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MAX1277 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX1277
Description  1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1277 Datasheet(HTML) 3 Page - Maxim Integrated Products

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1.5Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +3.6V, VL = VDD, fSCLK = 24MHz, 50% duty cycle, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG INPUTS (AIN+, AIN-)
AIN+ - AIN-, MAX1277
0
VREF
Differential Input Voltage Range
VIN
AIN+ - AIN-, MAX1279
-VREF / 2
+VREF / 2
V
Absolute Input Voltage Range
0
VDD
V
DC Leakage Current
±1
µA
Input Capacitance
Per input pin
16
pF
Input Current (Average)
Time averaged at maximum throughput rate
75
µA
REFERENCE OUTPUT (REF)
REF Output Voltage Range
Static, TA = +25°C
2.038
2.048
2.058
V
Voltage Temperature Coefficient
±50
ppm/°C
ISOURCE = 0 to 2mA
0.35
Load Regulation
ISINK = 0 to 100µA
1.0
mV/mA
Line Regulation
VDD = 2.7V to 3.6V, static
0.25
mV/V
DIGITAL INPUTS (SCLK, CNVST)
Input Voltage Low
VIL
0.3 x VL
V
Input Voltage High
VIH
0.7 x VL
V
Input Leakage Current
IIL
0.05
±10
µA
DIGITAL OUTPUT (DOUT)
Output Load Capacitance
COUT
For stated timing performance
30
pF
Output Voltage Low
VOL
ISINK = 5mA, VL
≥ 1.8V
0.4
V
Output Voltage High
VOH
ISOURCE = 1mA, VL
≤ 1.8V
VL - 0.5V
V
Output Leakage Current
IOL
Output high impedance
±0.2
±10
µA
POWER REQUIREMENTS
Analog Supply Voltage
VDD
2.7
3.6
V
Digital Supply Voltage
VL
1.8
VDD
V
Static, fSCLK = 24MHz
6
8
Static, no SCLK
5
7
Analog Supply Current,
Normal Mode
IDD
Operational, 1.5Msps
7
9
mA
fSCLK = 24MHz
2
Analog Supply Current,
Partial Power-Down Mode
IDD
No SCLK
2
mA
fSCLK = 24MHz
1
Analog Supply Current,
Full Power-Down Mode
IDD
No SCLK
0.3
1
µA
Operational, full-scale input at 1.5Msps
0.3
1
Static, fSCLK = 24MHz
0.15
0.5
Partial/full power-down mode,
fSCLK = 24MHz
0.1
0.3
mA
Digital Supply Current (Note 8)
Static, no SCLK, all modes
0.1
1
µA
Positive-Supply Rejection
PSR
VDD = 3V +20% -10%, full-scale input
±0.2
±3.0
mV


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