AMP01 Datasheet, PDF (16/22 Pages) Analog Devices – Low Noise, Precision Instrumentation Amplifier

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