MAX1248 Maxim, MAX1248 Datasheet - Page 15

• Manufacturer Part Number: MAX1248
• Description: 2x4-Channel / Simultaneous-Sampling 14-Bit DAS
• Manufacturer: Maxim

Figure 11a. Timing Diagram Power-Down Modes, External Clock
Table 4. Typical Power-Up Delay Times
Figure 11b. Timing Diagram Power-Down Modes, Internal Clock
REFERENCE
CLOCK
MODE
MODE
DOUT
SHDN
BUFFER
Disabled
Disabled
Enabled
Enabled
Enabled
Enabled
DIN
SSTRB
CLOCK
MODE
MODE
DOUT
DIN
S X X X X X 1 1
S X X X X X 1 0
______________________________________________________________________________________
REFERENCE-BUFFER
+2.7V to +5.25V, Low-Power, 4-Channel,
COMPENSATION
External
External
SETS EXTERNAL
CLOCK MODE
Internal
Internal
MODE
10+2 DATA BITS
—
—
POWERED UP
CONVERSION
SETS INTERNAL
CLOCK MODE
POWERED UP
Serial 10-Bit ADCs in QSOP-16
CAPACITOR
EXTERNAL
DATA VALID
S
VREF
X
(µF)
4.7
4.7
X
—
—
—
—
X
X
X
0 0
INTERNAL
SETS SOFTWARE
POWER-DOWN
S
10+2 DATA BITS
X
POWER-DOWN
X
X
X
MODE
Fast
Fast
Fast
X
Full
Full
Full
0 0
POWER-DOWN
SETS
POWER-DOWN
SOFTWARE
CONVERSION
SETS EXTERNAL
CLOCK MODE
S
X X X X X
See Figure 13c
See Figure 13c
POWERED UP
POWER-UP
DELAY
(µs)
300
1 1
5
2
2
DATA VALID
POWER-DOWN
VALID
DATA
HARDWARE
EXTERNAL
POWER-
INVALID
DOWN
DATA
SAMPLING RATE
MAXIMUM
(ksps)
S
133
133
133
133
POWERED UP
POWERED UP
26
26
15