Datasheet

R
650W
ON
C
1pF
(SAMPLE)
BVDD
D
IN
BGND
AVDD
A
IN
AGND
DiodeTurn-OnVoltage:0.35V
EquivalentDigitalInputCircuit
EquivalentAnalogInputCircuit
ADS1209
www.ti.com SBAS491 –FEBRUARY 2010
ELECTRICAL CHARACTERISTICS (continued)
Over operating ambient temperature range of –40°C to +105°C, AVDD = 5V, BVDD = 3V, CHx+ = 0.2V to 4.8V, CHx– =
2.5V, V
REFIN
= V
REFOUT
= 2.5V (internal), CLKIN = 20MHz, and 16-bit Sinc
3
filter with OSR = 256, unless otherwise noted.
ADS1209
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
DIGITAL INPUTS
Logic family LVCMOS
V
IH
High-level input voltage BVDD = 3.6V 2 BVDD + 0.3 V
V
IL
Low-level input voltage BVDD = 2.7V –0.3 0.8 V
I
IN
Input current V
IN
= BVDD or BGND ±50 nA
C
I
Input capacitance 5 pF
DIGITAL OUTPUTS
Logic family LVCMOS
V
OH
High-level output voltage BVDD = 2.7V, I
OH
= –100mA BVDD – 0.2 V
V
OL
Low-level output voltage BVDD = 2.7V, I
OL
= +100mA 0.2 V
C
O
Output capacitance 5 pF
C
L
Load capacitance 30 pF
Data format Bit stream
POWER SUPPLY
AVDD Analog supply voltage 4.5 5.0 5.5 V
Low-voltage levels 2.7 3.0 3.6 V
BVDD Buffer I/O supply voltage
5V logic levels 4.5 5.0 5.5 V
CLKSEL = 1 12.2 17 mA
AIDD Analog operating supply current
CLKSEL = 0 11.8 16 mA
BVDD = 3V, CLKOUT = 10MHz 0.9 2 mA
BIDD Buffer I/O operating supply current
BVDD = 5V, CLKOUT = 10MHz 1.3 3 mA
CLKSEL = 1, 5V supply 67.5 100.0 mW
P
D
Power dissipation
CLKSEL = 0, 5V supply 65.5 95 mW
BLANKSPACE
EQUIVALENT INPUT CIRCUITS
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Product Folder Link(s): ADS1209