MAX1400 Maxim, MAX1400 Datasheet - Page 3

• Manufacturer Part Number: MAX1400
• Description: %V / 18-Bit / Low-Power / Multichannel / Oversampling Sigma-Delta ADC
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V+ = +5V ±5%, V
wise noted. Typical values are at T
OFFSET DAC
ANALOG INPUTS/REFERENCE INPUTS (Specifications for AIN and REFIN, unless otherwise noted.)
Offset DAC Range (Note 6)
Offset DAC Resolution
Offset DAC Full-Scale Error
Offset DAC Zero-Scale Error
Additional Noise from Offset
DAC (Note 7)
Common-Mode Rejection
Normal Mode 50Hz Rejection
(Note 8)
Normal Mode 60Hz Rejection
(Note 8)
Common-Mode Voltage Range
(Note 9)
Absolute Voltage Range Input
Absolute and Common-Mode
AIN Voltage Range
DC Input Leakage Current
(Note 10)
AIN Input Current (Note 10)
AIN Input Capacitance
(Note 11)
AIN Differential Voltage Range
(Note 12)
PARAMETER
DD
________________________________________________________________________________________
= +2.7V to +5.25V, V
+5V, 18-Bit, Low-Power, Multichannel,
A
SYMBOL
= +25°C.)
CMR
NMR
NMR
Oversampling (Sigma-Delta) ADC
REFIN+
For filter notch 50Hz, ±0.02
MF1 = 0, MF0 = 0, f
Unipolar mode
Bipolar mode
Unipolar mode
Bipolar mode
Input referred
DAC code = 0000
At DC
For filter notch 60Hz, ±0.02
MF1 = 0, MF0 = 0, f
For filter notch 50Hz, ±0.02
MF1 = 0, MF0 = 0, f
For filter notch 60Hz, ±0.02
MF1 = 0, MF0 = 0, f
REFIN and AIN for BUFF = 0
REFIN and AIN for BUFF = 0
BUFF = 1
REFIN and AIN for
BUFF = 0
BUFF = 1
BUFF = 0
BUFF = 1, all gains
Unipolar input range (U/B bit = 1)
Bipolar input range
= +2.50V, REFIN- = AGND, f
CONDITIONS
CLKIN
CLKIN
CLKIN
CLKIN
(U/B bit = 0)
T
T
Gain = 1
Gain = 2
Gain = 4
Gain = 8, 16, 32, 64, 128
= 2.4576MHz (Note 8)
= 2.4576MHz (Note 8)
A
A
= 2.4576MHz
= 2.4576MHz
·
·
= +25°C
= T
f
·
·
f
NOTCH
NOTCH
f
f
NOTCH
NOTCH
MIN
CLKIN
,
to T
,
,
,
= 2.4576MHz, T
MAX
+ 200mV
V
V
- 30mV
V
-116.7
-58.35
MIN
AGND
AGND
AGND
-2.5
150
150
100
100
90
A
= T
0 to V
±V
MIN
TYP
16.7
8.35
gain
gain
40
34
38
45
60
30
REF
0
0
REF
to T
/
/
+ 30mV
MAX
116.7
58.35
MAX
- 1.5
V+
2.5
V+
V+
10
10
, unless other-
UNITS
µV
%FSR
%FSR
%FSR
%FSR
dB
dB
dB
pA
nA
nA
pF
RMS
V
V
V
V
3