APPLICATIONS IN
參數(shù)資料
型號: LT2078AIS8#PBF
廠商: Linear Technology
文件頁數(shù): 3/16頁
文件大?。?/td> 0K
描述: IC OPAMP MICROPOWER DUAL 8-SOIC
標準包裝: 100
放大器類型: 通用
電路數(shù): 2
轉換速率: 0.1 V/µs
增益帶寬積: 200kHz
電流 - 輸入偏壓: 6nA
電壓 - 輸入偏移: 50µV
電流 - 電源: 46µA
電壓 - 電源,單路/雙路(±): 2.2 V ~ 36 V,±1.1 V ~ 18 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 8-SO
包裝: 管件
產(chǎn)品目錄頁面: 1320 (CN2011-ZH PDF)
11
LT 2078/LT 2079
20789fa
APPLICATIONS INFORMATION
WU
U
1. When the input is more than a diode drop below ground,
unlimited current will flow from the substrate (V
terminal) to the input. This can destroy the unit. On the
LT2078/LT2079, resistors in series with the input protect
the devices even when the input is 5V below ground.
2. When the input is more than 400mV below ground (at
25
°C), the input stage saturates and phase reversal
occurs at the output. This can cause lockup in servo
systems. Due to a unique phase reversal protection cir-
cuitry, the LT2078/LT2079 output does not reverse, as
illustrated in Figure 2, even when the inputs are at –1V.
Distortion
There are two main contributors of distortion in op amps:
distortion caused by nonlinear common mode rejection
and output crossover distortion as the output transitions
from sourcing to sinking current. The common mode
rejection of the LT2078/LT2079 is very good, typically
108dB. Therefore, as long as the input operates in the
normal common mode range, there will be very little
common mode induced distortion. If the op amp is oper-
ating inverting there is no common mode induced distor-
tion. Crossover distortion will increase as the output load
resistance decreases. For the lowest distortion the LT2078/
LT2079 should be operated with the output always sourc-
ing current, this is usually accomplished by putting a
resistor from the output to V . In an inverting configura-
tion with no load, the output will source and sink current
through the feedback resistor. High value feedback resis-
tors will reduce crossover distortion and maintain
micropower operation.
Matching Specifications
In many applications the performance of a system de-
pends on the matching between two op amps, rather than
Figure 2. Voltage Follower with Input Exceeding the Negative Common Mode Range (VS = 5V, 0V)
2V
0V
6VP-P INPUT
1ms/DIV
–1V TO 5V
LT2078/79 F01a
1ms/DIV
LT2078/LT2079 NO PHASE REVERSAL
LT2078/79 F01C
2V
0V
4V
1ms/DIV
OP-90 EXHIBITS OUTPUT PHASE REVERSAL
LT2078/79 F01b
2V
0V
4V
Table 1
LT2078AC/LT2079AC/LT2078AI/LT2079AI
LT2078C/LT2079C/LT2078I/LT2079I
PARAMETER
50% YIELD
98% YIELD
50% YIELD
98% YIELD
UNITS
VOS Match, VOS
LT2078
30
110
50
190
V
LT2079
40
150
50
250
V
Temperature Coefficient
VOS
0.5
1.2
0.6
1.8
V/°C
Average Noninverting IB
68
6
10
nA
Match of Noninverting IB
0.12
0.4
0.15
0.5
nA
CMRR Match
120
100
117
97
dB
PSRR Match
117
105
117
102
dB
相關PDF資料
PDF描述
170M6267 FUSE 1400A 690V 3KN/110 AR UC
TSM-107-01-L-DV-M-TR CONN HEADER 14POS .100" DBL SMD
77313-101-52LF BERGSTIK
LT2078AIS8 IC OPAMP MICROPOWER DUAL 8-SOIC
LT1369CS#TRPBF IC OP-AMP R-R IN/OUT QUAD 14SOIC
相關代理商/技術參數(shù)
參數(shù)描述
LT2078CS8 制造商:Linear Technology 功能描述:OP Amp Dual GP ±22V/44V 8-Pin SOIC N
LT2078CS8#PBF 功能描述:IC OPAMP MICROPOWER DUAL 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源,單路/雙路(±):3 V ~ 32 V,±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR
LT2078CS8#PBF 制造商:Linear Technology 功能描述:Operational Amplifier (Op-Amp) IC 制造商:Linear Technology 功能描述:IC, OP-AMP, 200KHZ, 0.07V/ us, SOIC-8
LT2078CS8#TR 功能描述:IC OPAMP PREC DUAL MCRPWR 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT
LT2078CS8#TRPBF 功能描述:IC OPAMP MICROPOWER DUAL 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT