AD5687R(Rev0) Просмотр технического описания (PDF) - Analog Devices
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AD5687R Datasheet PDF : 28 Pages
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AD5689R/AD5687R
Data Sheet
Parameter
REFERENCE OUTPUT
Output Voltage7
Reference Temperature
Coefficient8, 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
Input Low Voltage (VINL)
Input High Voltage (VINH)
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
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
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
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
Normal Mode10
0.59 0.7
1.1 1.3
0.59 0.7
mA
1.1 1.3
mA
All Power-Down
Modes11
1
4
6
1
4
µA
6
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 for A and B grades: −40°C to +105°C.
2 DC specifications tested with the outputs unloaded, unless otherwise noted. Upper dead band = 10 mV; it exists only when VREF = VDD with gain = 1 or when
VREF/2 = VDD with gain = 2. Linearity is calculated using a reduced code range of 256 to 65,280 (AD5689R) and 12 to 4080 (AD5687R).
3 Guaranteed by design and characterization; not production tested.
4 Channel A can have an output current of up to 30 mA. Similarly, Channel B can have an output current of up to 30 mA, up to a junction temperature of 110°C.
5 VDD = 5 V. The devices include current limiting that is intended to protect them during temporary overload conditions. Junction temperature may be exceeded
during current limit, but operation above the specified maximum operation junction temperature can 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 32).
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 is calculated as per the box method. See the Terminology section for more information.
10 Interface inactive. Both DACs active. DAC outputs unloaded.
11 Both DACs powered down.
Rev. 0 | Page 4 of 28
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