参数资料
型号: ADM1069AST-REEL7
厂商: ANALOG DEVICES INC
元件分类: 电源管理
英文描述: 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP32
封装: MS-026-BBA, LQFP-32
文件页数: 32/36页
文件大小: 763K
代理商: ADM1069AST-REEL7
ADM1069
Rev. A | Page 5 of 36
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
Conversion Time
0.44
ms
One conversion on one channel
84
ms
All 8 channels selected, averaging enabled
Offset Error
±2
LSB
VREFIN = 2.048 V
Input Noise
0.25
LSBrms
Direct input (no attenuator)
BUFFERED VOLTAGE OUTPUT DACs
Resolution
8
Bits
Code 0x80 Output Voltage
4 DACs are individually selectable for centering
on one of four output voltage ranges
Range 1
0.592
0.6
0.603
V
Range 2
0.796
0.8
0.803
V
Range 3
0.996
1
1.003
V
Range 4
1.246
1.25
1.253
V
Output Voltage Range
601.25
mV
Same range, independent of center point
LSB Step Size
2.36
mV
INL
±0.75
LSB
Endpoint corrected
DNL
±0.4
LSB
Gain Error
1
%
Maximum Load Current (Source)
100
μA
Maximum Load Current (Sink)
100
μA
Maximum Load Capacitance
50
pF
Settling Time into 50 pF Load
2
μs
Load Regulation
2.5
mV
Per mA
PSRR
60
dB
DC
40
dB
100 mV step in 20 ns with 50 pF load
REFERENCE OUTPUT
Reference Output Voltage
2.043
2.048
2.053
V
No load
Load Regulation
0.25
mV
Sourcing current, IDACnMAX = 100 μA
0.25
mV
Sinking current, IDACnMAX = 100 μA
Minimum Load Capacitance
1
μF
Capacitor required for decoupling, stability
PSRR
60
dB
DC
PROGRAMMABLE DRIVER OUTPUTS
High Voltage (Charge Pump) Mode
(PDO1 to PDO6)
Output Impedance
500
VOH
11
12.5
14
V
IOH = 0
10.5
12
13.5
V
IOH = 1 μA
IOUTAVG
20
μA
2 V < VOH < 7 V
Standard (Digital Output) Mode (PDO1 to PDO8)
VOH
2.4
V
VPU (pull-up to VDDCAP or VPn) = 2.7 V, IOH = 0.5 mA
4.5
V
VPU to VPn = 6.0 V, IOH = 0 mA
VPU 0.3
V
VPU ≤ 2.7 V, IOH = 0.5 mA
VOL
0
0.50
V
IOL = 20 mA
20
mA
Maximum sink current per PDO pin
ISINK2
60
mA
Maximum total sink for all PDOs
RPULL-UP
16
20
29
Internal pull-up
ISOURCE (VPn)2
2
mA
Current load on any VPn pull-ups, that is, total
source current available through any number of
PDO pull-up switches configured onto any one
Three-State Output Leakage Current
10
μA
VPDO = 14.4 V
Oscillator Frequency
90
100
110
kHz
All on-chip time delays derived from this clock
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