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参数资料
| 型号： | ADS1217 |
| 英文描述： | 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 8通道，24位模拟数字转换器 |
| 文件页数： | 3/28页 |
| 文件大小： | 458K |
| 代理商： | ADS1217 |
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ADS1217
SBAS260B
3
www.ti.com
ELECTRICAL CHARACTERISTICS: AV
DD
= 5V
(Cont.)
All specifications at –40
°
C to +85
°
C, AV
DD
= +5V, DV
DD
= +2.7V to 5.25V, f
MOD
= 19.2kHz, PGA = 1, Buffer ON, R
DAC
= 150k
, f
DATA
= 10Hz, and V
REF
= +2.5V,
unless otherwise specified.
ADS1217
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOLTAGE REFERENCE INPUT
Reference Input (V
REF
)
Negative Reference Input (V
REF–
)
Positive Reference Input (V
REF+
)
Common-Mode Rejection
Common-Mode Rejection
Bias Current
(3)
V
REF
≡
(V
REF+
) – (V
REF–
)
0.1
2.5
2.6
V
V
V
dB
dB
μ
A
AGND – 0.1
(V
REF–
) + 0.1
(V
REF+
) – 0.1
AV
DD
+ 0.1
at DC
120
120
1.3
f
VREFCM
= 60Hz, f
DATA
= 60Hz
V
REF
= 2.5V, PGA = 1
ON-CHIP VOLTAGE REFERENCE
Output Voltage
REF HI = 1
REF HI = 0
2.4
2.5
1.25
8
50
15
10
3
5
2.6
V
V
Short-Circuit Current Source
Short-Circuit Current Sink
Drift
Noise
Output Impedance
Startup Time
mA
μ
A
ppm/
°
C
μ
Vrms
ms
V
RCAP
= 0.1
μ
F, BW = 0.1Hz to 100Hz
Sourcing 100
μ
A
IDAC
Full-Scale Output Current
R
DAC
= 150k
, Range = 1
R
DAC
= 150k
, Range = 2
R
DAC
= 150k
, Range = 3
R
DAC
= 15k
, Range = 3
0.5
1
2
20
mA
mA
mA
mA
k
Bits
V
Current Setting Resistance (R
DAC
)
Monotonicity
Compliance Voltage
Output Impedance
PSRR
Gain Error
Gain Error Drift
Gain Error Mismatch
Gain Error Mismatch Drift
10
8
0
R
DAC
= 150k
AV
DD
– 1
See Typical Characteristics
400
5
75
0.25
15
V
OUT
= AV
/2, Code > 16
Individual IDAC
Individual IDAC
Between IDACs, Same Range and Code
Between IDACs, Same Range and Code
ppm/V
%
ppm/
°
C
%
ppm/
°
C
POWER-SUPPLY REQUIREMENTS
Power-Supply Voltage
Analog Current (I
ADC
+ I
VREF
+ I
IDAC)
A/D Converter Current (I
ADC
)
AV
DD
4.75
5.25
V
nA
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
PDWN = 0, or SLEEP
PGA = 1, Buffer OFF
PGA = 128, Buffer OFF
PGA = 1, Buffer ON
PGA = 128, Buffer ON
1
175
500
250
900
250
480
275
750
350
1375
375
675
V
REF
Current (I
VREF
)
I
IDAC
Current (I
IDAC
)
Excludes Load Current
Digital Current
Normal Mode, DV
DD
= 5V
SLEEP Mode, DV
= 5V
Read Data Continuous Mode, DV
DD
= 5V
PDWN = 0
PGA = 1, Buffer OFF, REFEN = 0,
IDACs OFF, DV
DD
= 5V
180
150
230
1
1.8
275
μ
A
μ
A
μ
A
nA
mW
Power Dissipation
2.8
NOTES: (1) FSR is Full-Scale Range. (2)
V
OUT
is change in digital result. (3) 12pF switched capacitor at f
SAMP
clock frequency.
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相关代理商/技术参数 |
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|---|---|
| ADS1217EVM | 功能描述:数据转换 IC 开发工具 ADS1217 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| ADS1217IPFB | 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1217 TQFP48 制造商:Texas Instruments 功能描述:IC, 24BIT ADC, SMD, 1217, TQFP48 |
| ADS1217IPFB | 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1217 TQFP48 |
| ADS1217IPFBR | 功能描述:模数转换器 - ADC 8-Ch 24-Bit ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS1217IPFBRG4 | 功能描述:模数转换器 - ADC 8-Ch 24B ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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