ELECTRICAL CHARACTERISTICS: AVDD = 3V (Cont.)
All specifications at –40°C to +85°C, AVDD = +3V, DVDD = +2.7V to 5.25V, fMOD = 19.2kHz, PGA = 1, Buffer ON, RDAC = 75kΩ, fDATA = 10Hz, and VREF = +1.25V,
unless otherwise specified.
ADS1217
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
POWER-SUPPLY REQUIREMENTS
Power-Supply Voltage
AVDD
2.7
3.3
V
Analog Current (IADC + IVREF + IIDAC
)
PDWN = 0, or SLEEP
PGA = 1, Buffer OFF
PGA = 128, Buffer OFF
PGA = 1, Buffer ON
PGA = 128, Buffer ON
1
nA
µA
µA
µA
µA
µA
µA
A/D Converter Current (IADC
)
160
450
230
850
250
480
250
700
325
1325
375
675
VREF Current (IVREF
)
IIDAC Current (IIDAC
)
Excludes Load Current
Digital Current
Normal Mode, DVDD = 3V
SLEEP Mode, DVDD = 3V
Read Data Continuous Mode, DVDD = 3V
PDWN = 0
90
75
113
1
200
µA
µA
µA
nA
Power Dissipation
PGA = 1, Buffer OFF, REFEN = 0,
IDACs OFF, DVDD = 3V
0.8
1.4
mW
NOTES: (1) FSR is Full-Scale Range. (2) ∆VOUT is change in digital result. (3) 12pF switched capacitor at fSAMP clock frequency.
ELECTRICAL CHARACTERISTICS: Digital
All specifications at –40°C to +85°C, and DVDD = +2.7V to 5.25V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT/OUTPUT
Logic Level
VIH
0.8 × DVDD
DGND
DVDD
0.2 × DVDD
V
V
(1)
VIL
VOH
VOL
IOH = 1mA
IOL = 1mA
0 < VI < DVDD
DVDD – 0.4
DGND
V
V
µA
DGND + 0.4
10
Input Leakage: IIN
–10
CLOCK RATES
Master Clock Rate: fOSC
Master Clock Period: tOSC
1
125
8
MHz
ns
1/fOSC
1000
NOTE: (1) Maximum VIL for XIN is DGND + 0.05V.
ADS1217
SBAS260B
5
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