DDC114_14 Datasheet, PDF (4/37 Pages) Texas Instruments – Quad Current Input, 20-Bit Analog-To-Digital Converter

DDC114
SBAS255C − JUNE 2004 − REVISED APRIL 2009
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At T_A = +25°C, AVDD = +5V, DVDD = 3V, VREF = +4.096V, Range 5 (250pC), and continuous mode operation, unless otherwise noted.
Low-Power Mode: T_INT = 400µs and CLK = 4MHz; High-Speed Mode: T_INT = 320µs and CLK = 4.8MHz.
Low-Power Mode
High-Speed Mode
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN TYP MAX
UNITS
DIGITAL INPUT/OUTPUT
Logic Levels
V_IH
V_IL
V_OH
V_OL
Input Current (I_IN)
Data Format⁽¹²⁾
POWER-SUPPLY REQUIREMENTS
Analog Power-Supply Voltage (AVDD)
Digital Power-Supply Voltage (DVDD)
Supply Current
Total Analog Current
Total Digital Current
Total Power Dissipation
Total Power Dissipation per Channel
I_OH = −500µA
I_OL = 500µA
0 < V_IN < DVDD
DVDD = +3V
DVDD = +3V
DVDD = +3V
0.8DVDD
− 0.1
DVDD + 0.1 ∗
0.2DVDD
∗
∗
V
∗
V
DVDD − 0.4
0.4
±10
Straight Binary
V
∗
V
∗
µA
∗
4.75
5.25
∗
∗
V
2.7
5.25
∗
∗
V
10.5
0.5
54
75
13.5
18.75
14.0
mA
0.67
mA
72 100
mW
18
25
mW
(12)Data _{format is Straight Binary with a small offset. The number of bits in the output word is controlled by the FORMAT pin (see text).}
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