Datasheet

ADS8528
ADS8548
ADS8568
www.ti.com
SBAS543A AUGUST 2011 REVISED OCTOBER 2011
ELECTRICAL CHARACTERISTICS: GENERAL (continued)
All minimum/maximum specifications are at T
A
= 40°C to +125°C, specified supply voltage range, VREF = 2.5V (internal),
V
IN
= ±10V, and f
DATA
= max, unless otherwise noted. Typical values are at T
A
= +25°C, HVDD = 15V, HVSS = 15V,
AVDD = 5V, and DVDD = 3.3V.
ADS8528, ADS8548, ADS8568
PARAMETER CONDITIONS MIN TYP MAX UNIT
DIGITAL INPUTS
(2)
Logic family CMOS with Schmitt-Trigger
High-level input voltage 0.7 DVDD DVDD + 0.3 V
Low-level input voltage DGND 0.3 0.3 DVDD V
Input current V
I
= DVDD to DGND 50 50 nA
Input capacitance 5 pF
DIGITAL OUTPUTS
(2)
Output capacitance 5 pF
Load capacitance 30 pF
High-impedance-state output current 50 50 nA
Logic family CMOS
High-level output voltage V
OH
I
OH
= 100μA DVDD 0.6 V
I
OH
= 100μA DGND +
Low-level output voltage V
OL
V
0.4
POWER-SUPPLY REQUIREMENTS
Analog supply voltage AVDD 4.5 5.0 5.5 V
Buffer I/O supply voltage DVDD 2.7 3.3 5.5 V
Input positive supply voltage HVDD 5.0 15.0 16.5 V
Input negative supply voltage HVSS 16.5 15.0 5.0 V
ADS8528, f
DATA
= maximum 37.9 50.1 mA
ADS8548, f
DATA
= maximum 37.3 49.3 mA
ADS8568, f
DATA
= maximum 36.6 48.4 mA
f
DATA
= 250kSPS, auto-sleep mode 20.3 30.0 mA
f
DATA
= 200kSPS, auto-sleep mode 17 mA
Analog supply current IAVDD
f
DATA
= 10kSPS, normal operation 30 mA
f
DATA
= 10kSPS, auto-sleep mode 4.6 mA
Auto-sleep mode, no ongoing conversion,
7.0 mA
internal conversion clock
Power-down mode 0.03 mA
f
DATA
= maximum 0.5 2.0 mA
f
DATA
= 250kSPS 0.5 1.4 mA
f
DATA
= 200kSPS 0.5 mA
Buffer I/O supply current IDVDD
f
DATA
= 10kSPS 0.4 mA
Auto-sleep mode, no ongoing conversion,
0.35 mA
internal conversion clock
Power-down mode 0.01 mA
ADS8528, f
DATA
= maximum 3.0 4.2 mA
ADS8548, f
DATA
= maximum 2.8 3.9 mA
ADS8568, f
DATA
= maximum 2.3 3.2 mA
f
DATA
= 250kSPS 1.8 2.4 mA
Input positive supply current IHVDD
f
DATA
= 200kSPS 1.5 mA
f
DATA
= 10kSPS 0.4 mA
Auto-sleep mode, no ongoing conversion,
0.45 mA
internal conversion clock
Power-down mode 0.01 mA
(2) Specified by design.
Copyright © 2011, Texas Instruments Incorporated 7
Product Folder Link(s): ADS8528 ADS8548 ADS8568