AD5684R 查看數據表（PDF） - Analog Devices
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AD5684R Datasheet PDF : 32 Pages
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AD5686R/AD5685R/AD5684R
Data Sheet
Parameter
REFERENCE OUTPUT
Output Voltage7
Reference TC8, 9
Output Impedance3
Output Voltage Noise3
Output Voltage Noise
Density3
Load Regulation Sourcing3
Load Regulation Sinking3
Output Current Load
Capability3
Line Regulation3
Long-Term Stability/Drift3
Thermal Hysteresis3
LOGIC INPUTS3
Input Current
VINL, Input Low Voltage
VINH, Input High Voltage
Pin Capacitance
LOGIC OUTPUTS (SDO)3
Output Low Voltage, VOL
Output High Voltage, VOH
Floating State Output
Capacitance
POWER REQUIREMENTS
VLOGIC
ILOGIC
VDD
VDD
IDD
Normal Mode10
All Power-Down
Modes11
A Grade1
Min
Typ Max
2.4975
2.5025
5
20
0.04
12
240
20
40
±5
100
12
125
25
0.7 × VLOGIC
2
±2
0.3 × VLOGIC
0.4
VLOGIC − 0.4
4
1.8
5.5
3
2.7
5.5
VREF + 1.5
5.5
0.59 0.7
1.1 1.3
1
4
6
B Grade1
Min
Typ Max
2.4975
2.5025
2
5
0.04
12
240
20
40
±5
100
12
125
25
0.7 × VLOGIC
2
±2
0.3 × VLOGIC
0.4
VLOGIC − 0.4
4
1.8
5.5
3
2.7
5.5
VREF + 1.5
5.5
0.59 0.7
1.1 1.3
1
4
6
Unit
V
ppm/°C
Ω
µV p-p
nV/√Hz
µV/mA
µV/mA
mA
µV/V
ppm
ppm
ppm
µA
V
V
pF
V
V
pF
V
µA
V
V
mA
mA
µA
µA
Test Conditions/Comments
At ambient
See the Terminology section
0.1 Hz to 10 Hz
At ambient; f = 10 kHz, CL = 10 nF
At ambient
At ambient
VDD ≥ 3 V
At ambient
After 1000 hours at 125°C
First cycle
Additional cycles
Per pin
ISINK = 200 μA
ISOURCE = 200 μA
Gain = 1
Gain = 2
VIH = VDD, VIL = GND, VDD = 2.7 V to 5.5 V
Internal reference off
Internal reference on, at full scale
−40°C to +85°C
−40°C to +105°C
1 Temperature range: A and B grade: −40°C to +105°C.
2 DC specifications tested with the outputs unloaded, unless otherwise noted. Upper dead band = 10 mV and exists only when VREF = VDD with gain = 1 or when VREF/2 =
VDD with gain = 2. Linearity calculated using a reduced code range of 256 to 65,280 (AD5686R), 64 to 16,320 (AD5685R), and 12 to 4080 (AD5684R).
3 Guaranteed by design and characterization; not production tested.
4 Channel A and Channel B can have a combined output current of up to 30 mA. Similarly, Channel C and Channel D can have a combined output current of up to
30 mA up to a junction temperature of 110°C.
5 VDD = 5 V. The device includes current limiting that is intended to protect the device during temporary overload conditions. Junction temperature can be exceeded
during current limit. Operation above the specified maximum operation junction temperature may impair device reliability.
6 When drawing a load current at either rail, the output voltage headroom with respect to that rail is limited by the 25 Ω typical channel resistance of the output
devices. For example, when sinking 1 mA, the minimum output voltage = 25 Ω × 1 mA = 25 mV (see Figure 34).
7 Initial accuracy presolder reflow is ±750 µV; output voltage includes the effects of preconditioning drift. See the Internal Reference Setup section.
8 Reference is trimmed and tested at two temperatures and is characterized from −40°C to +105°C.
9 Reference temperature coefficient calculated as per the box method. See the Terminology section for further information.
10 Interface inactive. All DACs active. DAC outputs unloaded.
11 All DACs powered down.
Rev. 0 | Page 4 of 32
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