参数资料
型号: MAX1494CCJ+T
厂商: Maxim Integrated
文件页数: 4/34页
文件大小: 0K
描述: IC ADC W/LCD DRIVER 32-TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,000
显示器类型: LCD
配置: 7 段 + 2 个信号器
接口: 串行
数字或字符: A/D,4.5 位数字
电流 - 电源: 960µA
电源电压: 2.7 V ~ 5.25 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 带卷 (TR)
3.5- and 4.5-Digit, Single-Chip ADCs
with LCD Drivers
ELECTRICAL CHARACTERISTICS (continued)
(V AVDD = V DVDD = 2.7V to 5.25V, V GND = 0V, V REF+ - V REF- = 2.048V (external reference). Internal clock mode, unless otherwise noted.
All specifications are at T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CHARGE PUMP (C NEG = 0.1μF)
Output Voltage
V NEG
-2.60
-2.42
-2.30
V
DIGITAL INPUTS (SCLK, DIN, CS , CLK)
Input Current
I IN
V IN = 0V or V DVDD
-10
+10
μA
Input Low Voltage
Input High Voltage
V INL
V INH
0.7 x V DVDD
0.3 x
V DVDD
V
V
Input Hysteresis
V HYST
V DVDD = 3.0V
200
mV
DIGITAL OUTPUTS (DOUT, EOC )
Output Low Voltage
Output High Voltage
V OL
V OH
I SINK = 1mA
I SOURCE = 200μA
0.8 x V DVDD
0.4
V
V
Three-State Leakage Current
Three-State Output Capacitance
I L
C OUT
DOUT only
DOUT only
-10
15
+10
μA
pF
POWER SUPPLY
AVDD Voltage
DVDD Voltage
Power-Supply Rejection AVDD
Power-Supply Rejection DVDD
V AVDD
V DVDD
PSRR A
PSRR D
(Note 7)
(Note 7)
2.70
2.70
80
100
5.25
5.25
V
V
dB
dB
AVDD Current (Notes 8, 9)
I AVDD
V AVDD = 5V
Standby
580
240
660
380
μA
V DVDD = 5V
260
320
DVDD Current (Notes 8, 9)
I DVDD
V DVDD = 3.3V
130
180
μA
LCD DRIVER
Standby
10
20
RMS Segment On Voltage
RMS Segment Off Voltage
MAX1492
MAX1494
MAX1492
MAX1494
1.92 x
V DVDD
1.92 x
(V DVDD - V DISP )
1/3 x
V DVDD
1/3 x
(V DVDD - V DISP )
V
V
Display Voltage Setup Resistor
Display Multiplex Rate
LCD Data-Update Rate
R DISP
MAX1494 only
157.5
107
2.5
k ?
Hz
Hz
4
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