LTC6257 Linear Technology, LTC6257 Datasheet - Page 6

• Manufacturer Part Number: LTC6257
• Description: 65uA Power Efficient Rail-to-Rail I/O Op Amps
• Manufacturer: Linear Technology

LTC6255/LTC6256/LTC6257
1.8V electricAl chArActeristics
operating temperature range, otherwise specifications are at T
unconnected.
SYMBOL PARAMETER
V
I
I
I
V
V
t
t
BW
GBW
T
SR
FPBW
THD+N
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The inputs are protected by back-to-back diodes as well as ESD
protection diodes to each power supply. If the differential input voltage
exceeds 3.6V or the input extends more than 500mV beyond the power
supply, the input current should be limited to less than 10mA.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output is shorted
indefinitely.
Note 4: The LTC6255C/LTC6256C/LTC6257C and LTC6255I/LTC6256I/
LTC6257I are guaranteed functional over the temperature range of
–40°C to 85°C. The LTC6255H/LTC6256H/LTC6257H are guaranteed
functional over the temperature range of –40°C to 125°C.

SC
S
SHDN
ON
OFF
S
OH
IL
IH
Output Swing High (Input Overdrive 30mV),
Measured from V
Output Short-Circuit Current
Supply Current per Amplifier
Supply Current in Shutdown
Shutdown Pin Current
SHDN Input Low Voltage
SHDN Input High Voltage
Turn-On Time
Turn-Off Time
–3dB Closed Loop Bandwidth
Gain-Bandwidth Product
Settling Time, 0.3V to 1.5V, Unity Gain
Slew Rate
Full Power Bandwidth (Note 8)
Total Harmonic Distortion and Noise
+
CONDITIONS
No Load
I
I
V
V
Disable
Enable
A
f = 200kHz
0.1%
0.01%
A
1.2V
f = 500Hz, A
V
SOURCE
SOURCE
SHDN
SHDN
V
V
IN
= 1
= –1, V
= 0.25V to 0.75V
P-P
= 0.5V
= 1.3V
= 100µA
= 1mA
OUT
A
V
= 25°C. V
= 2, R
= 0.3V to 1.5V, C
The
Note 5: The LTC6255C/LTC6256C/LTC6257C are guaranteed to meet
the specified performance from 0°C to 70°C. The LTC6255C/LTC6256C/
LTC6257C are designed, characterized and expected to meet specified
performance from –40°C to 85°C but are not tested or QA sampled at
these temperatures. The LTC6255I/LTC6256I/LTC6257I are guaranteed
to meet specified performance from –40°C to 85°C. The LTC6255H/
LTC6256H/LTC6257H are guaranteed to meet specified performance
from –40°C to 125°C.
Note 6: Thermal resistance varies with the amount of PC board metal
connected to the package. The specified values are for short traces
connected to the leads.
Note 7: The input bias current is the average of the currents through the
positive and negative input pins.
Note 8: Full power bandwidth is calculated from the slew rate FPBW =
SR/π • V
L
= 4kΩ, V
l
SUPPLY
denotes the specifications which apply over the full
P-P
OUTP-P
LOAD
= 1.8V, V
.
= 10pF
= 1V
CM
= V
OUT
= 0.4V, C
l
l
l
l
l
l
l
l
l
l
l
l
–480
–160
MIN
12.5
0.75
3.5
1.3
2.4
1.8
0.9
53
35
L
= 10pF , V
www.DataSheet4U.com
0.006
–350
TYP
–40
400
1.4
1.5
24
30
75
17
60
84
5
3
4
6
4
6
SHDN
MAX
135
150
2.0
3.0
0.5
55
60
65
75
68
83
is
UNITS
625567f
MHz
MHz
MHz
V/µs
V/µs
kHz
mV
mV
mV
mV
mV
mV
mA
mA
µA
µA
µA
µA
nA
nA
dB
µs
µs
µs
µs
%
V
V