MAX1261ACEI Maxim Integrated, MAX1261ACEI Datasheet - Page 14

• Manufacturer Part Number: MAX1261ACEI
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1261ACEI

• Number Of Channels: 8/4
• Architecture: SAR
• Conversion Rate: 250 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended/Pseudo-Differential
• Snr: 70 dB
• Interface Type: Parallel
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Package / Case: QSOP-28
• Maximum Power Dissipation: 667 mW
• Minimum Operating Temperature: 0 C
• Number Of Converters: 1
• Voltage Reference: 2.5 V

250ksps, +3V, 8-/4-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
Figure 6b. External Clock and WR Timing (External Acquisition Mode)
Table 2. Control Byte Format
Table 3. Channel Selection for Single-Ended Operation (SGL/DIF = 1)
*Channels CH4–CH7 apply to MAX1261 only.
14
D7 (MSB)
A2
CLK
CLK
WR
WR
0
0
0
0
1
1
1
1
______________________________________________________________________________________
PD1
A1
0
0
1
1
0
0
1
1
ACQMOD = 1
ACQMOD = 1
PD0
D6
A0
0
1
0
1
0
1
0
1
ACQUISITION STARTS
ACQUISITION STARTS
CH0
t
t
DH
DH
ACQMOD
+
D5
CH1
+
SGL/DIF
WR GOES HIGH WHEN CLK IS HIGH.
WR GOES HIGH WHEN CLK IS LOW.
D4
CH2
+
CH3
+
UNI/BIP
D3
ACQUISITION ENDS
CH4*
+
t
CWH
ACQUISITION ENDS
ACQMOD = 0
D2
A2
CH5*
+
ACQMOD = 0
t
CWS
CH6*
+
D1
A1
CONVERSION STARTS
CONVERSION STARTS
CH7*
+
D0 (LSB)
A0
COM
-
-
-
-
-
-
-
-