Datasheet

LTC6652
5
6652fe
For more information www.linear.com/6652
FREQUENCY (kHz)
0.01
NOISE VOLTAGE (nV/√Hz)
0.1 1 10
6652 G22
300
200
100
0
400
TIME (1 SECOND/DIV)
OUTPUT NOISE (1µV/DIV)
6652 G21
INPUT VOLTAGE (V)
0
OUTPUT VOLTAGE (V)
1.2502
1.2504
1.2506
6 10
6652 G18
1.2500
1.2498
2 4
8 12 14
1.2496
1.2494
125°C
–40°C
25°C
typical perForMance characteristics
1.25V Load Regulation (Sinking)
1.25V Low Frequency 0.1Hz to
10Hz Transient Noise
1.25V Output Voltage Noise
Spectrum
1.25 Sinking Current Without
Output Capacitor
1.25 Sinking Current with Output
Capacitor
1.25V Output Voltage
Temperature Drift 1.25V Load Regulation (Sourcing) 1.25V Line Regulation
TEMPERATURE (°C)
–80
REFERENCE VOLTAGE (V)
1.2500
1.2505
1.2510
40 160
6652 G17
1.2495
1.2490
–40 0
80
120
3 TYPICAL PARTS
OUTPUT CURRENT (mA)
0.1
–250
–200
OUTPUT VOLTAGE CHANGE (ppm)
–150
–100
0
1
6652 G19
–50
10
125°C
25°C
–40°C
OUTPUT CURRENT (mA)
0.1
0
OUTPUT VOLTAGE CHANGE (ppm)
100
200
300
50
150
250
350
400
1 10
–40°C
125°C
6652 G20
25°C
500µs/DIV
V
OUT
500mV/DIV
C
OUT
= 0µF
I
OUT
1mA
0mA
6652 G23
500µs/DIV
V
OUT
500mV/DIV
C
OUT
= 1µF
I
OUT
1mA
0mA
6652 G24
LOAD CURRENT (mA)
NO CAP
OUTPUT CAPACITOR
100pF
1nF
10nF
0.1µF
1µF
10µF
–5 –1 0 5
6652 G16
REGION OF
MARGINAL
STABILITY
1.25V Stability with Output
Capacitance
Characteristic curves are similar for most
LTC6652s. Curves from the LTC6652-1.25, LTC6652-2.5 and the LTC6652-5 represent the extremes and typical of the voltage options.
Characteristic curves for other output voltages fall between these curves and can be estimated based on their output.