AD587JNZ Analog Devices Inc, AD587JNZ Datasheet - Page 10

• Manufacturer Part Number: AD587JNZ
• Description: IC PREC VOLT REF 10V 8-DIP
• Manufacturer: Analog Devices Inc

Specifications of AD587JNZ

• Temperature Coefficient: 20ppm/°C
• Reference Type: Series
• Voltage - Output: 10V
• Tolerance: ±10mV
• Voltage - Input: 13.5 ~ 36 V
• Number Of Channels: 1
• Current - Quiescent: 4mA
• Current - Output: 10mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Topology: Series
• Input Voltage: 13.5V To 36V
• Reference Voltage: 10V
• Reference Voltage Tolerance: 10mV
• Voltage Reference Case Style: DIP
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AD587
APPLICATIONS INFORMATION
USING THE AD587 WITH CONVERTERS
The AD587 is an ideal reference for a variety of 8-bit, 12-bit,
14-bit, and 16-bit ADCs and DACs. Several examples follow.
10 V Reference with Multiplying CMOS DACs or ADCs
The AD587 is ideal for applications with 10-bit and 12-bit
multiplying CMOS DACs. In the standard hookup, shown in
Figure 18, the AD587 is paired with the
plying DAC and the
amplifier DAC configuration produces a unipolar 0 V to −10 V
output range. Bipolar output applications and other operating
details can be found in the individual product data sheets.
The AD587 can also be used as a precision reference for multi-
ple DACs. Figure 19 shows the AD587, the
and the
operation to produce 0 V to −10 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 temperature
coefficients (TCs).
Precision Current Source
The design of the AD587 allows it to be easily configured as a cur-
rent source. By choosing the control resistor (R
shown in Figure 20, the user can vary the load current from the
quiescent current (2 mA typically) to approximately 10 mA.
AD587
+15V
GND
+V
AD587
V
GND
+15V
OUT
+V
IN
TRIM
V
IN
OUT
Figure 19. AD587 as a 10 V Reference for a CMOS Dual DAC
AD712
Figure 18. Low Power 12-Bit CMOS DAC Application
INPUTS
DATA
10kΩ
0.1µF
0.1µF
dual op amp hooked up for single-supply
V
V
REF
REF
B
A
DB11 TO DB0
AD711
18
V
REF
AD7545
DB0
DB7
+15V
V
+15V
DD
DAC A
AD7628
DAC B
high speed BiFET op amp. The
DGND
DGND
RFB A
R
AGND
FB
OUT1
R2
OUT B
OUT A
RFB B
AGND
AD7545
C1
33pF
AD7628
C
AD711
) via the equation
+15V
–15V
AD712
12-bit multi-
0.1µF
0.1µF
dual DAC,
0V TO –10V
V
0 TO –10V
V
0 TO –10V
OUT
OUT
V
OUT
A =
B =
Rev. H | Page 10 of 12
Precision High Current Supply
For higher currents, the AD587 can easily be connected to a
power PNP or power Darlington PNP device. The circuits in
Figure 21 and Figure 22 can deliver up to 4 A 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.
AD587
+V
IN
220Ω
GND
AD587
+V
+V
Figure 22. Precision High Current Voltage Source
4
2
IN
IN
220Ω
V
Figure 21. Precision High Current Source
OUT
AD587
+V
GND
Figure 20. Precision Current Source
GND
+V
+V
4
2
2
4
IN
IN
IN
6
V
0.1µF
V
OUT
OUT
6
0.1µF
6
500Ω
MIN
R
C
2N6285
R
C
I
L
2N6285
=
10V
R
V
+10V @ 4A
C
OUT
+ I
I
L
BIAS
=
10V
R
C
+ I
BIAS