參數(shù)資料
型號(hào)： MAX1496EPI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： 3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers
中文描述： 1-CH PROPRIETARY METHOD ADC, PDIP28
封裝： 0.600 MM, PLASTIC, MS-011, DIP-28
文件頁(yè)數(shù)： 5/24頁(yè)
文件大?。?/td> 907K
代理商： MAX1496EPI
M
3.5- and 4.5-Digit, Single-Chip ADCs
with LED Drivers
_______________________________________________________________________________________
5
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LED DRIVERS
(Table 5)
LED Supply Voltage
LED Shutdown Supply Current
V
LED
I
SHDN
2.70
5.25
10
V
μA
LED driver shutdown mode
LED Supply Current
I
LED
Seven segments and decimal point on,
R
ISET
= 25k
MAX1447/MAX1498
MAX1496
176
180
mA
512
640
25
0.178
Display Scan Rate
f
OSC
Hz
Segment Current Slew Rate
DIG_ Voltage Low
I
SEG
/
t
V
DIG
mA/μs
V
I
DIG_
= 176mA
0.300
Segment Drive Source Current
Matching
I
SEG
3
±10
%
Segment Drive Source Current
Interdigit Blanking Time
I
SEG
V
LED
- V
SEG
= 0.6V, R
ISET
= 25k
16.0
21.5
4
25.5
mA
μs
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= V
DD
= +2.7V to +5.25V, GND = 0, V
LED
= +2.7V to +5.25V, GLED = 0, V
REF+
- V
REF-
= 2.048V (external reference),
C
REF+
= C
REF-
= 0.1μF, C
VNEG
= 0.1μF. Internal clock mode, unless otherwise noted. All specifications are at T
A
= T
MIN
to T
MAX
.
Typical values are at T
A
= +25°C, unless otherwise noted.)
Note 1:
Integral nonlinearity is the deviation of the analog value at any code from its theoretical value after nulling the gain error and
offset error.
Note 2:
Offset calibrated.
Note 3:
Offset nulled.
Note 4:
Drift error is eliminated by recalibration at the new temperature.
Note 5:
The input voltage range for the analog inputs is given with respect to the voltage on the negative input of the differential pair.
Note 6:
V
AIN
+ or V
AIN
- = -2.2V to +2.2V. V
REF
+ or V
REF
- = -2.2V to +2.2V. All input structures are identical. Production tested on
AIN+ and REF+ only.
Note 7:
Power-supply currents are measured with all digital inputs at either GND or DV
DD
.
Note 8:
Measured at DC by changing the power-supply voltage from 2.7V to 5.25V and measuring the effect on the conversion
error with external reference. PSRR at 50Hz and 60Hz exceeds 120dB with filter notches at 50Hz and 60Hz (Figure 2).
Note 9:
LED drivers are disabled.
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