LT1999MPMS8-50#TRPBF Linear Technology, LT1999MPMS8-50#TRPBF Datasheet - Page 12

• Manufacturer Part Number: LT1999MPMS8-50#TRPBF
• Description: SC-Amps/Current Sense, High Voltage, Bidirectional Current Sense Amplifier
• Manufacturer: Linear Technology

Specifications of LT1999MPMS8-50#TRPBF

• Input Bias Current: 137.5µA
• Output Current Per Channel: 26mA
• Input Offset Voltage: 1.5mV
• Bandwidth: 1.2MHz
• Cmrr: 120dB
• Slew Rate: 3V/µs
• Supply Voltage Range: 4.5V To 5.5V
• Supply Current: 3µA
• Rohs Compliant: Yes
• No. Of Amplifiers: 2

LT1999-10/LT1999-20/
LT1999-50
PIN FUNCTIONS
V
tied internally together. The specifi ed range of operation
is 4.5V to 5.5V, but lower supply voltages (down to ap-
proximately 4V) is possible although the LT1999 is not
tested or characterized below 4.5V. See the Applications
Information section.
+IN (Pin 2): Positive Sense Input Pin.
–IN (Pin 3): Negative Sense Input Pin.
GND (Pin 5): Ground Pin.
REF (Pin 6): Reference Pin Input. The REF pin sets the
output common mode level and is set halfway between
V
tors. The default open circuit potential of the REF pin is
mid-supply. It can be overdriven by an external voltage
source cable of driving 80k to a mid-supply potential (see
the Electrical Characteristics table for its specifi ed input
voltage range).
12
+
+
(Pins 1, 4): Power Supply Voltage. Pins 1 and 4 are
and GND using a divider made of two 160k resis-
OUT (Pin 7): Voltage Output. V
where A
voltage. The output amplifi er has a low impedance output
and is designed to drive up to 200pF capacitive loads
directly. Capacitive loads exceeding 200pF should be
decoupled with an external resistor of at least 100Ω.
SHDN (Pin 8): Shutdown Pin. When pulled to within 0.5V
of GND (Pin 5), will place the LT1999 into low power
shutdown. If the pin is left fl oating, an internal 2μA pull-
up current source will place the LT1999 into the active
(amplifying) state.
V
is the gain, and V
OSI
OUT
is the input referred offset
= A
V
•(V
SENSE
± V
OSI
1999fa
),