LTC6248 Linear Technology Corporation, LTC6248 Datasheet - Page 7

• Manufacturer Part Number: LTC6248
• Description: (LTC6246 - LTC6248) 1mA Power Efficient Rail-to-Rail I/O Op Amps
• Manufacturer: Linear Technology Corporation

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ELECTRICAL CHARACTERISTICS
specifi ed temperature range, otherwise specifi cations are at T
1.35V, unless otherwise noted.
SYMBOL
FPBW
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. If any of
the input or shutdown pins goes 300mV beyond either supply or the
differential input voltage exceeds 1.4V the input current should be limited
to less than 10mA. This parameter is guaranteed to meet specifi ed
performance through design and/or characterization. It is not production
tested.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output current is high.
Note 4: The LTC6246C/LTC6247C/LTC6248C and LTC6246I/LTC6247I/
LTC6248I are guaranteed functional over the temperature range of –40°C
to 85°C. The LTC6246H/LTC6247H/LTC6248H are guaranteed functional
over the temperature range of –40°C to 125°C.
Note 5: The LTC6246C/LTC6247C/LTC6248C are guaranteed to meet
specifi ed performance from 0°C to 70°C. The LTC6246C/LTC6247C/
LTC6248C are designed, characterized and expected to meet specifi ed
performance from –40°C to 85°C but are not tested or QA sampled at
these temperatures. The LTC6246I/LTC6247I/LTC6248I are guaranteed
to meet specifi ed performance from –40°C to 85°C. The LTC6246H/
LTC6247H/LTC6248H are guaranteed to meet specifi ed performance from
–40°C to 125°C.
TYPICAL PERFORMANCE CHARACTERISTICS
22
20
18
16
14
12
10
8
6
4
2
0
–375
V
(MS, PNP Stage)
V
V
OS
S
CM
= 5V, 0V
–250
= 2.5V
Distribution, V
PARAMETER
Full Power Bandwidth
Crosstalk
INPUT OFFSET VOLTAGE (μV)
–150
–50
CM
50
= V
150
S
/2
250
624678 G01
350
25
20
15
10
5
0
–175
V
(TSOT-23, PNP Stage)
V
V
OS
S
CM
= 5V, 0V
–125
CONDITIONS
V
A
V
= 2.5V
Distribution, V
OUT
V
OUT
(V
INPUT OFFSET VOLTAGE (μV)
= –1, R
–75
S
A
= 2V
= 2V
= 25°C. For each amplifi er V
= 2.7V)
P-P
P-P
L
–25
= 1k to Half Supply,
, f = 1MHz
(Note 13)
Note 6: Minimum supply voltage is guaranteed by power supply rejection
ratio test.
Note 7: The input bias current is the average of the average of the currents
through the positive and negative input pins.
Note 8: Matching parameters are the difference between amplifi ers A and
D and between B and C on the LTC6248; between the two amplifi ers on the
LTC6247.
Note 9: Thermal resistance varies with the amount of PC board metal
connected to the package. The specifi ed values are with short traces
connected to the leads with minimal metal area.
Note 10: The output voltage is varied from 0.5V to 4.5V during
measurement.
Note 11: Middle 80% of the output waveform is observed. R
supply.
Note 12: The output voltage is varied from 0.5V to 2.2V during
measurement.
Note 13: FPBW is determined from distortion performance in a gain of +2
confi guration with HD2, HD3 < –40dBc as the criteria for a valid output.
Note 14: Differential gain and phase are measured using a Tektronix
TSG120YC/NTSC signal generator and a Tektronix 1780R video
measurement set.
LTC6246/LTC6247/LTC6248
25
CM
The
= V
75
S
l
/2
125
denotes the specifi cations which apply across the
624678 G02
175
S
= 2.7V, 0V; V
16
14
12
10
–2000
8
6
4
2
0
V
(MS, NPN Stage)
V
V
OS
S
CM
MIN
= 5V, 0V
= 4.5V
Distribution, V
–1200
INPUT OFFSET VOLTAGE (μV)
SHDN
TYP
–90
–400
3.3
= 2V; V
CM
400
CM
MAX
= V
= V
L
= 1k at half
+
1200
OUT
– 0.5V
624678 G03
UNITS
624678f
=
7
MHz
2000
dB