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參數(shù)資料
| 型號(hào)： | RCV420 |
| 英文描述： | Precision 4mA to 20mA CURRENT LOOP RECEIVER |
| 中文描述： | 精密4mA至20mA電流環(huán)接收器 |
| 文件頁(yè)數(shù)： | 9/10頁(yè) |
| 文件大?。?/td> | 240K |
| 代理商： | RCV420 |
RCV420
9
1
2
3
15
14
V
(5–0V)
RCV420
12
13
5
OPA237
20k
10
11
C
T
4–20mA
+6.25V
12k
+10V
+6.25V
R
S
R
S
C
T
1
2
3
RCV420
–In
+In
15
14
12
5
V
O
I
1
I
2
13
R
S
R
S
C
T
1
2
3
RCV420
(1)
–In
+In
10
11
12
15
14
13
4–20mA
5
V
(0–5V)
R
S
R
S
C
T
1
2
3
RCV420
(N)
–In
+In
10
11
12
15
14
13
5
V
(0–5V)
R
CM(1)
R
G(1)
FIGURE 10. Series 4-20mA Receivers.
FIGURE 13. Power Supply Current Monitor Circuit.
FIGURE 12. 4-20mA to 5-0V Conversion.
V
O
= 6.25V – (0.3125) (I
IN
)
NOTE: (1) R
and R
are used to provide a first order correction of CMR
and Gain Error, respectively. Table 1 gives typical resistor values for R
and R
G
when as many as three RCV420s are stacked. Table II gives
typical CMR and Gain Error with no correction. Further improvement in
CMR and Gain Error can be achieved using a 500k
potentiometer for
R
CM
and a 100
potentiometer for R
G
.
RCV420
R
CM
(k
)
∞
200
67
R
G
(
)
1
2
3
0
7
23
TABLE 1. Typical Values for R
CM
and R
G
.
TABLE II. Typical CMR and Gain Error
Without Correction.
RCV420
CMR (dB)
GAIN ERROR %
1
2
3
94
68
62
0.025
0.075
0.200
FIGURE 11. Differential Current-to-Voltage Converter.
V
= 0.3125 (I
– I
)
Max Gain Error = 0.1% (RCV420BG)
(
I
L
MAX
16mA
–1
)
NOTE: (1) R
X
= R
S
/
C
T
15
5
12
13
3
2
1
14
RCV420
+In
+In
Load
Load
Power
Supply
C
T
15
5
12
13
14
RCV420
–In
I
L
+In
Power
Supply
–40V (max)
+40V (max)
R
X(1)
R
X(1)
R
X(1)
R
X(1)
R
S
R
S
R
S
R
S
V
(0-5V)
V
(0-5V)
I
L
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RCV420JP | Precision 4mA to 20mA CURRENT LOOP RECEIVER |
| RCV420KP | Precision 4mA to 20mA CURRENT LOOP RECEIVER |
| RCV5201-052DN | FIBER OPTIC RECEIVER |
| RCV5201-052FP | FIBER OPTIC RECEIVER |
| RCV5201-052SC | FIBER OPTIC RECEIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RCV420JP | 功能描述:電流靈敏放大器 Precision 4-20mA Crnt Loop Rcvr 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(bǔ)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 |
| RCV420JP | 制造商:Texas Instruments 功能描述:CURRENT LOOP RECEIVER PDIP16 420 |
| RCV420JP | 制造商:Texas Instruments 功能描述:RECEIVER IC 制造商:Texas Instruments 功能描述:IC, CURRENT LOOP RECEIVER, 150KHZ, DIP16 |
| RCV420JPG4 | 功能描述:電流靈敏放大器 Precision 4-20mA Crnt Loop Rcvr 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(bǔ)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 |
| RCV420KP | 功能描述:電流靈敏放大器 Precision 4-20mA Crnt Loop Rcvr 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(bǔ)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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