參數(shù)資料
型號: ADM1069AST-REEL7
廠商: ANALOG DEVICES INC
元件分類: 電源管理
英文描述: 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP32
封裝: MS-026-BBA, LQFP-32
文件頁數(shù): 31/36頁
文件大?。?/td> 763K
代理商: ADM1069AST-REEL7
ADM1069
Rev. A | Page 4 of 36
SPECIFICATIONS
VH = 3.0 V to 14.4 V1, VPn = 3.0 V to 6.0 V1, TA = 40°C to +85°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
POWER SUPPLY ARBITRATION
VH, VPn
3.0
V
Minimum supply required on one of VPn, VH
VPn
6.0
V
Maximum VDDCAP = 5.1 V, typical
VH
14.4
V
VDDCAP = 4.75 V
VDDCAP
2.7
4.75
5.4
V
Regulated LDO output
CVDDCAP
10
μF
Minimum recommended decoupling
capacitance
POWER SUPPLY
Supply Current, IVH, IVPn
4.2
6
mA
VDDCAP = 4.75 V, PDO1 to PDO8 off, DACs off,
ADC off
Additional Currents
All PDO FET Drivers On
1
mA
VDDCAP = 4.75 V, PDO1 to PDO6 loaded with
1 μA each, PDO7 to PDO8 off
Current Available from VDDCAP
2
mA
Maximum additional load that can be drawn
from all PDO pull-ups to VDDCAP
DAC Supply Currents
2.2
mA
4 DACs on with 100 μA maximum load on each
ADC Supply Current
1
mA
Running round-robin loop
EEPROM Erase Current
10
mA
1 ms duration only, VDDCAP = 3 V
SUPPLY FAULT DETECTORS
VH Pin
Input Attenuator Error
±0.05
%
Midrange and high range
Detection Ranges
High Range
6
14.4
V
Midrange
2.5
6
V
VPn Pins
Input Attenuator Error
±0.05
%
Low range and midrange
Detection Ranges
Midrange
2.5
6
V
Low Range
1.25
3
V
Ultralow Range
0.573
1.375
V
No input attenuation error
VXn Pins
Input Impedance
1
Detection Ranges
Ultralow Range
0.573
1.375
V
No input attenuation error
Absolute Accuracy
±1
%
VREF error + DAC nonlinearity + comparator
offset error
Threshold Resolution
8
Bits
Digital Glitch Filter
0
μs
Minimum programmable filter length
100
μs
Maximum programmable filter length
ANALOG-TO-DIGITAL CONVERTER
Signal Range
0
VREFIN
V
The ADC can convert signals presented to the
VH, VPn, and VXn pins. VPn and VH input signals
are attenuated depending on the selected
range. A signal at the pin corresponding to the
selected range is from 0.573 V to 1.375 V at the
ADC input.
Input Reference Voltage on REFIN Pin, VREFIN
2.048
V
Resolution
12
Bits
INL
±2.5
LSB
Endpoint corrected, VREFIN = 2.048 V
Gain Error
±0.05
%
VREFIN = 2.048 V
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