Datasheet

6
LT1638/LT1639
16389fc
Note 5: V
S
= 5V limits are guaranteed by correlation to V
S
= 3V and
V
S
= ±15V or V
S
= ±22V tests.
Note 6: V
S
= 3V limits are guaranteed by correlation to V
S
= 5V and
V
S
= ±15V or V
S
= ±22V tests.
Note 7: Guaranteed by correlation to slew rate at V
S
= ±15V, and GBW at
V
S
= 3V and V
S
= ±15V tests.
Note 8: This specification implies a typical input offset voltage of 2mV at
V
CM
= 44V and a maximum input offset voltage of 5mV at V
CM
= 44V.
Note 9: This parameter is not 100% tested.
Note 10: The θ
JA
specified for the DD package is with minimal PCB heat
spreading metal. Using expanded metal area on all layers of a board
reduces this value.
The ● denotes the specifications which apply over the full operating temperature range of –40°C ≤ T
A
≤ 125°C, otherwise
specifications are at T
A
= 25°C. V
S
= ±15V, V
CM
= 0V, V
OUT
= 0V, V
SHDN
= V
–
unless otherwise specified. (Note 4)
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2: A heat sink may be required to keep the junction temperature
below absolute maximum. This depends on the power supply voltage
and how many amplifiers are shorted.
Note 3: The LT1638C/LT1639C and LT1638I/LT1639I are guaranteed
functional over the operating temperature range of –40°C to 85°C. The
LT1638H/LT1639H are guaranteed functional over the operating
temperature range of – 40°C to 125°C.
Note 4: The LT1638C/LT1639C are guaranteed to meet specified
performance from 0°C to 70°C and are designed, characterized and
expected to meet specified performance from –40°C to 85°C but not
tested or QA sampled at these temperatures. The LT1638I/LT1639I are
guaranteed to meet specified performance from –40°C to 85°C. The
LT1638H/LT1639H are guaranteed to meet specified performance from
–40°C to 125°C.
LT1638H/LT1639H
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1638S8 250 850 µV
● 3.4 mV
LT1639S 350 950 µV
● 3.6 mV
Input Offset Voltage Drift (Note 9) ● 15 µV/°C
I
OS
Input Offset Current ● 25 nA
I
B
Input Bias Current ● 250 nA
CMRR Common Mode Rejection Ratio V
CM
= –14.7V to 29V ● 72 dB
A
VOL
Large-Signal Voltage Gain V
O
= ±14V, R
L
= 10k 200 500 V/mV
● 15 V/mV
V
O
Output Voltage Swing No Load ● ±14.8 V
I
OUT
= ± 5mA ● ±14 V
I
OUT
= ±10mA ● ±13.4 V
PSRR Power Supply Rejection Ratio V
S
= ±1.5V to ±22V ● 84 dB
Minimum Supply Voltage ● ±1.35 V
I
S
Supply Current 205 280 µA
● 550 µA
GBW Gain Bandwidth Product f = 5kHz 750 1200 kHz
● 400 kHz
SR Slew Rate A
V
= –1, R
L
= ∞, V
O
= ±10V, 0.225 0.4 V/µs
Measure at V
O
= ±5V ● 0.1 V/µs
ELECTRICAL CHARACTERISTICS