Datasheet

LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
9
Maxim Integrated
V
GEN
V
R
AC-COUPLED
+25µA
-25µA
10mV/div
LM4040-5.0V
LOAD-TRANSIENT RESPONSE
LM4040-07
40µs/div
I
SHUNT
= 100µA ± 25µA
R
L
= 100kΩ, SEE FIGURE 1
V
GEN
V
R
AC-COUPLED
+250µA
-250µA
10mV/div
LM4040-2.5V
LOAD-TRANSIENT RESPONSE
LM4040-08
10µs/div
I
SHUNT
= 1mA ± 250µA
R
L
= 10kΩ, SEE FIGURE 1
Typical Operating Characteristics (continued)
(I
R
= 100µA, SC70 package, T
A
= +25°C, unless otherwise noted.)
V
GEN
V
R
AC-COUPLED
+25µA
-25µA
2mV/div
LM4040-2.5V
LOAD-TRANSIENT RESPONSE
LM4040-06
10µs/div
CH1: V
GEN
2V/div
CH2: V
R
AC-COUPLED 2mV/div
I
SHUNT
= 100µA ± 25µA, R
L
= 100kΩ, SEE FIGURE 1
V
GEN
V
R
AC-COUPLED
+2.5mA
-2.5mA
20mV/div
LM4040-2.5V
LOAD-TRANSIENT RESPONSE
LM4040-10
10µs/div
I
SHUNT
= 10mA ± 2.5mA
R
L
= 1kΩ, SEE FIGURE 1
V
GEN
V
R
AC-COUPLED
+2.5mA
-2.5mA
20mV/div
LM4040-5.0V
LOAD-TRANSIENT RESPONSE
LM4040-11
10µs/div
I
SHUNT
= 10mA ± 2.5mA
R
L
= 1kΩ, SEE FIGURE 1
V
GEN
V
R
AC-COUPLED
+250µA
-250µA
10mV/div
LM4040-5.0V
LOAD-TRANSIENT RESPONSE
LM4040-09
10µs/div
I
SHUNT
= 1mA ± 250µA
R
L
= 10kΩ, SEE FIGURE 1
1kΩ
V
B
+
-
I
SHUNT
V
R
R
L
V
GEN
Figure 1. Load-Transient Test Circuit