Datasheet

11
623012fc
LT6230/LT6230-10
LT6231/LT6232
Typical perForMance characTerisTics
Open-Loop Gain Open-Loop Gain Open-Loop Gain
Offset Voltage vs Output Current Warm-Up Drift vs Time
Total Noise vs Total Source
Resistance
Output Saturation Voltage
vs Load Current (Output High) Minimum Supply Voltage
Output Short-Circuit Current
vs Power Supply Voltage
(LT6230/LT6231/LT6232)
LOAD CURRENT (mA)
OUTPUT SATURATION VOLTAGE (V)
623012 G07
0.01 0.1
0.01
10
1 10010
0.001
0.1
1
V
S
= 5V, 0V
T
A
= –55°C
T
A
= 125°C
T
A
= 25°C
TOTAL SUPPLY VOLTAGE (V)
0
OFFSET VOLTAGE (mV)
1.5
623012 G08
0.5 1 2
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
3 4 52.5 3.5 4.5
T
A
= –55°C
T
A
= 125°C
T
A
= 25°C
V
CM
= V
S
/2
POWER SUPPLY VOLTAGE (±V)
1.5
OUTPUT SHORT-CIRCUIT CURRENT (mA)
3
623012 GO9
2 2.5 3.5
70
60
40
20
50
30
10
0
–20
–40
–70
–60
–10
–30
–50
4 4.5 5
T
A
= 125°C
T
A
= –55°C
T
A
= –55°C
T
A
= 25°C
SINKING
SOURCING
T
A
= 25°C
T
A
= 125°C
OUTPUT VOLTAGE (V)
0
INPUT VOLTAGE (mV)
1.5
623012 G10
0.5 1 2
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
32.5
R
L
= 100Ω
R
L
= 1k
V
S
= 3V, 0V
T
A
= 25°C
OUTPUT VOLTAGE (V)
0
INPUT VOLTAGE (mV)
1.5
623012 G11
0.5 1 2
0
3 4 52.5 3.5 4.5
R
L
= 100Ω
R
L
= 1k
V
S
= 5V, 0V
T
A
= 25°C
2.5
2.0
1.5
1.0
0.5
–0.5
–1.0
–1.5
–2.0
–2.5
OUTPUT VOLTAGE (V)
–5
INPUT VOLTAGE (mV)
–2
623012 G12
–4 –3 –1
0
1 3 50 2 4
R
L
= 100Ω
R
L
= 1k
V
S
= ±5V
T
A
= 25°C
2.5
2.0
1.5
1.0
0.5
–0.5
–1.0
–1.5
–2.0
–2.5
OUTPUT CURRENT (mA)
–75
OFFSET VOLTAGE (mV)
623012 G13
–45 –15
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0 30 7560–60 –30 15 45
T
A
= –55°C
T
A
= 125°C
V
S
= ±5V
T
A
= 25°C
TIME AFTER POWER-UP (s)
0
CHANGE IN OFFSET VOLTAGE (µV)
60
623012 G14
20 100
30
28
24
20
16
26
22
18
14
12
10
140
40
80 120 160
T
A
= 25°C
V
S
= ±5V
V
S
= ±2.5V
V
S
= ±1.5V
SOURCE RESISTANCE (Ω)
1
TOTAL NOISE (nV/√Hz)
10
10 1k 10k 100k
623012 G15
0.1
100
100
V
S
= ±2.5V
V
CM
= 0V
f = 100kHz
UNBALANCED
SOURCE
RESISTORS
TOTAL NOISE
RESISTOR NOISE
AMPLIFIER NOISE VOLTAGE