LT1789-10 查看數據表（PDF） - Linear Technology

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LT1789-10

Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifiers

Linear Technology 

LT1789-1/LT1789-10

ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the temperature range of

–40°C ≤ TA ≤ 85°C. VS = ±15V, RL = 20k, VCM = VREF = 0V, unless otherwise noted. (Note 4)

LT1789-1

LT1789-10

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX MIN TYP MAX UNITS

PSRR Power Supply Rejection Ratio

LT1789-1, VS = ±1.25V to ±16V

LT1789-10, VS = ±1.50V to ±16V

G=1

l 90

dB

G = 10

l 100

96

dB

G = 100, 1000

l 102

102

dB

Minimum Supply Voltage

l

±1.25

±1.50

V

IS

Supply Current

VO

Output Voltage Swing

SR

Slew Rate

VOUT = ±10V

l

l ±14.15

l 0.008

160

±14.15

0.024

160

µA

V

V/µs

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Does not include the effect of the external gain resistor RG.

Note 3: This parameter is not 100% tested.

Note 4: The LT1789C-1/ LT1789C-10 is guaranteed to meet specified

performance from 0°C to 70°C and is designed, characterized and

expected to meet these extended temperature limits, but is not tested at

–40°C and 85°C. The LT1789I-1/ LT1789I-10 is guaranteed to meet the

extended temperature limits.

Note 5: Hysteresis in offset voltage is created by package stress that

differs depending on whether the IC was previously at a higher or lower

temperature. Offset voltage hysteresis is always measured at 25°C, but

the IC is cycled to 85°C I-grade (or 70°C C-grade) or – 40°C I-grade

(0°C C-grade) before successive measurement. 60% of the parts will

pass the typical limit on the data sheet.

Note 6: VS = 5V limits are guaranteed by correlation to VS = 3V and

VS = ±15V tests.

Note 7: VS = 3V limits are guaranteed by correlation to VS = 5V and

VS = ±15V tests.

Note 8: This parameter is not tested at VS = 3V on the LT1789-10 due

to an increase in sensitivity to test system noise. Actual performance is

expected to be similar to performance at VS = 5V.

TYPICAL PERFORMANCE CHARACTERISTICS (LT1789-1, LT1789-10)

Supply Current vs Supply Voltage

120

110

100

125°C

90

80

25°C

70

60 –55°C

50

40

30

20

0 5 10 15 20 25 30 35 40

TOTAL SUPPLY VOLTAGE (V)

1789 G01

Input Bias Current

vs Temperature

0

VS = 5V, 0V

VCM = 2.5V

–5

–10

–15

–20

–25

–50 –25

0 25 50 75

TEMPERATURE (°C)

100 125

1789 G02

Input Bias Current

vs Common Mode Input Voltage

–10

–55°C

–12

–14

125°C

–16

–18

25°C

–20

85°C

–22

–24

–26

–28

VS = 5V, 0V

VREF = 2.5V

–30

–0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

COMMON MODE INPUT VOLTAGE (V)

1789 G03

1789fc

9

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