LT1168CN8 查看數據表（PDF） - Linear Technology

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LT1168CN8

Low Power, Single Resistor Gain Programmable, Micropower Precision Instrumentation Amplifier

Linear Technology 

LT1168

ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the –40°C ≤ TA ≤ 85°C

temperature range. VS = ±15V, VCM = 0V, RL = 10k unless otherwise noted. (Note 5)

SYMBOL PARAMETER

CONDITIONS (Note 6)

LT1168AI

MIN TYP MAX

LT1168I

MIN TYP MAX

UNITS

VOST

VOSI

VOSIH

VOSO

VOSOH

VOSI/T

VOSO/T

IOS

IOS/T

IB

IB/T

VCM

CMRR

PSRR

IS

VOUT

IOUT

SR

VREF

Total Input Referred Offset Voltage VOST = VOSI + VOSO/G

Input Offset Voltage

Input Offset Voltage Hysteresis (Notes 7, 10)

Output Offset Voltage

Output Offset Voltage Hysteresis (Notes 7, 10)

Input Offset Drift (RTI)

(Note 9)

Output Offset Drift

(Note 9)

Input Offset Current

Input Offset Current Drift

Input Bias Current

Input Bias Current Drift

Input Voltage Range

Common Mode

Rejection Ratio

VS = ±2.3V to ±5V

VS = ±5V to ±18V

1k Source Imbalance,

VCM = 0V to ±10V

G=1

G = 10

G = 100

G = 1000

Power Supply

Rejection Ratio

VS = ±2.3V to ±18V

G=1

G = 10

G = 100

G = 1000

Supply Current

Output Voltage Swing

Output Current

VS = ±2.3V to ±5V

VS = ±5V to ±18V

Slew Rate

Voltage Range

(Note 9)

q

20

75

25 100

q

3.0

3.0

q

180 500

200 600

q

30

30

q

0.05 0.3

0.06 0.4

q

0.8

5

1

6

q

110 550

120 700

q

0.3

0.3

q

120 500

220 800

q

1.4

1.4

q –VS + 2.1

q –VS + 2.1

+VS – 1.3 –VS + 2.1

+VS – 1.4 –VS + 2.1

+VS – 1.3

+VS – 1.4

µV

µV

µV

µV

µV/°C

µV/°C

pA

pA/°C

pA

pA/°C

V

V

q

86

90

81

90

dB

q

98

105

95 105

dB

q 114 118

112 118

dB

q 116 133

112 133

dB

q 100 112

95 112

dB

q 120 125

115 125

dB

q 125 132

120 132

dB

q 128 140

125 140

dB

q

420 650

420 650

µA

q –VS + 1.4

q –VS + 1.6

+VS – 1.3 –VS + 1.4

+VS – 1.5 –VS + 1.6

+VS – 1.3

V

+VS – 1.5

V

q

15

22

15

22

mA

q 0.22 0.41

0.22 0.42

V/µs

q –VS + 1.6

+VS – 1.6 –VS + 1.6

+VS – 1.6

V

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be imparied.

Note 2: If the input voltage exceeds the supplies, the input current should

be limited to less than 20mA.

Note 3: A heat sink may be required to keep the junction temperature

below absolute maximum.

Note 4: The LT1168AC/LT1168C are guaranteed functional over the

operating temperature range of – 40°C and 85°C.

Note 5: The LT1168AC/LT1168C are guaranteed to meet specified

performance from 0°C to 70°C. The LT1168AC/LT1168C are designed,

characterized and expected to meet specified performance from – 40°C to

85°C but are not tested or QA sampled at these temperatures. The

LT1168AI/LT1168I are guaranteed to meet specified performance from

– 40°C to 85°C.

Note 6: Typical parameters are defined as the 60% of the yield parameter

distribution.

Note 7: Does not include the tolerance of the external gain resistor RG.

Note 8: This parameter is measured in a high speed automatic tester that

does not measure the thermal effects with longer time constants. The

magnitude of these thermal effects are dependent on the package used,

heat sinking and air flow conditions.

Note 9: This parameter is not 100% tested.

Note 10: 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.

5

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