AD7729 Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
AD7729 Datasheet PDF : 16 Pages
| |||
Parameter
AD7729A
Units
LOGIC INPUTS
VINH, Input High Voltage
VINL, Input Low Voltage
IIH, Input Current
CIN, Input Capacitance
VDD – 0.8
0.8
10
10
V min
V max
µA max
pF max
LOGIC OUTPUTS
VOH, Output High Voltage
VOL, Output Low Voltage
IOZL, Low Level Output Three-State Leakage Current
IOZH, High Level Output Three-State Leakage Current
VDD – 0.4
0.4
10
10
V min
V max
µA max
µA max
POWER SUPPLIES
AVDD1, AVDD2
DVDD1, DVDD2
IDD
2.7/3.3
2.7/3.3
V min/max
V min/max
NOTES
1Operating Temperature Range: –40°C to +105°C. Therefore, TMIN = –40°C and TMAX = +105°C.
2During power-down, the AUXDAC has an output resistance of 30 kΩ approximately to AGND.
Specifications subject to change without notice.
AD7729
Test Conditions/Comments
|IOUT| < 100 µA
|IOUT| < 100 µA
See Table I
CL
50pF
RL
10k⍀
Figure 1. AUXDAC Load Equivalent Circuit
Table I. Current Summary (AVDD1 = AVDD2 = DVDD1 = DVDD2 = +3.3 V, RxPOWER1 = 0, RxPOWER0 = 1)
Conditions
ADCs On Only
AUXDAC On Only
REFCAP On Only
REFCAP and
REFOUT On Only
All Sections Off
All Sections Off
Internal
Analog Digital
Current Current
(typ) (typ)
External
Interface Total
Current Current
(typ) (max)
4.2
3.4
4
13.5
2
0.86
0.1
3.4
0.7
0.0001 0.002 1.1
1
0.0001 0.002 1.7
0.0001 0.04
0.015 0.1
0.0001 0.0001 0.005 0.05
BSE
1
0
0
0
0
0
ASE
0
1
0
0
0
0
MCLK
ON Comments
YES REFOUT Enabled, BSCLK = MCLK
YES REFOUT Disabled, ASCLK = MCLK/48
NO REFOUT Disabled
NO REFOUT Enabled
YES MCLK Active Levels Equal to 0 V and DVDD
NO Digital Inputs Static and Equal to 0 V or
DVDD
The above values are in mA.
REV. 0
–3–
Share Link: 