LT1782HS5 LINER [Linear Technology], LT1782HS5 Datasheet - Page 12

• Manufacturer Part Number: LT1782HS5
• Description: Micropower, Over-The-Top SOT-23, Rail-to-Rail Input and Output Op Amp
• Manufacturer: LINER [Linear Technology]

SI PLIFIED SCHE ATIC
APPLICATIO S I FOR ATIO
LT1782
typically 100dB. When the LT1782 switches between
input stages, there is significant nonlinearity in the CMRR.
Lower load resistance increases the output crossover
distortion but has no effect on the input stage transition
distortion. For lowest distortion, the LT1782 should be
operated single supply, with the output always sourcing
current and with the input voltage swing between ground
and (V
istics curves, “Total Harmonic Distortion + Noise vs Ouput
Voltage Amplitude.”
Gain
The open-loop gain is almost independent of load when
the output is sourcing current. This optimizes perfor-
12
W
SHDN
Q26
J1
+
– 0.8V). See the Typical Performance Character-
Q25
Q23
+
2 A
U
Q24
R1
30k
Q5
U
Q1
Q4
W
– IN
+IN
Q6
W
R2
R3
6k
6k
D4
U
D5
Q9
Q7
Q8
D1
Q10
mance in single supply applications where the load is
returned to ground. The typical performance curve of
open-loop gain for various loads shows the details.
Shutdown
The 6-lead part includes a shutdown feature that disables
the part, reducing quiescent current and making the output
high impedance. The part can be shut down by bringing the
SHDN pin 1.2V or more above V
supply current is about 5 A and the output leakage current
is less than 1 A (V
SHDN pin can be tied to V
Performance Characteristics curves, “Supply Current vs
Shutdown Pin Voltage.”
Q11
Q2
Q12
Q13
R4
40k
–
V
Q14
R5
40k
OUT
–
Q15
or left floating. See the Typical
D3
V
+
). In normal operation, the
Q16
–
Q3
. When shut down, the
Q17
Q18
Q19
Q20
Q22
Q21
1782 SS
V
OUT
V
+
–