Datasheet

5
LT1236
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
Output Noise 0.1Hz to 10Hz,
LT1236-5
TIME (MINUTES)
0




35
LT1236 G15


12
46


OUTPUT VOLTAGE NOISE (5µV/DIV)

5µV (1ppm)
FILTERING = 1 ZERO AT 0.1Hz
2 POLES AT 10Hz
Output Voltage Noise
BANDWIDTH (Hz)
10
8
RMS NOISE (µV)
12
16
14
10
6
2
100 1k 10k
LT1236 G07
4
0
C
OUT
= 0
FILTER = 1 POLE
f
LOW
= 0.1Hz
LT1236-10
LT1236-5
Output Voltage Temperature Drift
LT1236-5
OUTPUT CURRENT (mA)
–10
OUTPUT CHANGE (mV)
1
3
5
4
2
0
–2
–4
6
LT1236 G09
–1
–3
–5
–6–8 –4 0 4 8
–2
2
10
V
IN
= 8V
SOURCING SINKING
Load Regulation LT1236-5
Quiescent Current, LT1236-5
INPUT VOLTAGE (V)
0
0
INPUT CURRENT (mA)
0.2
0.6
0.8
1.0
3530
1.8
LT1236 G10
0.4
5 10152025 40
1.2
1.4
1.6
T
J
= – 55°C
T
J
= 25°C
T
J
= 125°C
I
OUT
= 0
Thermal Regulation, LT1236-5
TIME (ms)

OUTPUT CHANGE (mV)

–1.0
– 0.5
140
LT1236 G12



20
60
100


0
0
40
80
120
LOAD
REGULATION
THERMAL 
REGULATION*
I
LOAD
= 10mA
*INDEPENDENT OF TEMPERATURE COEFFICIENT
V
IN
= 25V
∆POWER = 200mW
Sink Mode* Current Limit,
LT1236-5
OUTPUT VOLTAGE (V)
0
0
CURRENT INTO OUTPUT (mA)
10
30
40
50
4
8
10 18
LT1236 G11
20
26
12
14
16
60
V
IN
= 8V
*NOTE THAT AN INPUT VOLTAGE IS REQUIRED 
FOR 5V UNITS.
Load Transient Response,
LT1236-5, C
LOAD
= 0
TIME (µs)

OUTPUT CHANGE (50mV/DIV)
2
LT1236 G13
102413
3
0
4
I
SOURCE
= 2-10mA
I
SOURCE
= 0.5mA
I
SINK
= 0
I
SINK
= 0.2mA
I
SINK
= 2-10mA
50mV 50mV
∆I
SINK
= 100µA
P-P
∆I
SOURCE
= 100µA
P-P
I
SOURCE
= 0
Load Transient Response,
LT1236-5, C
LOAD
= 1000pF
TIME (µs)

OUTPUT CHANGE (20mV/DIV)
10
LT1236 G14
501020515
15
0
20
I
SOURCE
= 2-10mA
I
SOURCE
= 0.2mA
I
SINK
= 0
I
SINK
= 0.2mA
I
SINK
= 2-10mA
20mV 20mV
∆I
SINK
= 100µA
P-P
∆I
SOURCE
= 100µA
P-P
I
SOURCE
= 0
TEMPERATURE (°C)
–40
5.000
OUTPUT VOLTAGE (V)
5.002
5.005
0
40
60
LT1236 G08
5.001
5.004
5.003
–20
20
80
100