參數資料
型號: ADS1602
英文描述: 16-Bit, 2.5MSPS Analog-to-Digital Converter
中文描述: 16位2.5MSPS模擬到數字轉換器
文件頁數: 4/26頁
文件大?。?/td> 397K
代理商: ADS1602
"#$%&
SBAS341B DECEMBER 2004 REVISED APRIL 2005
www.ti.com
4
ELECTRICAL CHARACTERISTICS (continued)
All specifications at TA = 40
°
C to +85
°
C, AVDD = 5V, DVDD = IOVDD = 3V, fCLK = 40MHz, External VREF = +3V, VCM = +1.45V,
and RBIAS = 37k
, unless otherwise noted.
ADS1602
PARAMETER
UNIT
MAX
TYP
MIN
TEST CONDITIONS
Digital Filter Characteristics
Passband
0
1.1
f
CLK
40
MHz
MHz
Passband ripple
±
0.001
dB
Passband transition
0.1dB attenuation
1.15
f
CLK
40
MHz
MHz
3.0dB attentuation
1.23
f
CLK
40
MHz
MHz
Stop band
1.4
f
CLK
40
MHz
38.6
f
CLK
40
MHz
MHz
Stop band attenuation
75
dB
Group delay
10.4
40
MHZ
f
CLK
μ
s
Settling time
Complete settling
20.4
40
MHZ
f
CLK
μ
s
Static Specifications
Resolution
16
Bits
No missing codes
16
Bits
Input-referred noise
0.5
0.85
LSB, rms
Integral nonlinearity
1dBFS signal
0.75
LSB
Differential nonlinearity
0.25
LSB
Offset error
0.1
%FSR
Offset error drift
0.1
ppmFSR/
°
C
Gain error
0.25
%
Gain error drift
Excluding reference drift
10
ppm/
°
C
Common-mode rejection
At DC
75
dB
Power-supply rejection
At DC
65
dB
Internal Voltage Reference
REFEN = low
V
REF
= (VREFP VREFN)
VREFP
2.75
3
3.25
V
3.5
4.0
4.3
V
VREFN
0.5
1.0
1.3
V
VMID
2.3
2.5
2.7
V
V
REF
drift
Startup time
50
ppm/
°
C
15
ms
External Voltage Reference
REFEN = high
V
REF
= (VREFP VREFN)
VREFP
2.0
3
3.25
V
3.5
4
4.25
V
VREFN
0.5
1
1.5
V
VMID
2.3
2.5
2.6
V
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