AD581LH Analog Devices Inc, AD581LH Datasheet - Page 8

• Manufacturer Part Number: AD581LH
• Description: IC PREC VOLT REF 10V TO-5-3
• Manufacturer: Analog Devices Inc

Specifications of AD581LH

• Temperature Coefficient: 5ppm/°C
• Reference Type: Series
• Voltage - Output: 10V
• Tolerance: ±5mV
• Voltage - Input: 12 ~ 30 V
• Number Of Channels: 1
• Current - Quiescent: 1mA
• Current - Output: 10mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: TO-5-3, Metal Can
• Topology: Series
• Input Voltage: 12V To 30V
• Reference Voltage: 10V
• Reference Voltage Tolerance: 5mV
• No. Of Pins: 3
• Operating Temperature Range: 0°C To +70°C
• Fixed / Adjust / Prog: Precision
• Output Voltage (max): 10V
• Reference Voltage Accuracy (max): 5
• Line Regulation: 0.005%/V
• Load Regulation: 500uV/mA
• Input Voltage (max): 40V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 3
• Package Type: TO-5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Lead Free Status / Rohs Status: Compliant

AD581
PRECISION HIGH CURRENT SUPPLY
The AD581 can be easily connected with power pnp or power
Darlington pnp devices to provide much greater output current
capability. The circuit shown in Figure 10 delivers a precision
10 V output with up to 4 A supplied 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 from removing the capacitor.
V
IN
≥ 15V
Figure 10. High Current Precision Supply
470Ω
AD581
+V
GND
S
V
OUT
0.1µF
2N6040
V
10V @ 4A
OUT
Rev. C | Page 8 of 12
CONNECTION FOR REDUCED PRIMARY SUPPLY
Whereas line regulation is specified down to 13 V, the typical
AD581 works as specified ≤12 V. The current sink capability
allows even lower supply voltage capability such as operation
from 12 V ±5% as shown in Figure 11. The 560 Ω resistor reduces
the current supplied by the AD581 to a manageable level at a
full 5 mA load. Note that the other band gap references, without
current sink capability, may be damaged by use in this circuit
configuration.
AD581
Figure 11. 12 V Supply Connection
+V
GND
S
V
OUT
560Ω 5%
12V ±5%
10V @ 0mA TO 5mA