AMP01AX/883C AD [Analog Devices], AMP01AX/883C Datasheet - Page 16

• Manufacturer Part Number: AMP01AX/883C
• Description: Low Noise, Precision Instrumentation Amplifier
• Manufacturer: AD [Analog Devices]

AMP01
Figure 37. 13-Bit Linear 4–20 mA Transmitter Constructed by Adding a Voltage Reference.
Thermocouple Signals Can Be Accepted Without Preamplification.
+IN
–IN
0V
+IN
–IN
ALL RESISTORS 1% METAL FILM
V
IN
R
2.75k
Figure 36. High Compliance Bipolar Current Source with 13-Bit Linearity
R
2k
G
G
18
1
2
3
18
1
2
3
R
R
G
G
R
R
R
G
G
S
R
14
S
14
2k
R
2k
AMP01
S
R
AMP01
S
R
0.047 F
S
R
15
S
COMPLIANCE OF I
DIFFERENTIAL INPUT OF 100mV FOR 16mA SPAN
OUTPUT RESISTANCE ~5M
LINEARITY 0.01% OF SPAN
15
V+
V–
+15V
–15V
V+
V–
12
11
12
11
13
10
13
10
OUT
, +20V WITH +30V SUPPLY (OUTPUT w.r.t. 0V)
7
8
R4
100
–16–
0.047 F
SENSE
7
8
REFERENCE
0.047 F
2.21k
AT I
100
9
9
R3
R5
0.047 F
OUT
R
TRIM
OUT
200
= 20mA
R2
ZERO TRIM
R
OUT
200
500
R2
R6
TRIM
100
COMPLIANCE, TYPICALLY
LINEARITY ~0.01%
OUTPUT RESISTANCE AT 20mA ~5M
POWER BANDWIDTH (–3dB) ~60kHz
INTO 500
R1 = 100
V
R1
IN
=
R1
100
I
OUT
100mV FOR
4
6
FOR I
LOAD
= V
REF-02
IN
(
OUT
2
R
20
G
=
20mA FULL SCALE
I
OUT
R
R1
20mA
S
)
+15V
TO +30V
I
4mA TO 20mA
–5V
OUT
10V
REV. D