LM611MN National Semiconductor, LM611MN Datasheet - Page 10

• Manufacturer Part Number: LM611MN
• Description: Operational Amplifier and Adjustable Reference
• Manufacturer: National Semiconductor

www.national.com
Typical Performance Distributions
Average V
Military Temperature Range
Average I
Military Temperature Range
Voltage Reference Broad-Band
Noise Distribution
Application Information
VOLTAGE REFERENCE
Reference Biasing
The voltage reference is of a shunt regulator topology that
models as a simple zener diode. With current I
‘forward’ direction there is the familiar diode transfer func-
tion. I
voltage to be developed from cathode to anode. The applied
voltage to the cathode may range from a diode drop below
V
parallel protection diode, nominally 7V. A 6.3V reference with
V+ = 3V is allowed.
−
to the reference voltage or to the avalanche voltage of the
r
flowing in the reverse direction forces the reference
OS
OS
Drift
Drift
DS009221-74
DS009221-77
DS009221-80
Average V
Industrial Temperature Range
Average I
Industrial Temperature Range
Op Amp Voltage
Noise Distribution
r
flowing in the
OS
OS
Drift
Drift
10
DS009221-75
DS009221-78
DS009221-81
FIGURE 1. Voltages Associated with Reference
(Current Source I
Average V
Commercial Temperature
Range
Average I
Commercial Temperature Range
Op Amp Current
Noise Distribution
OS
OS
r
is External)
Drift
Drift
DS009221-14
DS009221-76
DS009221-79
DS009221-82