MAX1179CCUI-T Maxim Integrated, MAX1179CCUI-T Datasheet - Page 9

• Manufacturer Part Number: MAX1179CCUI-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1179CCUI-T

• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 135 KSPs
• Resolution: 16 bit
• Input Type: Single-Ended
• Snr: 91 dB
• Interface Type: Parallel
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Package / Case: TSSOP-28
• Maximum Power Dissipation: 1026 mW
• Minimum Operating Temperature: 0 C
• Number Of Converters: 1
• Voltage Reference: 4.096 V

Figure 4. Equivalent Input Circuit
Figure 5. Selecting Standby Mode
completing a conversion. The reference and reference
buffer require a minimum of 12ms (C
C
The state of R/C during the second falling edge of CS
selects which power-down mode the MAX1179/
MAX1187/MAX1189 enters upon conversion comple-
tion. Holding R/C low causes the MAX1179/MAX1187/
MAX1189 to enter standby mode. The reference and
buffer are left on after the conversion completes. R/C
high causes the MAX1179/MAX1187/MAX1189 to enter
shutdown mode and power down the reference and
REF
= 10µF) to power up and settle from shutdown.
AIN
R2
MAX1187
16-Bit, 135ksps, Single-Supply ADCs with
_______________________________________________________________________________________
R3
161Ω
3.4kΩ
REF AND
TRACK
BUFFER
POWER
EOC
R/C
CS
HOLD
S1
TRACK
REFADJ
C
30pF
HOLD
ACQUISITION
S1, S2 = T/H SWITCH
S3 = POWER-DOWN
(MAX1179/MAX1189
ONLY)
S2
= 0.1µF,
HOLD
Bipolar Analog Input Range
T/H OUT
CONVERSION
AIN
buffer after conversion (see Figures 5 and 6). Set the
voltage at REF high during the second falling edge of
CS to realize the lowest current operation.
While in standby mode, the supply current is less than
3.7mA (typ). The next falling edge of CS with R/C low
causes the MAX1179/MAX1187/MAX1189 to exit stand-
by mode and begin acquisition. The reference and ref-
erence buffer remain active to allow quick turn-on time.
R2 = 7.85kΩ (MAX1189)
OR 3.92kΩ (MAX1179/MAX1187)
R3 = 5.45kΩ (MAX1189)
OR 17.79kΩ (MAX1179/MAX1187)
MAX1179/MAX1189
R2
R3
DATA
OUT
161Ω
POWER-
DOWN
S3
3.4kΩ
TRACK
HOLD
S1
REF
TRACK
C
30pF
HOLD
Standby Mode
S2
HOLD
T/H OUT
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