參數(shù)資料
型號： XTR106P
元件分類： 運動控制電子
英文描述： A/D Converter (A-D) IC; Resolution (Bits):16; Sample Rate:100SPS; Input Channels Per ADC:1; Input Channel Type:Differential; Data Interface:Serial; Package/Case:8-SOIC; Leaded Process Compatible:No; No. of Bits:18 RoHS Compliant: Yes
中文描述： 的4 - 20mA的電橋激勵和線性電流變送器
文件頁數(shù)： 13/15頁
文件大?。?/td> 272K
代理商： XTR106P
13
XTR106
to the upper and lower sides of the bridge to keep the bridge
output within the 1.1V to 3.5V common-mode input range.
Bridge output is reduced so a preamplifier as shown may be
needed to reduce offset voltage and drift.
OTHER SENSOR TYPES
The XTR106 can be used with a wide variety of inputs. Its
high input impedance instrumentation amplifier is versatile
and can be configured for differential input voltages from
millivolts to a maximum of 2.4V full scale. The linear range
of the inputs is from 1.1V to 3.5V, referenced to the I
RET
terminal, pin 6. The linearization feature of the XTR106 can
be used with any sensor whose output is ratiometric with an
excitation voltage.
ERROR ANALYSIS
Table I shows how to calculate the effect various error
sources have on circuit accuracy. A sample error calculation
for a typical bridge sensor measurement circuit is shown
(5k
bridge, V
REF
= 5V, V
FS
= 50mV) is provided. The
results reveal the XTR106’s excellent accuracy, in this case
1.2% unadjusted. Adjusting gain and offset errors improves
circuit accuracy to 0.33%. Note that these are worst-case
errors; guaranteed maximum values were used in the calcu-
lations and all errors were assumed to be positive (additive).
The XTR106 achieves performance which is difficult to
obtain with discrete circuitry and requires less board space.
Bridge Impedance (R
B
)
Ambient Temperature Range (
T
A
)
Supply Voltage Change (
V+)
5k
20
°
C
5V
Full Scale Input (V
FS
)
Excitation Voltage (V
REF
)
Common-Mode Voltage Change (
CM)
50mV
5V
25mV (= V
FS
/2)
ERROR
(ppm of Full Scale)
TABLE I. Error Calculation.
SAMPLE ERROR CALCULATION
NOTE (1): All errors are min/max and referred to input, unless otherwise stated.
SAMPLE
ERROR SOURCE
ERROR EQUATION
ERROR CALCULATION
UNADJ
ADJUST
INPUT
Input Offset Voltage
vs Common-Mode
vs Power Supply
Input Bias Current
Input Offset Current
V
OS
/V
FS
10
6
CMRR
CM/V
FS
10
6
(V
OS
vs V+) (
V+)/V
FS
10
6
CMRR I
B
(R
B
/2)/V
FS
10
6
I
OS
R
B
/V
FS
10
6
200
μ
V/50mV 10
6
50
μ
V/V 0.025V/50mV 10
6
3
μ
V/V 5V/50mV 10
6
50
μ
V/V 25nA 2.5k
/50mV 10
6
3nA 5k
/50mV 10
6
2000
25
300
0.1
300
2625
0
25
300
0
0
325
Total Input Error
EXCITATION
Voltage Reference Accuracy
vs Supply
V
REF
Accuracy (%)/100% 10
6
(V
REF
vs V+)
(
V+) (V
FS
/V
REF
)
0.25%/100% 10
6
20ppm/V 5V (50mV/5V)
2500
1
2501
0
1
1
Total Excitation Error
GAIN
Span
Nonlinearity
Span Error (%)/100% 10
6
Nonlinearity (%)/100% 10
6
0.2%/100% 10
6
0.01%/100% 10
6
2000
100
2100
0
100
100
Total Gain Error
OUTPUT
Zero Output
vs Supply
|I
ZERO
– 4mA |/16000
μ
A 10
6
(I
ZERO
vs V+)
(
V+)/16000
μ
A 10
6
25
μ
A/16000
μ
A 10
6
0.2
μ
A/V 5V/16000
μ
A 10
6
1563
62.5
1626
0
62.5
63
Total Output Error
DRIFT (
T
A
= 20
°
C)
Input Offset Voltage
Input Offset Current (typical)
Voltage Refrence Accuracy
Span
Zero Output
Drift
T
A
/(V
FS
) 10
6
Drift
T
A
R
B
/(V
FS
) 10
6
1.5
μ
V/
°
C 20
°
C/(50mV) 10
6
5pA/
°
C 20
°
C 5k
/(50mV) 10
6
35ppm/
°
C 20
°
C
225ppm/
°
C 20
°
C
0.9
μ
A/
°
C 20
°
C/16000
μ
A 10
6
600
10
700
500
1125
2936
600
10
700
500
1125
2936
Drift
T
A
/16000
μ
A 10
6
Total Drift Error
NOISE (0.1Hz to 10Hz, typ)
Input Offset Voltage
Zero Output
Thermal R
B
Noise
Input Current Noise
V
n
(p-p)/V
FS
10
6
I
ZERO
Noise/16000
μ
A 10
6
[
√
2
√
(R
B
/2)/1k
4nV/
√
Hz
√
10Hz]/V
FS
10
6
(i
n
40.8
√
2 R
B
/2)/V
FS
10
6
0.6
μ
V/50mV 10
6
0.035
μ
A/16000
μ
A 10
6
12
2.2
0.6
0.6
15
12
2.2
0.6
0.6
15
[
√
2
√
2.5k
/1k
4nV/
√
Hz
√
10Hz]/50mV 10
6
(200fA/
√
Hz 40.8
√
2 2.5k
)/50mV 10
6
Total Noise Error
TOTAL ERROR:
11803
1.18%
3340
0.33%
相關(guān)PDF資料
PDF描述
XTR106PA A/D Converter (A-D) IC; Resolution (Bits):20; Sample Rate:100SPS; Input Channels Per ADC:1; Input Channel Type:Differential; Data Interface:Serial; Package/Case:8-SOIC; Interface Type:Serial; Leaded Process Compatible:No RoHS Compliant: Yes
XTR106U A/D Converter (A-D) IC; Resolution (Bits):16; Sample Rate:60SPS; Input Channels Per ADC:1; Input Channel Type:Differential; Data Interface:Serial, 3/4/5-Wire; Package/Case:; DNL +/-:0.5LSB; Interface Type:Serial RoHS Compliant: No
XTR106UA A/D Converter (A-D) IC; Resolution (Bits):16; ADC Sample Rate:60SPS; Input Channels Per ADC:1; Input Channel Type:Differential Inputs; DNL +/-:0.5LSB; Data Interface:Serial, 3/4/5-Wire; Package/Case:24-SOIC
XTR108 4-20mA, TWO-WIRE TRANSMITTER Smart Programmable with Signal Conditioning
XTR108EA 4-20mA, TWO-WIRE TRANSMITTER Smart Programmable with Signal Conditioning
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XTR106PA 功能描述:電流靈敏放大器 4-20mA Crnt Trnsmtr w/Bridger Exc & Lin RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
XTR106PA 制造商:Texas Instruments 功能描述:Transceiver IC
XTR106PAG4 功能描述:電流靈敏放大器 4-20mA Crnt Trnsmtr w/Bridger Exc & Lin RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
XTR106PG4 功能描述:電流靈敏放大器 4-20mA Crnt Trnsmtr w/Bridger Exc & Lin RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
XTR106U 功能描述:電流靈敏放大器 4-20mA Crnt Trnsmtr w/Bridger Exc & Lin RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
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