AD693–SPECIFICATIONS R(@L =+22550؇C⍀a,nVdCVM ==3+.124V,Vw. iItnhpeuxttSeprannal=pa3s0smtrVanosris6t0ormuVn.lOeusstpoutthSeprwanis=e n4o–t2e0d.m) A,
S
Model
AD693AD/AQ/AE
Conditions
Min
Typ
Max
Units
LOOP-POWERED OPERATION
TOTAL UNADJUSTED ERROR1, 2
TMIN to TMAX
±0.25 ؎0.5
% Full Scale
% Full Scale
±0.4
؎0.75
100 Ω RTD CALIBRATION ERROR3
(See Figure 17)
±0.5
±2.0
°C
LOOP POWERED OPERATION2
Zero Current Error4
Zero = 4 mA
±25
±40
+35
±0.5
±3.0
؎80
µA
µA
µA
µA/°C
µV/V
Zero = 12 mA
؎120
+100
±1.5
؎5.6
Zero = 0 mA5
+7
0
vs. Temp.
Power Supply Rejection (RTI)
Zero = 4 mA
12 V ≤ VOP ≤ 36V6
0 V ≤ VCM ≤ 6.2 V
(See Figure 3)
0 V ≤ VCM ≤ 6.2 V
Common-Mode Input Range
Common-Mode Rejection (RTI)
Input Bias Current7
+VOP – 4 V6
؎30
+20
+25
؎3.0
V
±10
+5
+7
µV/V
nA
nA
nA
T
MIN to TMAX
Input Offset Current7
Transconductance
Nominal
VSIG = 0
±0.5
30 mV Input Span
60 mV Input Span
0.5333
0.2666
±0.05 ؎0.2
A/V
A/V
%
Unadjusted Error
vs. Common-Mode
0 V ≤ VCM ≤ 6.2 V
30 mV Input Span
60 mV Input Span
±0.03 ±0.04
±0.05 ±0.06
%/V
%/V
Error vs. Temp.
Nonlinearity8
±20
±0.01 ؎0.05
±0.02 ؎0.07
±50
ppm/°C
% of Span
% of Span
30 mV Input Span
60 mV Input Span
OPERATIONAL VOLTAGE RANGE
6
Operational Voltage, VOP
Quiescent Current
+12
+21
+36
+700
V
µA
Into Pin 9
+500
+25
OUTPUT CURRENT LIMIT
+32
mA
COMPONENTS OF ERROR
SIGNAL AMPLIFIER9
Input Voltage Offset
vs. Temp
±40
±1.0
±3.0
؎200
±2.5
؎5.6
µV
µV/°C
µV/V
Power Supply Rejection
12 V ≤ VOP ≤ 36 V6
0 V ≤ VCM ≤ 6.2 V
V/I CONVERTER9, 10
Zero Current Error
Power Supply Rejection
Transconductance
Nominal
Output Span = 4–20 mA
±30
±1.0
±80
±3.0
µA
µA/V
12 V ≤ VOP ≤ 36 V6
0.2666
±0.05 ±0.2
A/V
%
Unadjusted Error
6.200 V REFERENCE9, 12
Output Voltage Tolerance
vs. Temp.
±3
؎12
±50
؎300
؎0.75
mV
±20
±200
±0.3
+3.5
+5.0
ppm/°C
µV/V
mV/mA
mA
Line Regulation
12 V ≤ VOP ≤ 36 V6
0 mA ≤ IREF ≤ 3 mA
Loop Powered, (Figure 10)
3-Wire Mode, (Figure 15)
Load Regulation11
Output Current13
+3.0
mA
REV. A
–2–