Datasheet

LT1789-1/LT1789-10
12
1789fb
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage Swing
vs Load Current Gain vs Frequency Slew Rate vs Temperature
Common Mode Rejection Ratio
vs Frequency
Negative Power Supply Rejection
Ratio vs Frequency
Positive Power Supply Rejection
Ratio vs Frequency
Output Impedance vs Frequency Overshoot vs Capacitive Load
Settling Time to 0.01% vs
Output Step
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE SWING—SOURCING (V)
OUTPUT VOLTAGE SWING—SINKING (V)
4.8
5.0
4.6
4.0
4.4
4.2
0.8
1.0
1.6
1.4
1.2
0.6
0
0.4
0.2
0.001 0.1 1 10
1789 G21
0.01
–55°C
–55°C
25°C
25°C
125°C
125°C
SOURCE
SINK
V
S
= 5V, 0V
V
REF
= 2.5V
FREQUENCY (Hz)
100
GAIN (dB)
80
70
60
50
40
30
20
10
0
–10
–20
1k 10k 100k
1789 G22
G = 100
G = 10
G = 1000
V
S
= 5V, 0V
V
REF
= 2.5V
TEMPERATURE (°C)
–50
SLEW RATE (V/μs)
100
1789 G23
050
0.12
0.11
0.10
0.09
0.08
0.07
0.06
0.05
0.04
–25 25 75 125
RISING
FALLING
FREQUENCY (Hz)
10
COMMON MODE REJECTION RATIO (dB)
120
110
100
90
80
70
60
50
40
100 1k 10k 20k
1789 G24
G = 10
G = 100, 1000
V
S
= 5V, 0V
V
REF
= 2.5V
FREQUENCY (Hz)
10
NEGATIVE POWER SUPPLY REJECTION RATIO (dB)
140
120
100
80
60
40
20
0
100 1k 10k 20
k
1789 G25
G = 100
G = 10
G = 1000
V
S
= 5V, 0V
V
REF
= 2.5V
INPUT REFERRED
FREQUENCY (Hz)
10
POSITIVE POWER SUPPLY REJECTION RATIO (dB)
140
120
100
80
60
40
20
0
100 1k 10k 20k
1789 G26
G = 10
G = 100, 1000
V
S
= 5V, 0V
V
REF
= 2.5V
INPUT REFERRED
FREQUENCY (Hz)
10
OUTPUT IMPEDANCE (Ω)
100
1k
10k
1k 10k 100k
1789 G27
1
100
V
S
= 5V, 0V
V
REF
= 2.5V
CAPACITIVE LOAD (pF)
40
30
50
60
70
80
10 100 1000
1789 G28
20
10
0
90
100
OVERSHOOT (%)
V
S
= 5V, 0V
V
REF
= 2.5V
V
OUT
= 100mV
P-P
G = 10
G = 100
G = 1000
(LT1789-10)
SETTLING TIME (μs)
0
OUTPUT STEP (V)
10
8
6
4
2
0
–2
–4
–6
–8
–10
400
1789 G29
100
200
300
500
V
S
= ±15V
R
L
= 20k
G = 10