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MAX1282BCUE+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23
MAX1282/MAX1283
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
4 _______________________________________________________________________________________
V
DD1
=
V
DD2
=
5.5V
V
DD1
= V
DD2
= 5V ±10%, midscale input
CONDITIONS
mA
2.5 4.0
IV
DD1
+
IV
DD2
Supply Current
V4.5 5.5
V
DD1,
V
DD2
Positive Supply Voltage
(Note 9)
1.3 2.0
0.9 1.5
µA2.0 10
mV±0.5 ±2.0PSRPower-Supply Rejection
UNITSMIN TYP MAXSYMBOLPARAMETER
Normal operating mode (Note 10)
Reduced-power mode (Note 11)
Fast power-down mode (Note 11)
Full power-down mode (Note 11)
ELECTRICAL CHARACTERISTICS—MAX1282 (continued)
(V
DD1
= V
DD2
= +4.5V to +5.5V, COM = GND, f
OSC
= 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), external
+2.5V at REF, REFADJ = V
DD1
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
ELECTRICAL CHARACTERISTICS—MAX1283
(V
DD1
= V
DD2
= +2.7V to +3.6V, COM = GND, f
OSC
= 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), external
+2.5V at REF, REFADJ = V
DD1
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
SINAD > 68dB
-3dB point
f = 150kHz, V
IN
= 2.5Vp-p
f
IN1
= 73kHz, f
IN2
= 77kHz
No missing codes over temperature
Up to the 5th harmonic
CONDITIONS
kHz
250
Full-Linear Bandwidth
MHz
3
Full-Power Bandwidth
dB
-78
Channel-to-Channel Crosstalk
(Note 4)
dB
76
IMDIntermodulation Distortion
dB
72
SFDRSpurious-Free Dynamic Range
dB
-70
THDTotal Harmonic Distortion
Bits
12
Resolution
dB
70
SINAD
Signal-to-Noise plus Distortion
Ratio
LSB
±0.2
Channel-to-Channel Offset-Error
Matching
ppm/°C
±1.6
Gain-Error Temperature
Coefficient
±1.0
LSB
±1.0
DNLDifferential Nonlinearity
LSB
±6.0
Offset Error
LSB
±6.0
Gain Error (Note 3)
UNITSMIN TYP MAXSYMBOLPARAMETER
POWER SUPPLY
LSB
INLRelative Accuracy (Note 2)
DC ACCURACY (Note 1)
DYNAMIC SPECIFICATIONS (100kHz sine-wave input, 2.5Vp-p, 400ksps, 6.4MHz clock, bipolar input mode)
MAX1282/MAX1283
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS—MAX1283 (continued)
(V
DD1
= V
DD2
= +2.7V to +3.6V, COM = GND, f
OSC
= 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), external
+2.5V at REF, REFADJ = V
DD1
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Normal operating mode
Normal operating mode
Normal operating mode
CONDITIONS
MHz
0.5 4.8
f
SCLK
Serial Clock Frequency
ps
<50
Aperture Jitter
ns
10
Aperture Delay
ns
625
t
ACQ
Track/Hold Acquisition Time
µs
3.3
t
CONV
Conversion Time (Note 5)
UNITSMIN TYP MAXSYMBOLPARAMETER
To power down the internal reference
For small adjustments, from 1.22V
0 to 0.75mA output load
On/off leakage current, V
CH_
= 0 or V
DD1
T
A
= +25°C
Bipolar, V
COM
or V
CH_
= V
REF
/2,
referenced to COM or CH_
Unipolar, V
COM
= 0
V/V
2.05
Buffer Voltage Gain
V
1.4 V
DD1
- 1.0
REFADJ Buffer Disable
Threshold
mV
±100
REFADJ Input Range
V
1.22
REFADJ Output Voltage
µF
0.01 10
Capacitive Bypass at REFADJ
µF
4.7 10
Capacitive Bypass at REF
mV/mA
0.1 2.0
Load Regulation (Note 7)
ppm/°C
±15
TC V
REF
REF Output Temperature
Coefficient
mA
15
REF Short-Circuit Current
V
2.480 2.500 2.520
V
REF
REF Output Voltage
pF18Input Capacitance
µA
±0.001 ±1
Multiplexer Leakage Current
±V
REF
/2
%
40 60
Duty Cycle
V
V
REF
V
CH_
Input Voltage Range, Single
Ended and Differential (Note 6)
V
IN
= 0 or V
DD2
In full power-down mode, f
SCLK
= 0
V
REF
= 2.500V, f
SCLK
= 0
V
REF
= 2.500V, f
SCLK
= f
MAX
(Note 8)
pF
15
C
IN
Input Capacitance
µA
±1
I
IN
Input Leakage
V
0.2
V
HYST
Input Hysteresis
V
0.8
V
INL
Input Low Voltage
V
2.0
V
INH
Input High Voltage
5
REF Input Current
320
µA
200 350
V
1.0 V
DD1
+
50mV
REF Input Voltage Range
V/V
2.05
Buffer Voltage Gain
CONVERSION RATE
ANALOG INPUTS (CH3–CH0, COM)
INTERNAL REFERENCE
EXTERNAL REFERENCE (reference buffer disabled, reference applied to REF)
DIGITAL INPUTS (DIN, SCLK, CS, SHDN)
MAX1282/MAX1283
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
6 _______________________________________________________________________________________
V
DD1
=
V
DD2
=
3.6V
I
SOURCE
= 0.5mA
V
DD1
= V
DD2
= 2.7V to 3.6V, midscale input
CONDITIONS
mA
2.5 3.5
IV
DD1 +
IV
DD2
Supply Current
V2.7 3.6
V
DD1,
V
DD2
VV
DD2
- 0.5VV
OH
Output Voltage High
Positive Supply Voltage
(Note 9)
1.3 2.0
Normal operating mode (Note 10)
Reduced-power mode (Note 11)
0.9 1.5Fast power-down mode (Note 11)
Full power-down mode (Note 11) µA2.0 10
mV±0.5 ±2.0PSRPower-Supply Rejection
UNITSMIN TYP MAXSYMBOLPARAMETER
I
SINK
= 5mA V0.4V
OL
Output Voltage Low
CS = V
DD2
µA±10I
L
Three-State Leakage Current
CS = V
DD2
pF15C
OUT
Three-State Output Capacitance
ELECTRICAL CHARACTERISTICS—MAX1283 (continued)
(V
DD1
= V
DD2
= +2.7V to +3.6V, COM = GND, f
OSC
= 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), external
+2.5V at REF, REFADJ = V
DD1
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
TIMING CHARACTERISTICS—MAX1282
(Figures 1, 2, 5, 6; V
DD1
= V
DD2
= +4.5V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF
CONDITIONS
ns
100
t
CSW
CS Pulse Width High
ns
65
t
STE
CS Fall to SSTRB Enable
ns
65
t
DOE
CS Fall to DOUT Enable
ns
10 65
t
STD
CS Rise to SSTRB Disable
ns
10 65
t
DOD
CS Rise to DOUT Disable
ns
80
t
STV
SCLK Rise to SSTRB Valid
ns
80
t
DOV
SCLK Rise to DOUT Valid
ns
62
t
CL
SCLK Pulse Width Low
ns
62
t
CH
ns
156
t
CP
SCLK Period
SCLK Pulse Width High
ns
10 20
t
STH
SCLK Rise to SSTRB Hold
ns
10 20
t
DOH
SCLK Rise to DOUT Hold
ns
35
t
CS1
CS Rise to SCLK Rise Ignore
ns
35
t
CSO
SCLK Rise to CS Fall Ignore
ns
35
t
DS
DIN to SCLK Setup
ns
0
t
DH
DIN to SCLK Hold
ns
35
t
CSS
CS Fall to SCLK Rise Setup
ns
0
t
CSH
SCLK Rise to CS Rise Hold
UNITSMIN TYP MAXSYMBOLPARAMETER
DIGITAL OUTPUTS (DOUT, SSTRB)
POWER SUPPLY
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23

MAX1282BCUE+

Mfr. #:
Buy MAX1282BCUE+
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 12-Bit 4Ch 400ksps 5.5V Precision ADC
Lifecycle:
New from this manufacturer.
Delivery:
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