参数资料
| 型号： | LT1994CDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/20页 |
| 文件大小： | 0K |
| 描述： | IC DIFF AMP/DRIVER LN 8-DFN |
| 标准包装： | 121 |
| 放大器类型： | 差分 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 65 V/µs |
| 增益带宽积： | 70MHz |
| 电流 - 输入偏压： | 18µA |
| 电压 - 输入偏移： | 3000µV |
| 电流 - 电源： | 14.8mA |
| 电流 - 输出 / 通道： | 85mA |
| 电压 - 电源，单路/双路(±)： | 2.375 V ~ 12.6 V，±1.188 V ~ 6.3 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1322 (CN2011-ZH PDF) |
LT1994
18
1994fb
3. Calculate R3, R2 and R1 using the standard 5% C2
value, the specied f3dB and the specied passband
gain (Gn)
f
MHz and Gain
or Gain
MHz
f
dB
3
18 8
1
≤≤
≤
.
R1, R2 and R3 equations (C2 in pF and f3dB in kHz)
R
Gn
C
f
3
1 121
1 131 0 127
10
12
8
3
=
()
+
()
.–
.– .
ddB
dB
Note
R
RC
f
R
Gn
()
.
1
2
1 266 10
32
1
2
15
2
3
2
=
Example: The specied –3dB frequency is 1MHz Gain = 1
1. Using f3dB = 1000kHz, C2abs = 400pF
2. Nearest standard 5% value to 400pF is 390pF and C21
= C22 = 390pF and C11 = 3900pF
3. Using f3dB = 1000kHz, C2 = 390pF and Gain = 1, R1
= 549
Ω, R2 = 549Ω and R3 = 15.4Ω (nearest 1%
values). R11 = R21 = 549
Ω, R21 = R22 = 549Ω and
R31 = R32 = 15.4
Ω.
Note 1: The equations for R1, R2, R3 are ideal and do
not account for the nite gain bandwidth product (GBW)
of the LT1994 (70MHz). The maximum gain is set by
the C1/C2 ratio (which for convenience is set equal to
ten).
Note 2: The calculated value of a capacitor is chosen
to produce input resistors less than 600
Ω. If a higher
value input resistance is required then multiply all resis-
tor values and divide all capacitor values by the same
number.
A Single-Ended to Differential Voltage Conversion with Source Impedance Matching and Level Shifting
1994 TA05
+
–
+
V+
V
t
0.1μF
3
7
6
8
1
2
5
4
RS
50Ω
374Ω
50Ω
54.9Ω
402Ω
0.1μF
VIN
LT1994
VOCM
VOUT
+
VOUT
–
VOCM – 0.25V
VOCM + 0.25V
VOUT
–
VOUT
+
VOCM
0
1
–1
V
t
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1994CMS8 | 制造商:Linear Technology 功能描述:SP Amp DIFF AMP Single R-R O/P ±6.3V/12.6V 8-Pin MSOP |
| LT1994CMS8#PBF | 功能描述:IC DIFF AMP/DRIVER LN 8-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LT1994CMS8#TR | 制造商:Linear Technology 功能描述:DIFF-AMPLIFIER, 70MHZ, 65V/US, MSOP-8, No. of Amplifiers:1, Input Offset Voltage 制造商:Linear Technology 功能描述:DIFF-AMPLIFIER, 70MHZ, 65V/US, MSOP-8, No. of Amplifiers:1, Input Offset Voltage:2mV, Bandwidth:70MHz, Amplifier Case Style:MSOP, No. of Pins:8, Supply Voltage Range:2.375V to 12.6V, Slew Rate:65V/s, Supply Current:14.8mA, MSL:- , RoHS Compliant: No |
| LT1994CMS8#TRPBF | 功能描述:IC DIFF AMP/DRIVER LN 8-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LT1994CMS8PBF | 制造商:Linear Technology 功能描述:Differential Amp RRO +/-6.3V/12.6V MSOP8 |
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