AD586BR Analog Devices Inc, AD586BR Datasheet - Page 11

• Manufacturer Part Number: AD586BR
• Description: IC PREC VOLT REF 5V 8-SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD586BR

• Temperature Coefficient: 5ppm/°C
• Rohs Status: RoHS non-compliant
• Reference Type: Series
• Voltage - Output: 5V
• Tolerance: ±2.5mV
• Voltage - Input: 10.8 ~ 36 V
• Number Of Channels: 1
• Current - Quiescent: 3.0mA
• Current - Output: 10mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Fixed / Adjust / Prog: Precision
• Output Voltage (max): 5V
• Reference Voltage Accuracy (max): 2.5
• Line Regulation: 100uV/V
• Load Regulation: 400uV/mA
• Input Voltage (max): 36V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Current - Cathode: -
• Lead Free Status / RoHS Status: Not Compliant

5 V REFERENCE WITH MULTIPLYING
CMOS DACs OR ADCs
The AD586 is ideal for applications with 10- and 12-bit
multiplying CMOS DACs. In the standard hookup, as shown
in Figure 20, the AD586 is paired with the AD7545 12-bit
multiplying DAC and the AD711 high speed BiFET op amp.
The amplifier DAC configuration produces a unipolar 0 V to
−5 V output range. Bipolar output applications and other
operating details can be found in the individual product data
sheets.
The AD586 can also be used as a precision reference for multi-
ple DACs. Figure 21 shows the AD586, the AD7628 dual DAC,
and the AD712 dual op amp hooked up for single-supply opera-
tion to produce 0 V to −5 V outputs. Because both DACs are on
the same die and share a common reference and output op
amps, the DAC outputs will exhibit similar gain TCs.
STACKED PRECISION REFERENCES FOR
MULTIPLE VOLTAGES
Often, a design requires several reference voltages. Three
AD586s can be stacked, as shown in Figure 22, to produce
5.000 V, 10.000 V, and 15.000 V outputs. This scheme can be
extended to any number of AD586s, provided the maximum
load current is not exceeded. This design provides the addi-
tional advantage of improved line regulation on the 5.0 V
output. Changes in V
that are below the noise level of the references.
AD586
AD586
GND
+15V
V
V
+15V
GND
OUT
4
2
IN
V
V
TRIM
2
4
IN
OUT
6
6
5
Figure 20. Low Power 12-Bit CMOS DAC Application
INPUTS
Figure 21. AD586 as a 5 V Reference for a CMOS
DATA
10kΩ
V
V
REF
REF
A
B
19
DB11 TO DB0
14
4
7
4
IN
V
AD7545K
REF
DB0
DB7
+15V
of 18 V to 50 V produce output changes
V
+15V
18
DD
17
DAC B
DAC A
AD7628
DGND
3
DGND
RFB A
5
R
20
OUT 1
3
FB
AGND
68Ω
OUT A
OUT B
R2
RFB B
AGND
1
2
19
20
2
1
C1
33pF
2
3
AD711K
–15V
+15V
AD712
7
4
0.1µF
0.1µF
6
0 V TO –5V
V
V
0 TO –5V
0 TO –5V
OUT
OUT
A =
B =
V
OUT
Rev. G | Page 11 of 16
PRECISION CURRENT SOURCE
The design of the AD586 allows it to be easily configured as a
current source. By choosing the control resistor R
the user can vary the load current from the quiescent current
(typically, 2 mA) to approximately 10 mA. The compliance volt-
age of this circuit varies from about 5 V to 21 V, depending on
the value of V
PRECISION HIGH CURRENT SUPPLY
For higher currents, the AD586 can easily be connected to a
power PNP or power Darlington PNP device. The circuit in
Figure 24 and Figure 25 can deliver up to 4 amps to the load.
The 0.1 µF capacitor is required only if the load has a significant
capacitive component. If the load is purely resistive, improved
high frequency supply rejection results can be obtained by
removing the capacitor.
Figure 22. Multiple AD586s Stacked for Precision 5 V, 10 V, and 15 V Outputs
AD586
22V TO 46V
GND
V
4
2
IN
TRIM
V
OUT
IN
AD586
AD586
.
GND
6
5
+V
V
Figure 23. Precision Current Source
4
2
IN
GND
IN
V
2
4
IN
V
TRIM
OUT
V
OUT
6
5
6
(500Ω MIN)
AD586
R
C
GND
V
2
4
IN
10kΩ
V
TRIM
OUT
6
5
I
L
=
5V
R
C
10kΩ
10kΩ
C
in Figure 23,
+ I
BIAS
AD586
15V
10V
5V