Datasheet

ADS8363
ADS7263
ADS7223
www.ti.com
SBAS523B OCTOBER 2010REVISED JANUARY 2011
ELECTRICAL CHARACTERISTICS: GENERAL (continued)
All minimum/maximum specifications at T
A
= –40°C to +125°C, specified supply voltage range, VREF = 2.5V (int), and t
DATA
=
1MSPS, unless otherwise noted. Typical values are at T
A
= +25°C, AVDD = 5V, and DVDD = 3.3V.
ADS8363, ADS7263, ADS7223
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INTERNAL VOLTAGE REFERENCE
Resolution Reference output DAC resolution 10 Bits
Over 20% to 100% DAC range 0.2V
REFOUT
V
REFOUT
V
V
REFOUT
Reference output voltage REFIO1, DAC = 3FFh, 2.485 2.500 2.515 V
REFIO2, DAC = 3FFh 2.480 2.500 2.520 V
dV
REFOUT
/dT Reference voltage drift ±10 ppm/°C
DNL
DAC
DAC differential linearity error –4 ±1 4 LSB
INL
DAC
DAC integral linearity error –4 ±0.5 4 LSB
V
OSDAC
DAC offset error V
REFOUT
= 0.5V –4 ±1 4 LSB
PSRR Power-supply rejection ratio 73 dB
I
REFOUT
Reference output dc current –2 +2 mA
Reference output short-circuit
I
REFSC
50 mA
current
(1)
t
REFON
Reference output settling time C
REF
= 22mF 8 ms
VOLTAGE REFERENCE INPUT
V
REF
Reference input voltage range 0.5 2.5 2.525 V
I
REF
Reference input current 50 mA
External ceramic reference
C
REF
22 mF
capacitance
DIGITAL INPUTS
(2)
I
IN
Input current V
IN
= DVDD to DGND –50 +50 nA
C
IN
Input capacitance 5 pF
Logic family CMOS with Schmitt-Trigger
V
IH
High-level input voltage DVDD = 4.5V to 5.5V 0.7DVDD DVDD + 0.3 V
V
IL
Low-level input voltage DVDD = 4.5V to 5.5V –0.3 0.3DVDD V
Logic family LVCMOS
V
IH
High-level input voltage DVDD = 2.3V to 3.6V 2 DVDD + 0.3 V
V
IL
Low-level input voltage DVDD = 2.3V to 3.6V –0.3 0.8 V
DIGITAL OUTPUTS
(2)
V
C
OUT
Output capacitance 5 pF
C
LOAD
Load capacitance 30 pF
Logic family CMOS
V
OH
High-level output voltage DVDD = 4.5V, I
OH
= –100µA 4.44 V
V
OL
Low-level output voltage DVDD = 4.5V, I
OH
= +100µA 0.5 V
Logic family LVCMOS
V
OH
High-level output voltage DVDD = 2.3V, I
OH
= –100µA DVDD – 0.2 V
V
OL
Low-level output voltage DVDD = 2.3V, I
OH
= +100µA 0.2 V
(1) Reference output current is not internally limited.
(2) Specified by design; not production tested.
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