Rainbow-electronics MAX1326 Manual do Utilizador Página 2
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MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326
8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV
DD
= +5V, DV
DD
= +3V, AGND = DGND = 0V, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices, MAX1316/
MAX1317/MAX1318), MSV = AGND (bipolar devices, MAX1320/MAX1321/MAX1322/MAX1324/MAX1325/MAX1326), f
CLK
= 10MHz,
50% duty cycle, INTCLK/
EXTCLK = AGND (external clock), SHDN = DGND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
AV
DD
to AGND.........................................................-0.3V to +6V
DV
DD
to DGND.........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
CH0–CH7, I.C. to AGND (MAX1316/MAX1317/MAX1318)...±6.0V
CH0–CH7, I.C. to AGND (MAX1320/MAX1321/MAX1322).±16.5V
CH0–CH7, I.C. to AGND (MAX1324/MAX1325/MAX1326).±16.5V
INTCLK/EXTCLK to AGND.......................-0.3V to (AV
DD
+ 0.3V)
EOC, EOLC, WR, RD, CS to DGND.........-0.3V to (DV
DD
+ 0.3V)
CONVST, CLK, SHDN,
ALLON to DGND..................................-0.3V to (DV
DD
+ 0.3V)
MSV, REF
MS
, REF to AGND.....................-0.3V to (AV
DD
+ 0.3V)
REF+, COM, REF- to AGND.....................-0.3V to (AV
DD
+ 0.3V)
D0–D13 to DGND ....................................-0.3V to (DV
DD
+ 0.3V)
Maximum Current into Any Pin Except AV
DD
, DV
DD
,
AGND, DGND...............................................................±50mA
Continuous Power Dissipation
TQFP (derate 22.7mW/°C above +70°C)...................1818mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
STATIC PERFORMANCE (Note 1)
Resolution N 14 Bits
Integral Nonlinearity INL (Note 2)
±0.8 ±2.0
LSB
Differential Nonlinearity DNL No missing codes (Note 2)
±0.5
±1 LSB
Unipolar devices
±40
Offset Error
Bipolar devices
±40
LSB
Unipolar devices -4
Offset Drift
Bipolar devices -4
ppm/°C
Unipolar devices between all channels 35 80
Channel Offset Matching
Bipolar devices between all channels 25 60
LSB
Gain Error (Note 3) ±8
±40
LSB
Channel Gain-Error Matching Between all channels 25 LSB
Gain Temperature Coefficient 3
ppm/°C
DYNAMIC PERFORMANCE (at f
IN
= 100kHz, -0.4dB FS)
Unipolar
74.5
76
Signal-to-Noise Ratio SNR
Bipolar 75
76.5
dB
Unipolar
74.5
76
Signal-to-Noise and Distortion
Ratio
SINAD
Bipolar 75
76.5
dB
Spurious-Free Dynamic Range SFDR 83 93 dBc
Total Harmonic Distortion THD -90 -83 dBc
Channel-to-Channel Isolation 83 dB
ANALOG INPUTS (CH0–CH7)
MAX1316/MAX1317/MAX1318 0 +5
MAX1320/MAX1321/MAX1322 -5 +5
Input Voltage Range
MAX1324/MAX1325/MAX1326 -10
+10
V
- General Description 1
- Applications 1
- Features 1
- Ordering Information 1
- Selector Guide 1
- ABSOLUTE MAXIMUM RATINGS 2
- ELECTRICAL CHARACTERISTICS 2
- Pin Description 9
- Pin Description (continued) 10
- Detailed Description 13
- Internal Clock 14
- Applications Section 15
- Starting a Conversion 16
- = 200ns, f 17
- = 10MHz) 17
- Power-Up Reset 19
- Reference 19
- Transfer Functions 20
- Definitions 22
- Chip Information 23
- Typical Operating Circuits 24
- Pin Configurations 26
- Package Information 27
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