Datasheet

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ADS1232
ADS1234
SBAS350F – JUNE 2005 – REVISED FEBRUARY 2008
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= – 40 ° C to +105 ° C, AVDD = DVDD = VREFP = +5V, and VREFN = AGND, unless otherwise noted.
ADS1232, ADS1234
PARAMETER CONDITIONS MIN TYP MAX UNIT
Digital
Logic Levels
V
IH
0.7 DVDD DVDD + 0.1 V
V
IL
DGND 0.2 DVDD V
V
OH
I
OH
= 1mA DVDD – 0.4 V
V
OL
I
OL
= 1mA 0.2 DVDD V
Input Leakage 0 < V
IN
< DVDD ± 10 µ A
External Clock Input Frequency
0.2 4.9152 8 MHz
(f
CLKIN
)
Serial Clock Input Frequency (f
SCLK
) 5 MHz
Power Supply
Power-Supply Voltage
2.7 5.3 V
(AVDD, DVDD)
Normal Mode, AVDD = 3V,
600 1300 µ A
Gain = 1, 2
Normal Mode, AVDD = 3V,
1350 2500 µ A
Gain = 64, 128
Normal Mode, AVDD = 5V,
650 1300 µ A
Analog Supply Current
Gain = 1, 2
Normal Mode, AVDD = 5V,
1350 2500 µ A
Gain = 64, 128
Standby Mode 0.1 1 µ A
Power-Down 0.1 1 µA
Normal Mode, DVDD = 3V,
60 95 µA
Gain = 1, 2
Normal Mode, DVDD = 3V,
75 120 µA
Gain = 64, 128
Normal Mode, DVDD = 5V,
95 130 µA
Gain = 1, 2
Digital Supply Current
Normal mode, DVDD = 5V,
75 120 µA
Gain = 64, 128
Standby Mode, SCLK = High, DVDD = 3V 45 80 µA
Standby Mode, SCLK = High, DVDD = 5V 65 80 µ A
Power-Down 0.2 1.3 µA
Normal Mode, AVDD = DVDD = 3V,
2 4.2 mW
Gain = 1, 2
Normal Mode, AVDD = DVDD = 5V,
3.7 7.2 mW
Gain = 1, 2
Power Dissipation, Total Normal Mode, AVDD = DVDD = 3V,
4.3 7.9 mW
Gain = 64, 128
Normal Mode, AVDD = DVDD = 5V,
7.1 13.1 mW
Gain = 64, 128
Standby Mode, AVDD = DVDD = 5V 0.3 0.4 mW
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Product Folder Link(s): ADS1232 ADS1234