參數(shù)資料
型號(hào)： ADS7870EA
英文描述： 12-Bit ADC, MUX, PGA and Internal Reference DATA ACQUISITION SYSTEM
中文描述： 12位ADC，復(fù)用器，PGA和內(nèi)部基準(zhǔn)數(shù)據(jù)采集系統(tǒng)
文件頁(yè)數(shù)： 2/27頁(yè)
文件大?。?/td> 262K
代理商： ADS7870EA
2
ADS7870
ADS7870EA
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG INPUT CHARACTERISTICS
Input Voltage Range (LNx inputs)
Input Capacitance
(2)
Input Impedance
(2)
Common-Mode
Differential
Channel-to-Channel Crosstalk
Multiplexer Leakage Current
Linear Operation
–0.2
V
DD
+ 0.2
V
pF
4 to 9.7
6
7
M
M
dB
pA
V
IN
= 2Vp-p, 60Hz
(3)
100
100
STATIC ACCURACY
Resolution
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Offset Error
Full Scale (Gain) Error
Ratiometric Configuration or External Ref
(4)
12
Bits
Bits
LSB
LSB
LSB
G = 1 to 20V/V
G = 1 to 20V/V
G = 1 to 20V/V
G = 1 to 20V/V
12
±
1
±
0.5
±
1
±
2.5
±
6
G = 1 to 10V/V
±
0.2
%FSR
G = 16 and 20V/V
G = 1 to 10V/V
G = 16 and 20V/V
V
IN
= –0.2V to 5.2V, G = 20 V/V
V
DD
= 5V
±
10%, G = 20 V/V
±
0.25
±
0.35
±
0.4
%FSR
%FSR
%FSR
dB
dB
Internal Reference
DC Common-Mode Rejection, RTI
Power Supply Rejection, RTI
92
86
DYNAMIC CHARACTERISTICS
Throughput Rate, Continuous Mode
One Channel
Different Channels
52
52
20
ksamp/s
ksamp/s
MHz
MHz
MHz
ns
ns
Address Mode
External Clock, CCLK
(5)
Internal Oscillator Frequency
Serial Interface Clock (SCLK)
Data Set-Up Time
Data Hold Time
0.100
2.5
20
10
10
DIGITAL INPUTS
Logic Levels
Low Level Input Voltage, V
IL
High Level Input Voltage, V
IH
0.8
V
V
V
μ
A
μ
A
V
DD
≤
3.6V
V
DD
> 3.6V
2
3
Low Level Input Current, I
IL
High Level Input Current, I
IH
DIGITAL OUTPUTS
Data Coding
V
OL
1
1
Binary Two’s Complement
I
SINK
= 5mA
I
SINK
= 16mA
I
SOURCE
= 0.5mA
= 5mA
High-Z State, V
OUT
= 0V to V
DD
0.4
V
V
V
V
μ
A
pF
0.8
V
OH
V
DD
– 0.4
4.6
I
= 5mA, DOUT pin
Output Capacitance
1
5
VOLTAGE REFERENCE
BUF
Input Voltage Range
Input Impedance
BUF
/REF
IN(6), (7)
Output Voltage Accuracy
vs Temperature
Bandgap Voltage Reference
Short-Circuit Current
Input to Buffer Amplifier
0.9
V
DD
– 0.2
V
10
12
|| 3
|| pF
V
REF
= 2.048V and 2.5V
T
A
= –40
°
C to 85
°
C
±
0.05%
10
1.15
20
±
0.25
50
%
ppm/
°
C
V
mA
POWER SUPPLY REQUIREMENTS
Specified Voltage Range, V
DD
Operating Voltage Range
Power Supply Current
(6)
1kHz Sample Rate
50kHz Sample Rate
Power Down
Power Dissipation
(6)
1kHz Sample Rate
50kHz Sample Rate
Power Down
5
V
V
2.7
5.5
REF and BUF On, Internal Oscillator on
REF and BUF On, External CCLK
REF and BUF Off
0.450
1.2
mA
mA
μ
A
1.7
1
REF and BUF On, Internal Oscillator on
REF and BUF On, External CCLK
REF and BUF Off
2.25
6
mW
mW
μ
W
8.5
5
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance,
θ
JA
–40
–55
–65
+85
+125
+150
°
C
°
C
°
C
150
°
C/W
SPECIFICATIONS FOR THE TOTAL SYSTEM
(1)
(See next section for specifications for each function in the ADS7870)
At T
A
= +25
°
C, V
DD
= +5.0V, V
REF
= 2.5V connected to BUF
IN
(using internal reference), 2.5MHz CCLK and 2.5MHz SCLK, unless otherwise noted.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7870EA/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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
ADS7870EA/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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
ADS7870EA/250 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 12-Bit
ADS7870EAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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
ADS7870EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS7870 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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