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| 型号： | LT1124AIS8-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP DUAL PREC HS LN 8SOIC |
| 标准包装： | 100 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 转换速率： | 4.5 V/µs |
| 增益带宽积： | 12.5MHz |
| 电流 - 输入偏压： | 5nA |
| 电压 - 输入偏移： | 20µV |
| 电流 - 电源： | 2.3mA |
| 电压 - 电源，单路/双路(±)： | ±4 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
LT1124/LT1125
10
11245ff
For more information www.linear.com/LT1124
applicaTions inForMaTion
The LT1124 may be inserted directly into OP-270 sock-
ets. The LT1125 plugs into OP-470 sockets. Of course,
all standard dual and quad bipolar op amps can also be
replaced by these devices.
Matching Specifications
Inmanyapplicationstheperformanceofasystemdepends
on the matching between two op amps, rather than the
individual characteristics of the two devices. The three op
ampinstrumentationamplifierconfigurationshowninthis
data sheet is an example. Matching characteristics are not
100% tested on the LT1124/LT1125.
Some specifications are guaranteed by definition. For
example, 70V maximum offset voltage implies that mis-
match cannot be more than 140V. 112dB (= 2.5V/V)
CMRR means that worst-case CMRR match is 106dB
Figure 1. Test Circuit for Offset Voltage and
Offset Voltage Drift with Temperature
(5V/V). However, Table 1 can be used to estimate the
expected matching performance between the two sides of
the LT1124, and between amplifiers A and D, and between
amplifiers B and C of the LT1125.
Offset Voltage and Drift
Thermocouple effects, caused by temperature gradients
across dissimilar metals at the contacts to the input termi-
nals, can exceed the inherent drift of the amplifier unless
propercareisexercised.Aircurrentsshouldbeminimized,
package leads should be short, the two input leads should
beclosetogetherandmaintainedatthesametemperature.
The circuit shown in Figure 1 to measure offset voltage
is also used as the burn-in configuration for the LT1124/
LT1125, with the supply voltages increased to ±16V.
–
+
100*
50k*
15V
–15V
VOUT
VOUT = 1000VOS
*RESISTORS MUST HAVE LOW
THERMOELECTRIC POTENTIAL
1124/25 F01
Table 1. Expected Match
LT1124AC/AM
LT1125AC/AM
LT1124C/M
LT1125C/M
PARAMETER
50% YIELD
98% YIELD
50% YIELD
98% YIELD
UNITS
VOS Match, VOS
LT1124
20
110
30
130
V
LT1125
30
150
50
180
V
Temperature Coefficient Match
0.35
1.0
0.5
1.5
V/°C
Average Noninverting IB
6
18
7
25
nA
Match of Noninverting IB
7
22
8
30
nA
CMRR Match
126
115
123
112
dB
PSRR Match
127
118
127
114
dB
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| LT1124AMPS8#PBF | 功能描述:IC OPAMP DUAL PREC HS LN 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:带卷 (TR) |
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