ADS1232
ADS1234
www.ti.com
SBAS350–JUNE 2005
ELECTRICAL CHARACTERISTICS: VREF = +5V (continued)
All specifications TA = –40°C to +105°C, AVDD = DVDD = VREFP = +5V, VREFN = AGND, Internal Oscillator, SPEED =
Low, Gain = 64 (unless otherwise specified).
ADS1232, ADS1234
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Digital
Logic Levels
VIH
VIL
0.6 DVDD
DGND
DVDD + 0.1
0.3 DVDD
V
V
VOH
IOH = 1mA
IOL = 1mA
DVDD – 0.4
V
VOL
0.2 DVDD
V
Input Leakage
Power Supply
0 < VIN < DVDD
±10
µA
Power Supply Voltage
(AVDD, DVDD)
2.7
5.3
TBD
TBD
TBD
TBD
V
Normal mode, AVDD = 3V, Gain = 1, 2
600
1500
700
µA
µA
µA
µA
Normal mode, AVDD = 3V,
Gain = 64, 128
Normal mode, AVDD = 5V, Gain = 1, 2
Analog Supply Current
Normal mode, AVDD = 5V,
Gain = 64, 128
1600
Standby mode
0.1
0.1
90
TBD
TBD
TBD
µA
µA
µA
Power-down
Normal mode, DVDD = 3V, Gain = 1, 2
Normal mode, DVDD = 3V,
Gain = 64, 128
90
110
110
TBD
TBD
TBD
µA
µA
µA
Normal mode, DVDD = 5V, Gain = 1, 2
Digital Supply Current
Normal mode, DVDD = 5V,
Gain = 64, 128
Standby mode, SCLK = High
Power-down
50
TBD
TBD
µA
µA
0.1
Normal mode, AVDD = DVDD = 3V,
Gain = 1, 2
2.1
4
TBD
TBD
TBD
TBD
mW
mW
mW
mW
Normal mode, AVDD = DVDD = 5V,
Gain = 1, 2
Normal mode, AVDD = DVDD = 3V,
Gain = 64, 128
4.8
8.6
Power Dissipation, Total
Normal mode, AVDD = DVDD = 5V,
Gain = 64, 128
Standby
TBD
TBD
TBD
TBD
mW
mW
Power-down
4
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