Datasheet

DAC161S055
SNAS503B –NOVEMBER 2010–REVISED JANUARY 2012 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
The following specifications apply for V
A
= 2.7V to 5.25V, VDDIO = V
A
, VREF = 2.5V to VA, RL = 10k to GND, C
L
= 200 pF to
GND, f
SCLK
= 20 MHz, input code range 512 to 65023. Boldface limits apply for T
MIN
≤ T
A
≤ T
MAX
: all other limits apply to T
A
= 25°C, unless otherwise specified.
(1) (2) (3)
Symbol Parameter Conditions Min Typ Max Units
Output Noise Spot noise at 20 kHz 120 nV/√Hz
Integrated Output Noise 1Hz to 10 kHz 18 µV
DIGITAL INPUT CHARACTERISTICS
I
IN
Input Current ±1 µA
V
IL
Input Low Voltage VDDIO=5V 0.8
VDDIO=3V 0.8 V
VDDIO=1.8V 0.4
VDDIO=5V 2.1
V
IH
Input High Voltage VDDIO=3V 2.1 V
VDDIO=1.8V 1.4
V
ILMZB
MZB Input Low Voltage VA=5V 0.8 V
VA=3V 0.8 V
VA=5V 2.1 V
V
IHMZB
MZB Input High Voltage
VA=3V 2.1 V
C
IN
Input Capacitance 4 pF
DIGITAL OUTPUT CHARACTERISTICS
V
OL
Output Low Voltage Isink=200 µA; VDDIO>3V 400 mV
Isink=2mA;VDDIO>3V 400
Isink=200 µA; VDDIO=1.8V 400
Isink=2mA;VDDIO=1.8V 400
V
OH
Output High Voltage Isink=200 µA; VDDIO>3V VDDIO - 0.2 V
Isink=2mA;VDDIO>3V VDDIO - 0.2
Isink=200 µA; VDDIO=1.8V VDDIO - 0.2
Isink=2mA;VDDIO=1.8V 1.15
l
OZH
, l
OZL
TRI-STATE Leakage Current <1n ±1µ A
C
OUT
TRI-STATE Output Capacitance 4 pF
POWER REQUIREMENTS
V
A
Analog Supply Voltage Range 2.7 5.25 V
VDDIO Digital Supply Voltage Range 1.7 VA V
I
VA
VA Supply Current No load. SCLK Idle. All digital inputs at 0.75 1
mA
GND or VDDIO. VA=5V
No load. SCLK Idle. All digital inputs at 0.62
1 mA
GND or VDDIO. VA=3.3V
I
REF
Reference Current 350
I
PDVA
VA Power Down Supply Current All digital inputs at GND or VDDIO 0.5 3
I
PDVO
VDDIO Power Down Supply All digital inputs at GND or VDDIO 1
µA
Current
I
PDVR
VREF Power Down Supply 1
Current
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