LT1812(RevA) View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1812 Datasheet PDF : 16 Pages
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LT1812
ELECTRICAL CHARACTERISTICS
– 40°C ≤ TA ≤ 85°C, VS = 5V, VCM = 2.5V, RL to 2.5V unless otherwise noted (Notes 8, 10).
SYMBOL PARAMETER
CONDITIONS
VOS
∆VOS/∆T
IOS
IB
VCM
Input Offset Voltage
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
Input Voltage Range (Positive)
Input Voltage Range (Negative)
(Note 4)
(Note 7)
CMRR
AVOL
VOUT
IOUT
ISC
SR
GBW
ISHDN
IS
Common Mode Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Swing (Positive)
Maximum Output Swing (Negative)
Maximum Output Current
Output Short-Circuit Current
Slew Rate
Gain Bandwidth Product
SHDN Pin Current
Supply Current
VCM = 1.5V to 3.5V
VOUT = 1.5V to 3.5V, RL = 500Ω
VOUT = 2.0V to 3.0V, RL = 100Ω
RL = 500Ω, 30mV Overdrive
RL = 100Ω, 30mV Overdrive
RL = 500Ω, 30mV Overdrive
RL = 100Ω, 30mV Overdrive
VOUT = 3.5V or 1.5V, 30mV Overdrive
VOUT = 2.5V, 1V Overdrive (Note 3)
AV = – 1 (Note 5)
f = 200kHz
SHDN > V – + 2.0V (On) (Note 11)
SHDN < V – + 0.4V (Off) (Note 11)
SHDN > V – + 2.0V (On) (Note 11)
SHDN < V – + 0.4V (Off) (Note 11)
MIN TYP MAX
3.5
10
30
600
±6
3.5
1.5
70
0.6
0.4
3.7
3.5
1.3
1.5
± 17
± 40
125
50
±2
– 100
5
100
UNITS
mV
µV/°C
nA
µA
V
V
dB
V/mV
V/mV
V
V
V
V
mA
mA
V/µs
MHz
µA
µA
mA
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life of
the device may be impaired.
Note 2: Differential inputs of ±3V are appropriate for transient operation only,
such as during slewing. Large sustained differential inputs can cause
excessive power dissipation and may damage the part.
Note 3: A heat sink may be required to keep the junction temperature below
absolute maximum when the output is shorted indefinitely.
Note 4: Input offset voltage is pulse tested and is exclusive of warm-up drift.
Note 5: Slew rate is measured between ±2V on the output with ±3V input for
±5V supplies and 2VP-P on the output with a 3VP-P input for single 5V
supplies.
Note 6: Full power bandwidth is calculated from the slew rate:
FPBW = SR/2πVP.
Note 7: This parameter is not 100% tested.
Note 8: The LT1812C is guaranteed to meet specified performance from
0°C to 70°C. The LT1812C 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 LT1812I is guaranteed to meet specified
performance from –40°C to 85°C.
Note 9: Thermal resistance varies with the amount of PC board metal
connected to the package. The nominal values are for short traces
connected to the pins. The thermal resistance can be substantially reduced
by connecting Pin 2 of the 5-lead or 6-lead SOT-23 or Pin 4 of the SO-8 to a
large metal area.
Note 10: For the 8-lead SO and 6-lead SOT-23 parts, the electrical
characteristics apply to the “ON” state, unless otherwise noted. These parts
are in the “ON” state when either SHDN is not connected,
or SHDN > V– +␣ 2.0V.
Note 11: The shutdown (SHDN) feature is not available on the 5-lead
SOT-23 parts. These parts are always in the “ON” state.
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