MAX1149BEUP Maxim Integrated Products, MAX1149BEUP Datasheet - Page 3

• Manufacturer Part Number: MAX1149BEUP
• Description: ADC / DAC Multichannel
• Manufacturer: Maxim Integrated Products

Specifications of MAX1149BEUP

• Lead Free Status / Rohs Status: No

ELECTRICAL CHARACTERISTICS (continued)
(V
duty cycle), 18 clocks/conversion (116ksps), V
MAX1148), external 2.500V reference at REF (MAX1147/MAX1149), T
T
INTERNAL REFERENCE (C
REF Output Voltage
REF Short-Circuit Current
V
Load Regulation
Capacitive Bypass at REF
Capacitive Bypass at REFADJ
REFADJ Output Voltage
REFADJ Input Range
REFADJ Logic High
Reference Buffer Voltage Gain
A
Throughput Rate
T/H Acquisition Time
Aperture Delay
Aperture Jitter
Serial Clock Frequency
Internal Clock Frequency
ANALOG INPUTS (CH0–CH7, COM)
Input Voltage Range, Single-
Ended and Differential (Note 6)
Multiplexer Leakage Current
Input Capacitance
DD
REF
= +25°C.)
= 5V (MAX1146/MAX1148), V
Tempco (Note 7)
PARAMETER
_______________________________________________________________________________________
REF
= 2.2µF, C
DD
SYMBOL
f SAMPLE
= 3.3V (MAX1147/MAX1149), SHDN = V
I
f SCLK
t ACQ
REFSC
V
t AD
t AJ
REF
REFADJ
Multichannel, True-Differential,
MAX1147/MAX1149, T
MAX1146/MAX1148, T
REF = DGND
MAX114_ BC _ _
MAX114_ BE _ _
0 to 0.2mA output load (Note 8)
Pull REFADJ high to disable the internal
bandgap reference and reference buffer
MAX1147/MAX1149
MAX1146/MAX1148
Internal clock mode,
f SCLK = 2.1MHz
External clock mode,
f SCLK = 2.1MHz
REFADJ
External clock mode
Internal clock mode
Unipolar, COM = 0
Bipolar, COM = V REF / 2, single-ended
On/off-leakage current, V CH _ = 0 to V DD
= 0.01µF)
= V
DD
CONDITIONS
, C
REF
A
= T
A
A
18 clocks/conversion
24 clocks/conversion
18 clocks/conversion
24 clocks/conversion
= 2.2µF, external +4.096V reference at REF (MAX1146/
= +25°C
= +25°C
MIN
to T
DD
Serial, 14-Bit ADCs
, V
MAX
COM
, unless otherwise noted. Typical values are at
= 0, f
SCLK
0.25V
2.480
4.076
V
0.01
MIN
1.4
0.1
DD
0
0
2
-
= 2.1MHz, external clock (50%
±0.01
2.500
4.096
1.250
2.000
3.277
TYP
±30
±40
±18
<50
2.1
2.0
20
18
±V REF / 2
116.66
87.50
V REF
2.520
4.116
MAX
60.3
51.5
±50
±60
2.1
2.1
±1
20
ppm/°C
UNITS
ksps
MHz
MHz
mA
mV
mV
V/V
µA
pF
µs
ns
ps
µF
µF
V
V
V
V
3