LT1995 Linear Technology, LT1995 Datasheet - Page 5

• Manufacturer Part Number: LT1995
• Description: 32MHz - 1000V/us Gain Selectable Amplifier
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
Difference Amplifier Configuration. V
SYMBOL
V
V
V
CMRR
PSRR
V
I
SR
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The inputs are protected by diodes connected to V
If an input goes beyond the supply range, the input current should be
limited to 10mA.
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum.
Note 4: The LT1995C and LT1995I are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 5: The LT1995C is guaranteed to meet specified performance from
0°C to 70°C. The LT1995C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LT1995I is guaranteed to meet
specified performance from –40°C to 85°C.
SC
S
OS
OS
OS_OA
OUT
TC
PARAMETER
Input Offset Voltage
Referred to Input (Note 7)
Input Offset Voltage Drift
Referred to Input (Note 9)
Op Amp Input Offset Voltage
(Note 10)
Input Voltage Range
Common Mode Rejection Ratio V
Referred to Input
Power Supply Rejection Ratio
Output Voltage Swing
Short-Circuit Current
Slew Rate
Supply Current
REF
CONDITIONS
G = 1 (MS10)
G = 1 (DD10)
G = 2 (MS10)
G = 2 (DD10)
G = 4 (MS10)
G = 4 (DD10)
G = 1 (MS10)
G = 1 (DD10)
G = 1 (MS10)
G = 1 (DD10)
G = 1 (MS10)
G = 1 (DD10)
G = 1 (MS10)
G = 1 (DD10)
G = 1
V
V
V
V
P1 = M1 = 0V, G = 1, V
R
R
R
R
G = 1
G = –2, V
Measured at V
G = 1
= V
CM
CM
CM
CM
CM
L
L
L
L
= 1k
= 500Ω
= 500Ω
= 500Ω
CM
= ±15V, G = 1
= ±15V, G = 2
= ±15V, G = 4
= ±5V, G = 1
= ±1V, G = 1
= 0V and unused gain pins are unconnected, unless otherwise noted.
OUT
S
+
= ±12V, P2 = 0V
OUT
and V
= ±10V
S
The
–
.
S
= ±2.5V to ±15V
●
denotes the specifications which apply over the –40°C ≤ T
Note 6: Thermal resistance (θ
connected to the leads. The specified values are for short traces connected
to the leads. If desired, the thermal resistance can be reduced slightly in
the MS package to about 130°C/W by connecting the used leads to a
larger metal area. A substantial reduction in thermal resistance down to
about 50°C/W can be achieved by connecting the Exposed Pad on the
bottom of the DD package to a large PC board metal area which is either
open-circuited or connected to V
Note 7: Input offset voltage is pulse tested and is exclusive of warm-up
drift. V
configuration. The equivalent input offset of the internal op amp can be
calculated from V
Note 8: Full Power bandwidth is calculated from the slew rate measure-
ment: FPBW = SR/2πV
Note 9: This parameter is not 100% tested.
Note 10: The input offset of the internal op amp is calculated from the
input offset voltage: V
OS
V
±15V
±15V
±15V
±15V
±15V
±15V
±5V
±5V
±2.5V
±2.5V
±15V
±15V
±2.5V, ±5V, ±15V
±2.5V, ±5V, ±15V
±15V
±5V
±2.5V
±15V
±15V
±15V
±5V
±2.5V
±15V
±15V
±5V
±2.5V
±15V
±15V
±15V
±5V
and V
SUPPLY
OS
OS_OA
TC refer to the input offset of the difference amplifier
OS_OA
P
.
= V
OS
= V
JA
• G/(G +1).
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
OS
) varies with the amount of PC board metal
S
–
• G/(G +1).
.
±12.5
MIN
±3.3
±1.1
±50
±15
±13
550
±5
±1
62
68
72
61
57
74
www.DataSheet4U.com
±15.5
±13.5
±105
±5.5
±1.5
TYP
±14
900
1.2
1.6
0.9
1.2
0.7
0.9
1.1
1.4
1.1
1.5
0.6
0.8
8.0
7.6
10
10
77
83
86
72
66
86
±4
±2
MAX
3.75
11.0
10.4
LT1995
7.5
5.5
8.5
7.5
7.5
6.5
13
10
13
13
26
35
6
A
≤ 85°C.
UNITS
µV/°C
µV/°C
1995fb
5
V/µs
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
dB
dB
dB
dB
dB
dB
V
V
V
V
V
V
V