SHDN = High
DAC1
DAC2
Bandgap
Bandgap Buffer
Signal Detect Comparator
ADC Multiplexer
ADC Input Buffers
ADC
PGA GAIN
DD
(V/V)
CIRCUIT BLOCKS
1
2
Voltage Monitor
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
______________________________________________________________________________________
C
EXT
194
100
= 0pF
SLEEP
—
—
—
—
—
—
—
—
—
—
—
—
—
x
x
x
x
x
C
EXT
56
30
= 50pF
EXTERNAL RESISTANCE R
STANDBY
—
—
—
—
—
—
—
—
x
x
x
x
x
x
x
x
x
x
external shunt capacitance for each different gain set-
ting in order to ensure 16-bit performance in unbuffered
mode (for 60sps conversion rate).
Upon power-up, the MAX1407/MAX1408/MAX1409/
MAX1414 are in Standby mode. At this point, the ADC
register default settings are set for a normal ADC conver-
sion (MODE = 0), conversion rate of 30Hz (RATE = 0),
gain of 1/3 V/V (GAIN [00]), input buffers bypassed and
powered down (BUFP = BUFN = 0), and unipolar mode
C
EXT
= 100pF
33
16
POWER MODES
Performing a Conversion or Offset-
IDLE
—
—
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
EXT
(kΩ)
C
EXT
Calibration with the ADC
= 200pF
19
9
RUN
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
WA K E- U P EVEN T
C
EXT
4.5
= 500pF
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
9
x
x
x
x
x
x
x
x
x
x
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