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1112

Dual/Quad Low Power Precision, Picoamp Input Op Amps

Linear Technology 

LT1112/LT1114

ELECTRICAL CHARACTERISTICS VS = ±15V, –40°C ≤ TA ≤ 85°C, (Note 10)

SYMBOL PARAMETER

VOS

Input Offset Voltage

∆VOS

∆Temp

IOS

Average Input Offset Voltage Drift

Input Offset Current

IB

Input Bias Current

VCM

CMRR

PSRR

AVOL

Input Voltage Range

Common-Mode Rejection Ratio

Power Supply Rejection Ratio

Large-Signal Voltage Gain

VOUT

SR

IS

∆VOS

∆IB+

∆CMRR

∆PSRR

Output Voltage Swing

Slew Rate

Supply Current per Amplifier

Offset Voltage Match

(Note 5)

Offset Voltage Match Drift

(Notes 5)

Noninverting Bias Current Match

(Notes 5, 6)

Common-Mode Rejection Ratio

Power Supply Rejection Ratio

CONDITIONS (Note 2)

LT1112N8

LT1112S8, LT1114N/S

VS = ±1.2V

LT1112N8

LT1112S8, LT1114N/S

LT1114S

LT1114S

VCM = ±13.5V

VS = ±1.2V to ±20V

VO = ±12V, RL = 10kΩ

VO = ±10V, RL = 2kΩ

RL = 10kΩ

LT1112N8

LT1112S8, LT1114N/S

LT1112N8

LT1112S8, LT1114N/S

LT1114S

(Notes 5, 7)

(Notes 5, 7)

LT1112ACN8

LT1114ACN

LT1112N8/S8

LT1114CN/S

MIN TYP MAX MIN TYP MAX

q

30 110

q

40 135

q

55 200

35 135

45 160

60 240

q

0.15 0.50

0.20 0.75

q

0.30 1.10

0.40 1.30

q

70 330

85 400

q

110 600

q

±110 ±500

±120 ±550

q

±150 ±800

q ±13.5 ±14.1

±13.5 ±14.1

q 117 132

112 132

q 113 125

111 125

q 700 3300

q 400 1100

600 3300

300 900

q ±13.0 ±13.85

±13.0 ±13.85

q 0.13 0.24

0.13 0.24

q

370 450

370 510

q

50 180

q

60 230

60 225

70 270

q

0.2 0.7

q

0.4 1.6

0.3 1.0

0.5 1.9

q

140 660

q

155 770

190 1300

q 113 133

109 133

q 110 127

107 127

UNITS

µV

µV

µV

µV/°C

µV/°C

pA

pA

pA

pA

V

dB

dB

V/mV

V/mV

V

V/µs

µA

µV

µV

µV/°C

µV/°C

pA

pA

dB

dB

The q denotes specifications which apply over the operating temperature

range.

Note 1: Differential input voltages greater than 1V will cause excessive

current to flow through the input protection diodes unless limiting

resistance is used.

Note 2: Typical parameters are defined as the 60% yield of parameter

distributions of individual amplifiers; i.e., out of 100 LT1114s (or 100

LT1112s) typically 240 op amps (or 120) will be better than the indicated

specification.

Note 3: This parameter is guaranteed by design and is not tested.

Note 4: Offset voltage, supply current and power supply rejection ratio are

measured at the minimum supply voltage.

Note 5: Matching parameters are the difference between amplifiers A and

D and between B and C on the LT1114; between the two amplifiers on the

LT1112.

Note 6: This parameter is the difference between two noninverting

input bias currents.

Note 7: ∆CMRR and ∆PSRR are defined as follows: (1) CMRR and

PSRR are measured in µV/V on the individual amplifiers. (2) The

difference is calculated between the matching sides in µV/V. (3) The

result is converted to dB.

Note 8: This parameter is not 100% tested.

Note 9: These parameters are not tested. More than 99% of the op

amps tested during product characterization have passed the

maximum limits. 100% passed at 1kHz.

Note 10: The LT1112/LT1114 are not tested and are not quality

assurance sampled at – 40°C and at 85°C. These specifications are

guaranteed by design, correlation and/or inference from – 55°C, 0°C,

25°C, 70°C and/or 125°C tests.

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