ADS1218_14 Datasheet, PDF (7/45 Pages) Texas Instruments – 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER with FLASH Memory

ADS1218
www.ti.com
SBAS187C – SEPTEMBER 2001 – REVISED SEPTEMBER 2005
DIGITAL CHARACTERISTICS: T_MIN to T_MAX, DV_DD = 2.7V to 5.25V
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Digital Input/Output
Logic Family
CMOS
Logic Level
V_IH
V_IL
V_OH
V_OL
Input Leakage
I_OH = 1mA
I_OL = 1mA
0.8 × DV_DD
DGND
DV_DD – 0.4
DGND
DV_DD
V
0.2 × DV_DD
V
V
DGND + 0.4
V
I_IH
V_I = DV_DD
I_IL
V_I = 0
–10
Master Clock Rate: f_OSC(1)
1
Master Clock Period: t_OSC(1)
1/f_OSC
200
10
5
1000
µA
µA
MHz
ns
(1) For the Write RAM to Flash operation (WR2F), the SPEED bit in the SETUP register must be set appropriately and the device operating
frequency must be: 2.3MHz < f_OSC < 4.13MHz.
FLASH CHARACTERISTICS: T_MIN to T_MAX, DV_DD = 2.7V to 5.25V, unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Operating Current
Page Write
Page Read
Endurance
DV_DD = 5V, During WR2F Command
DV_DD = 3V, During WR2F Command
DV_DD = 5V, During RF2R Command
DV_DD = 3V, During RF2R Command
17
9
8
2
100,000
mA
mA
mA
mA
Write Cycles
Data Retention
at +25°C
100
Years
DV_DD for Erase/Write
2.7
5.25
V
7