DAC121C081, DAC121C085
SNAS395D –DECEMBER 2007–REVISED MARCH 2013
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Electrical Characteristics (continued)
Values shown in this table are design targets and are subject to change before product release.
The following specifications apply for VA = +2.7V to +5.5V, VREF = VA, CL = 200 pF to GND, input code range 48 to 4047.
Boldface limits apply for TMIN ≤ TA ≤ TMAX and all other limits are at TA = 25°C, unless otherwise specified.
Units
(Limits)
Symbol
Parameter
Conditions
Typical(1)
Limits(1)
LOGIC INPUT CHARACTERISTICS (SCL, SDA)
VIH
VIL
Input High Voltage
Input Low Voltage
Input Current
0.7 x VA
0.3 x VA
±1
V (min)
V (max)
µA (max)
pF (max)
V (min)
IIN
CIN
Input Pin Capacitance(3)
3
VHYST
Input Hysteresis
0.1 x VA
LOGIC INPUT CHARACTERISTICS (ADR0, ADR1)
VIH
VIL
IIN
Input High Voltage
Input Low Voltage
Input Current
VA- 0.5V
0.5
V (min)
V (max)
µA (max)
±1
LOGIC OUTPUT CHARACTERISTICS (SDA)
ISINK = 3 mA
ISINK = 6 mA
0.4
0.6
V (max)
V (max)
VOL
IOZ
Output Low Voltage
High-Impedence Output Leakage
Current
±1
µA (max)
POWER REQUIREMENTS
Supply Voltage Minimum
Supply Voltage Maximum
2.7
5.5
V (min)
V (max)
VA
Normal -- VOUT set to midscale. 2-wire interface quiet (SCL = SDA = VA). (output unloaded)
VA = 2.7V to 3.6V
105
132
86
156
214
118
152
43
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µW
IST_VA-1
IST_VA-5
IST_VREF
PST
VADAC121C081 Supply Current
VA = 4.5V to 5.5V
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 3.0V
VADAC121C085 Supply Current
98
37
VREF Supply Current
(DAC121C085 only)
53
61
380
730
Power Consumption
(VA & VREF for DAC121C085)(4)
VA = 5.0V
µW
Continuous Operation -- 2-wire interface actively addressing the DAC and writing to the DAC register. (output unloaded)
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 2.7V to 3.6V
VA = 4.5V to 5.5V
VA = 3.0V
134
192
225
374
101
142
193
325
33.5
49.5
480
1.06
810
2.06
220
300
320
500
155
220
235
410
55
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µA (max)
µW
fSCL=400kHz
fSCL=3.4MHz
fSCL=400kHz
fSCL=3.4MHz
ICO_VA-1 VADAC121C081 Supply Current
ICO_VA-5 VADAC121C085 Supply Current
VREF Supply Current
ICO_VREF
(DAC121C085 only)
71.4
fSCL=400kHz
fSCL=3.4MHz
VA = 5.0V
mW
Power Consumption
PCO
(VA & VREF for DAC121C085)
VA = 3.0V
µW
VA = 5.0V
mW
(3) This parameter is specified by design and/or characterization and is not tested in production.
(4) To ensure accuracy, it is required that VA and VREF be well bypassed.
6
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