Datasheet LT1678, LT1679 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps |
| 页数 / 页 | 16 / 7 — ELECTRICAL CHARACTERISTICS. Note 1:. Note 8:. Note 9:. Note 2:. Note 10:. … |
| 文件格式/大小 | PDF / 300 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. Note 1:. Note 8:. Note 9:. Note 2:. Note 10:. Note 11:. Note 12:. Note 3:. Note 13:. Note 4:. Note 14:. Note 5:
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LT1678/LT1679
ELECTRICAL CHARACTERISTICS Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 8:
Noise is 100% tested at ±15V supplies. of the device may be impaired.
Note 9:
Slew rate is measured in AV = – 1; input signal is ±10V, output
Note 2:
The inputs are protected by back-to-back diodes. Current limiting measured at ±5V. resistors are not used in order to achieve low noise. If differential input
Note 10:
This parameter is not 100% tested. voltage exceeds ±1.4V, the input current should be limited to 25mA. If the
Note 11:
VS = 5V limits are guaranteed by correlation to VS = 3V and common mode range exceeds either rail, the input current should be VS = ±15V tests. limited to 10mA.
Note 12:
VS = 3V limits are guaranteed by correlation to VS = 5V and
Note 3:
A heat sink may be required to keep the junction temperature VS = ±15V tests. below absolute maximum.
Note 13:
Guaranteed by correlation to slew rate at VS = ±15V and GBW at
Note 4:
The LT1678C/LT1679C and LT1678I/LT1679I are guaranteed VS = 3V and VS = ±15V tests. functional over the Operating Temperature Range of – 40°C to 85°C.
Note 14:
∆CMRR and ∆PSRR are defined as follows:
Note 5:
The LT1678C/LT1679C are guaranteed to meet specified 1. CMRR and PSRR are measured in µV/V on the individual amplifiers. performance from 0°C to 70°C. The LT1678C/LT1679C are designed, characterized and expected to meet specified performance from – 40°C to 2. The difference is calculated between the matching sides in µV/V. 85°C but is not tested or QA sampled at these temperatures. The LT1678I/ 3. The result is converted to dB. LT1679I are guaranteed to meet specified performance from – 40°C to
Note 15:
Matching parameters are the difference between amplifiers A and 85°C. B on the LT1678 and between amplifiers A and D and B and C in the
Note 6:
Typical parameters are defined as the 60% yield of parameter LT1679. distributions of individual amplifier; i.e., out of 100 LT1678/LT1679s,
Note 16:
Input range guaranteed by the common mode rejection ratio test. typically 60 op amps will be better than the indicated specification.
Note 7:
See the test circuit and frequency response curve for 0.1Hz to10Hz tester in the Applications Information section.
W U TYPICAL PERFOR A CE CHARACTERISTICS Voltage Noise vs Frequency 0.1Hz to 10Hz Voltage Noise 0.01Hz to 1Hz Voltage Noise
100 VS = ±15V VS = 5V, 0V VS = 5V, 0V TA = 25°C Hz) √ 10 VCM = 14.5V NOISE VOLTAGE (nV/ VCM = 0V VOLTAGE NOISE (50nV/DIV) VOLTAGE NOISE (50nV/DIV) 1 0.1 1 10 100 1000 0 2 4 6 8 10 0 20 40 60 80 100 FREQUENCY (Hz) TIME (sec) TIME (sec) 16789 G01 16789 G02 16789 G03 sn16789 16789fs 7
ELECTRICAL CHARACTERISTICS Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 8:
Noise is 100% tested at ±15V supplies. of the device may be impaired.
Note 9:
Slew rate is measured in AV = – 1; input signal is ±10V, output
Note 2:
The inputs are protected by back-to-back diodes. Current limiting measured at ±5V. resistors are not used in order to achieve low noise. If differential input
Note 10:
This parameter is not 100% tested. voltage exceeds ±1.4V, the input current should be limited to 25mA. If the
Note 11:
VS = 5V limits are guaranteed by correlation to VS = 3V and common mode range exceeds either rail, the input current should be VS = ±15V tests. limited to 10mA.
Note 12:
VS = 3V limits are guaranteed by correlation to VS = 5V and
Note 3:
A heat sink may be required to keep the junction temperature VS = ±15V tests. below absolute maximum.
Note 13:
Guaranteed by correlation to slew rate at VS = ±15V and GBW at
Note 4:
The LT1678C/LT1679C and LT1678I/LT1679I are guaranteed VS = 3V and VS = ±15V tests. functional over the Operating Temperature Range of – 40°C to 85°C.
Note 14:
∆CMRR and ∆PSRR are defined as follows:
Note 5:
The LT1678C/LT1679C are guaranteed to meet specified 1. CMRR and PSRR are measured in µV/V on the individual amplifiers. performance from 0°C to 70°C. The LT1678C/LT1679C are designed, characterized and expected to meet specified performance from – 40°C to 2. The difference is calculated between the matching sides in µV/V. 85°C but is not tested or QA sampled at these temperatures. The LT1678I/ 3. The result is converted to dB. LT1679I are guaranteed to meet specified performance from – 40°C to
Note 15:
Matching parameters are the difference between amplifiers A and 85°C. B on the LT1678 and between amplifiers A and D and B and C in the
Note 6:
Typical parameters are defined as the 60% yield of parameter LT1679. distributions of individual amplifier; i.e., out of 100 LT1678/LT1679s,
Note 16:
Input range guaranteed by the common mode rejection ratio test. typically 60 op amps will be better than the indicated specification.
Note 7:
See the test circuit and frequency response curve for 0.1Hz to10Hz tester in the Applications Information section.
W U TYPICAL PERFOR A CE CHARACTERISTICS Voltage Noise vs Frequency 0.1Hz to 10Hz Voltage Noise 0.01Hz to 1Hz Voltage Noise
100 VS = ±15V VS = 5V, 0V VS = 5V, 0V TA = 25°C Hz) √ 10 VCM = 14.5V NOISE VOLTAGE (nV/ VCM = 0V VOLTAGE NOISE (50nV/DIV) VOLTAGE NOISE (50nV/DIV) 1 0.1 1 10 100 1000 0 2 4 6 8 10 0 20 40 60 80 100 FREQUENCY (Hz) TIME (sec) TIME (sec) 16789 G01 16789 G02 16789 G03 sn16789 16789fs 7