参数资料
型号: EVAL-ADUC7122QSPZ
厂商: Analog Devices Inc
文件页数: 56/96页
文件大小: 0K
描述: BOARD EVALUATION FOR ADUC7122
设计资源: EVAL-ADUC7122 Schematic
ADUC7122 Gerber Files
ADUC7122 BOM
标准包装: 1
系列: MicroConverter® ADuC7xxx
类型: MCU
适用于相关产品: ADUC7122
所含物品:
ADuC7122
Rev. 0 | Page 6 of 96
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
ON-CHIP VOLTAGE REFERENCE
0.47 μF from VREF to AGND
Output Voltage
2.5
V
Accuracy7
±5
mV
TA = 25°C
Reference Temperature Coefficient4
10
30
ppm/°C
Power Supply Rejection Ratio
61
dB
Output Impedance
10
Ω
TA = 25°C
Internal VREF Power-On Time
1
ms
EXTERNAL REFERENCE INPUT
Input Voltage Range
1.2
AVDD
V
BUF_VREF1, BUF_VREF2 OUTPUTS
Accuracy
±5
mV
TA = 25°C
Reference Temperature Coefficient
40
μV/°C
Load Current
1.2
mA
DAC CHANNEL SPECIFICATIONS
RL = 5 kΩ, CL = 100 pF
DC Accuracy8
Buffered
Resolution
12
Bits
Relative Accuracy
±2
LSB
Differential Nonlinearity
±0.2
±1
LSB
Guaranteed monotonic
Calculated Offset Error
±2
mV
2.5 V internal reference
Actual Offset Error
9
mV
Measured at Code 0
Gain Error9
±0.15
±0.8
%
Gain Error Mismatch
0.1
%
% of full scale on DAC0
Settling Time
10
μs
Buffered
DC
59
61
dB
1 kHz
57
dB
10 kHz
47
dB
100 kHz
19
dB
OFFSET DRIFT4
10
μV/°C
GAIN ERROR DRIFT4
10
μV/°C
SHORT-CIRCUIT CURRENT
20
mA
ANALOG OUTPUTS
Output Range
0.1
VREF/AVDD
0.1
V
Buffer on
DAC AC CHARACTERISTICS
Slew Rate
2.49
V/μs
Voltage Output Settling Time
10
μs
Digital-to-Analog Glitch Energy
±20
nV-sec
1 LSB change at major carry (where maximum
number of bits simultaneously change in the
DACxDAT register)
TEMPERATURE SENSOR10
Voltage Output at 25°C
707
mV
Voltage TC
1.25
mV/°C
Accuracy
±3
°C
MCU in power-down or standby mode before
measurement
POWER SUPPLY MONITOR (PSM)
IOVDD Trip Point Selection
2.79
V
Two selectable trip points
3.07
V
Power Supply Trip Point Accuracy
±2.5
%
Of the selected nominal trip point voltage
POWER-ON RESET
2.36
V
WATCHDOG TIMER (WDT)
Timeout Period
0
512
sec
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