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參數(shù)資料
| 型號(hào)： | ADS1254E |
| 英文描述： | 24-Bit, 20kHz, Low Power ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 24位20kHz的，低功耗模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 281K |
| 代理商： | ADS1254E |
ADS1254
SBAS213
3
ELECTRICAL CHARACTERISTICS
(Cont.)
All specifications at T
MIN
to T
MAX
, AV
DD
= +5V, DV
DD
= +1.8V. CLK = 8MHz, and V
REF
= 4.096, unless otherwise specified.
ADS1254E
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DIGITAL INPUT/OUTPUT
Logic Family
Logic Level: V
IH
V
IL
V
OH
V
Input (SCLK, CLK, CHSEL0, CHSEL1) Hysteresis
Data Format
CMOS
0.65
DV
DD
–
0.3
DV
DD
–
0.4
DV
DD
+ 0.3
0.35
DV
DD
V
V
V
V
V
I
OH
=
–
500
μ
A
OL
= 500
μ
A
0.4
0.6
Offset Binary Two
’
s Complement
POWER-SUPPLY REQUIREMENTS
Power Supply Voltage
DV
DD
AV
1.8
4.75
3.6
5.25
1.15
0.4
6.5
1
VDC
VDC
mA
mA
mW
μ
A
5
Quiescent Current
AV
DD
= +5V
DV
DD
= +1.8V
0.8
0.2
4.3
0.4
Operating Power
Power-Down Current
TEMPERATURE RANGE
Operating
Storage
–
40
–
60
+85
+100
°
C
°
C
CH1+
ADS1254E
CH4
–
CH1
–
CH4+
CH2+
V
REF
AGND
CH2
–
1
2
3
4
20
19
18
17
16
15
14
13
12
11
CH3+
CHSEL1
CH3
–
CHSEL0
AV
DD
SCLK
DOUT/DRDY
CLK
5
6
7
8
9
10
DV
DD
DGND
NC
NC
PIN CONFIGURATION
Top View
SSOP-20
PIN DESCRIPTIONS
PIN
NAME
PIN DESCRIPTION
1
CH1+
Analog Input: Positive Input of the Differen-
tial Analog Input
Analog Input: Negative Input of the Differ-
ential Analog Input
Analog Input: Positive Input of the Differen-
tial Analog Input
Analog Input: Negative Input of the Differ-
ential Analog Input
Analog Input: Positive Input of the Differen-
tial Analog Input
Analog Input: Negative Input of the Differ-
ential Analog Input
Input: Analog Power Supply Voltage, +5V
Digital Input: Device System Clock. The
system clock is in the form of a CMOS-
compatible clock. This is a Schmitt-Trigger
input
Input: Digital Power Supply Voltage
No Connection
No Connection
Input: Digital Ground
Digital Output: Serial Data Output/Data
Ready. This output indicates that a new
output word is available from the ADS1254
data output register. The serial data is
clocked out of the serial data output shift
register using SCLK.
Digital Input: Serial Clock. The serial clock
is in the form of a CMOS-compatible clock.
The serial clock operates independently
from the system clock, therefore, it is pos-
sible to run SCLK at a higher frequency
than CLK. The normal state of SCLK is
LOW. Holding SCLK HIGH will either ini-
tiate a modulator reset for synchronizing
multiple converters or enter power-down
mode. This is a Schmitt-Trigger input.
Digital Input: Used to select analog input
channel. This is a Schmitt-Trigger Input
Digital Input: Used to select analog input
channel. This is a Schmitt-Trigger Input
Input: Analog Ground
Analog Input: Reference Voltage Input
Analog Input: Negative Input of the Differ-
ential Analog Input
Analog Input: Positive Input of the Differen-
tial Analog Input
2
CH1
–
3
CH2+
4
CH2
–
5
CH3+
6
CH3
–
7
8
AV
DD
CLK
9
10
11
12
13
DV
DD
NC
NC
DGND
DOUT/DRDY
14
SCLK
15
CHSEL1
16
CHSEL0
17
18
19
AGND
V
CH4
–
20
CH4+
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1254E | 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1254 SSOP20 制造商:Texas Instruments 功能描述:IC, 24BIT ADC, SMD, 1254, SSOP20 制造商:Texas Instruments 功能描述:IC, 24BIT ADC, SMD, 1254, SSOP20; Resolution (Bits):24bit; Sampling Rate:20.8kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:800A; Digital IC Case Style:SSOP; No. of Pins:20; ;RoHS Compliant: Yes |
| ADS1254E/2K5 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 20kHz Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1254E/2K5G4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 20kHz Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1254EG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 20kHz Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1254-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit, 20-kHz, LOW POWER ANALOG-TO-DIGITAL CONVERTER |
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