參數(shù)資料
型號(hào): ADUC834
廠商: Analog Devices, Inc.
英文描述: MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU
中文描述: MicroConverter的,雙與嵌入62KB閃存MCU 16-/24-位ADC
文件頁(yè)數(shù): 3/72頁(yè)
文件大小: 1451K
代理商: ADUC834
REV.
P
rC (12 March 2002)
–3–
ADuC834
PRELIMINARY TECHNICAL DATA
(AV
DD
= 2.7V to 3.6V or 4.75V to 5.25V, DV
DD
= 2.7V to 3.6V or 4.75V to 5.25V,
REFIN+) = 2.5V, REFIN–) = AGND AGND= DGND= 0V; XTAL1/XTAL2 = 32.768kHz
Crystal; all specifications T
MN
to T
MAX
unless otherwse noted.)
Parameter
ADuC834BS
T est Conditions/Comments
Unit
ADC SPECIFICAT IONS
Conversion Rate
5.4
105
On Both Channels
Programmable in 0.732 ms Increments
Hz min
Hz max
Primary ADC
No Missing Codes
2
Resolution
24
13
18
See T able X and X I
in ADuC834 ADC
Description (pg 30)
±15
±3
±10
±10
±0.5
±2
113
80
20 Hz Update Rate
Range = ±20 mV, 20 Hz Update Rate
Range = ±2.56 V, 20 Hz Update Rate
Output Noise Varies with Selected
Update Rate and Gain Range
Bits min
Bits p-p typ
Bits p-p typ
Output Noise
Integral Nonlinearity
Offset Error
3
Offset Error Drift
Full-Scale Error
4
Gain Error Drift
5
ADC Range Matching
Power Supply Rejection (PSR)
1 LSB
16
ppm of FSR max
μV typ
nV/°C typ
μV typ
ppm/°C typ
μV typ
dBs typ
dBs min
AIN = 18 mV
AIN = 7.8 mV, Range = ±20 mV
AIN = 1 V, Range = ±2.56 V
Common-Mode DC Rejection
On AIN
On AIN
On REFIN
Common-Mode 50 Hz/60 Hz Rejection
2
On AIN
95
113
125
At DC, AIN = 7.8 mV, Range = ±20 mV dBs min
At DC, AIN = 1 V, Range = ±2.56 V
At DC, AIN = 1 V, Range = ±2.56 V
20 Hz Update Rate
50 Hz/60 Hz ±1 Hz, AIN = 7.8 mV,
Range = ±20 mV
50 Hz/60 Hz ±1 Hz, AIN = 1 V,
Range = ±2.56 V
50 Hz/60 Hz ±1 Hz, AIN = 1 V,
Range = ±2.56 V
dBs typ
dBs typ
95
dBs min
90
dBs min
On REFIN
90
dBs min
Normal Mode 50 Hz/60 Hz Rejection
2
On AIN
On REFIN
Auxiliary ADC
No Missing Codes
2
Resolution
Output Noise
60
60
50 Hz/60 Hz ±1 Hz, 20 Hz Update Rate
50 Hz/60 Hz ±1 Hz, 20 Hz Update Rate
dBs min
dBs min
16
16
See T able X II in
ADuC834 ADC
Description (pg 30)
±15
–2
1
–2.5
±0.5
80
Bits min
Bits p-p typ
Range = ±2.5 V, 20 Hz Update Rate
Output Noise Varies with Selected
Update Rate
Integral Nonlinearity
Offset Error
3
Offset Error Drift
Full-Scale Error
6
Gain Error Drift
5
Power Supply Rejection (PSR)
Normal Mode 50 Hz/60 Hz Rejection
2
On AIN
On REFIN
ppm of FSR max
LSB typ
μV/°C typ
LSB typ
ppm/°C typ
dBs min
AIN = 1 V, 20 Hz Update Rate
60
60
50 Hz/60 Hz ±1 Hz
50 Hz/60 Hz ±1 Hz, 20 Hz Update Rate
dBs min
dBs min
DAC PERFORMANCE
DC Specifications
7
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
Gain Error
8
12
±3
–1
±50
±1
±1
Bits
LSB typ
LSB max
mV max
% max
% typ
Guaranteed 12-Bit Monotonic
AV
DD
Range
V
REF
Range
AC Specifications
2, 7
Voltage Output Settling T ime
Digital-to-Analog Glitch Energy
15
10
Settling T ime to 1 LSB of Final Value
1 LSB Change at Major Carry
μs typ
nVs typ
SPECIFICATIONS
1
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