REF01CS-REEL7 Analog Devices Inc, REF01CS-REEL7 Datasheet - Page 10

• Manufacturer Part Number: REF01CS-REEL7
• Description: IC,VOLT REFERENCE,FIXED,10V,BIPOLAR,SOP,8PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of REF01CS-REEL7

• Rohs Status: RoHS non-compliant
• Reference Type: Series
• Voltage - Output: 10V
• Tolerance: ±14%
• Temperature Coefficient: 65ppm/°C
• Voltage - Input: 12 ~ 40 V
• Number Of Channels: 1
• Current - Quiescent: 1.4mA
• Current - Output: 10mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Current - Cathode: -

REF01
PRECISION CURRENT SOURCE
A current source with 25 V output compliance and excellent
output impedance can be obtained using this circuit. REF01
keeps the line voltage and power dissipation constant in the
device; the only important error consideration at room
temperature is the negative supply rejection of the op amp.
The typical 3 µV/V PSRR of the OP02E creates an 8 ppm
change (3 µV/V × 25 V/10 V) in output current over a 25 V
range. For example, a 10 mA current source can be built
(R = 1 kΩ) with 300 MΩ output impedance.
REF01
GND
R
V
1
O
IN
RC = 10
4
2
=
V
O
8
×
6
–5
10
SEC
−
25
Figure 20. Precision Current Source
6
×
R
C
V
10
6
6
V
mA
O
REF01
OP02E
+50V
GND
4
–5V
V
2
IN
2
7
4
2
3
C
R
(TRIM FOR
CALIBRATION)
I
O
=
10V
V
R
TO 25V
O
= 0V
Rev. H | Page 10 of 12
SUPPLY BYPASSING
For best results, it is recommended that the power supply pin be
bypassed with a 0.1 µF disc ceramic capacitor.
REFERENCE STACK WITH EXCELLENT LINE
REGULATION
Three REF01s can be stacked to yield 10 V, 20 V, and 30 V
outputs. An additional advantage is near-perfect line regulation
of the 10.0 V and 20.0 V output. A 32 V to 60 V input change
produces an output change that is less than the noise voltage of
the devices. A load bypass resistor (R
supply current (I
In general, any number of REF01s can be stacked this way.
For example, 10 devices will yield outputs of 10 V, 20 V,
30 V . . . 100 V. The line voltage can change from 105 V to
130 V. However, care must be taken to ensure that the total
load currents do not exceed the maximum usable current
(typically 21 mA).
32V TO 60V
REF01
REF01
GND
GND
V
V
IN
IN
2
TRIM
4
2
4
TRIM
V
V
O
O
6
5
5
6
SY
) of the 20 V regulator.
Figure 21. Reference Stack
REF01
GND
V
IN
TRIM
2
4
10kΩ
V
O
B
) provides a path for the
5
6
OUTPUTS
TRIMMED
10kΩ
10kΩ
R
6.8kΩ
B
20V
30V
10V