ELECTRICAL CHARACTERISTICS: AVDD = 3V (Cont.)
All specifications TMIN to TMAX, AVDD = +3V, DVDD = +2.7V to 5.25V, fMOD = 19.2kHz, fOSC = 2.4576MHz, PGA = 1, Buffer ON, RDAC = 75kΩ, fDATA=10Hz,
VREF ≡ (REF IN+) – (REF IN–) = +1.25V unless otherwise specified.
ADS1218
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
POWER-SUPPLY REQUIREMENTS
Power-Supply Voltage
AVDD
2.7
3.3
V
nA
µA
µA
µA
µA
µA
µA
µA
µA
µA
nA
mW
Analog Current (IADC + IVREF + IDAC
ADC Current (IADC
)
PDWN = 0, or SLEEP
PGA = 1, Buffer OFF
PGA = 128, Buffer OFF
PGA = 1, Buffer ON
PGA = 128, Buffer ON
1
)
160
450
230
850
250
480
90
75
113
1
250
700
325
1325
375
675
200
VREF Current (IVREF
)
IDAC Current (IDAC
Digital Current
)
Excludes Load Current
Normal Mode, DVDD = 3V
SLEEP Mode, DVDD = 3V
Read Data Continuous Mode, DVDD = 3V
PDWN = 0
Power Dissipation
PGA = 1, Buffer OFF, REFEN = 0,
IDACS OFF, DVDD = 3V
0.8
1.4
TEMPERATURE RANGE
Operating
Storage
–40
–60
+85
+100
°C
°C
NOTES: (1) Calibration can minimize these errors. (2) ∆ VOUT is change in digital result. (3) 12pF switched capacitor at fSAMP clock frequency.
DIGITAL CHARACTERISTICS: TMIN to TMAX, DVDD = 2.7V to 5.25V
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Digital Input/Output
Logic Family
CMOS
Logic Level: VIH
0.8 • DVDD
DGND
DVDD
0.2 • DVDD
V
V
VIL
VOH
IOH = 1mA
IOL = 1mA
VI = DVDD
VI = 0
DVDD – 0.4
DGND
V
V
µA
µA
MHz
ns
VOL
Input Leakage: IIH
IIL
Master Clock Rate: fOSC
Master Clock Period: tOSC
DGND + 0.4
10
–10
1
200
(1)
5
1000
(1)
1/fOSC
NOTE: (1) For FLASH E/W operations, the SPEED bit in the SETUP register must be set appropriately and the device operating frequency must be:
2.3MHz < FOSC < 4.13MHz.
FLASH CHARACTERISTICS: TMIN to TMAX, DVDD = 2.7V to 5.25V, unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Current
Page Write
DVDD = 5V, During WR2F Command
DVDD = 3V, During WR2F Command
DVDD = 5V, During RF2R Command
DVDD = 3V, During RF2R Command
6.5
3.75
4.0
mA
mA
mA
Page Read
1.2
mA
Endurance
Data Retention
DVDD for Erase/Write
100,000
E/W Cycles
Years
V
at 25°C
100
2.7
5.25
ADS1218
5
SBAS187
BB [ BURR-BROWN CORPORATION ]
