4

LT1797

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

CMRR

Common Mode Rejection Ratio

q

83

96

dB

q

66

76

dB

Large-Signal Voltage Gain

400

1000

V/mV

q

300

V/mV

Output Voltage Swing LOW

No Load, Input Overdrive = 30mV

q

– 4.99

– 4.98

V

q

– 4.92

– 4.87

V

q

– 4.85

– 4.79

V

Output Voltage Swing HIGH

No Load, Input Overdrive = 30mV

q

4.84

4.95

V

q

4.70

4.80

V

q

4.61

4.70

V

Short-Circuit Current (Note 2)

Short to GND

30

50

mA

PSRR

Power Supply Rejection Ratio

q

80

90

dB

Supply Current

1.40

2.25

mA

q

2.70

mA

GBW

Gain Bandwidth Product

f = 100kHz

6.5

11

MHz

0

q

5.5

MHz

–40

q

5.0

MHz

SR

Slew Rate

1.50

2.50

V/

µs

0

q

1.25

V/

µs

–40

q

1.10

V/

µs

Output Rise Time

55

ns

Output Fall Time

55

ns

Settling Time

2.6

µs

FPBW

Full-Power Bandwidth (Note 6)

100

kHz

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.

Note 3: The LT1797C is guaranteed to meet 0

°C to 70°C specifications

and is designed, characterized and expected to meet the extended

temperature limits, but is not tested at –40

°C and 85°C. The LT1797I is

guaranteed to meet specified performance from – 40

°C to 85°C.

Note 4: This parameter is not 100% tested.

Note 6: Full-power bandwidth is calculated from the slew rate:

FPBW = SR/2

ELECTRICAL CHARACTERISTICS