Datasheet

LTC6246/LTC6247/LTC6248
9
624678fa
Typical perForMance characTerisTics
Supply Current Per Amplifier
vs SHDN Pin Voltage
SHDN Pin Current
vs SHDN Pin Voltage
Input Noise Voltage and Noise
Current vs Frequency
Input Bias Current vs Temperature
Supply Current
vs Supply Voltage (Per Amplifier)
0.1Hz to 10Hz Voltage Noise
TIME (1s/DIV)
0
VOLTAGE NOISE (500nV/DIV)
1.5
V
S
= ±2.5V
1.0
0.5
0
0.5
–1.0
–1.5
1 73 9
624678 G14
104 5 62 8
TOTAL SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT (mA)
1.20
1.00
0.80
0.60
0.40
0.20
0
1 3
624678 G16
T
A
= 125°C
T
A
= 25°C
T
A
= –55°C
4 52
TEMPERATURE (°C)
–55
INPUT BIAS CURRENT (nA)
700
600
300
–100
400
500
0
200
100
–200
355–25 95
624678 G13
12565
V
S
= 5V, 0V
V
CM
= 4.5V
V
CM
= 2.5V
FREQUENCY (Hz)
1
VOLTAGE NOISE (nV/√Hz)
CURRENT NOISE (pA/√Hz)
1000
e
n
, V
CM
= 4.5V
e
n
, V
CM
= 2.5V
i
n
, V
CM
= 2.5V
i
n
, V
CM
= 4.5V
100
10
1.0
0.1
10 1k 10M
624678 G15
10k 100k 1M100
SHDN PIN VOLTAGE (V)
0
SUPPLY CURRENT (mA)
1.25
1.00
0.75
0.50
0.25
0
2.521.510.5 3.5
624678 G17
5
125°C
V
S
= 5V, 0V
25°C
–55°C
4 4.53
SHDN PIN VOLTAGE (V)
0
SHDN PIN CURRENT (µA)
0.25
0
–0.25
–0.50
–0.75
–1.00
–1.25
–1.50
–1.75
–2.00
–2.25
–2.50
2.521.510.5 3.5
624678 G18
5
125°C
V
S
= 5V, 0V
SHUTDOWN CURRENT
25°C
–55°C
4 4.53
Output Saturation Voltage
vs Load Current (Output High)
Minimum Supply Voltage,
V
CM
= V
S
/2 (PNP Operation)
Minimum Supply Voltage,
V
CM
= V
+
– 0.5V (NPN Operation)
TOTAL SUPPLY VOLTAGE (V)
2
OFFSET VOLTAGE (mV)
12
10
8
6
4
2
0
–2
2.5 3.5
624678 G19
5.5
125°C
25°C
–55°C
4 4.5 53
TOTAL SUPPLY VOLTAGE (V)
2
OFFSET VOLTAGE (mV)
5
4
3
2
1
0
–1
2.5 3.5
624678 G20
5.5
125°C
25°C
–55°C
4 4.5 53
V
CM
= V
CC
– 0.5V
LOAD CURRENT (mA)
OUTPUT HIGH SATURATION VOLTAGE (V)
624678 G21
10
1
0.1
0.01
0.01 10 10010.1
V
S
= ±2.5V
T
A
= –55°C
T
A
= 125°C
T
A
= 25°C