- 您现在的位置：买卖IC网 > PDF目录80133 > LT6604CUFF-15#TRPBF (LINEAR TECHNOLOGY CORP) SPECIALTY ANALOG CIRCUIT, PQCC34 PDF资料下载
参数资料
| 型号： | LT6604CUFF-15#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC34 |
| 封装： | 4 X 7 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-34 |
| 文件页数： | 3/16页 |
| 文件大小： | 203K |
| 代理商： | LT6604CUFF-15#TRPBF |
LT6604-15
11
660415fb
APPLICATIONS INFORMATION
where impedance must be considered is the evaluation of
the LT6604-15 with a network analyzer.
Figure 5 is a laboratory setup that can be used to char-
acterize the LT6604-15 using single-ended instruments
with 50Ω source impedance and 50Ω input impedance.
For a unity gain conguration the LT6604-15 requires
an 536Ω source resistance yet the network analyzer
output is calibrated for a 50Ω load resistance. The 1:1
transformer, 52.3Ω and 523Ω resistors satisfy the two
constraints above. The transformer converts the single-
ended source into a differential stimulus. Similarly, the
output of the LT6604-15 will have lower distortion with
larger load resistance yet the analyzer input is typically
50Ω. The 4:1 turns (16:1 impedance) transformer and the
two 402Ω resistors of Figure 5, present the output of the
LT6604-15 with a 1600Ω differential load, or the equiva-
lent of 800Ω to ground at each output. The impedance
seen by the network analyzer input is still 50Ω, reducing
reections in the cabling between the transformer and
analyzer input.
Differential and Common Mode Voltage Ranges
The differential ampliers inside the LT6604-15 contain
circuitry to limit the maximum peak-to-peak differential
voltage through the lter. This limiting function prevents
excessive power dissipation in the internal circuitry and
provides output short-circuit protection. The limiting
function begins to take effect at output signal levels
above 2VP-P and it becomes noticeable above 3.5VP-P.
This is illustrated in Figure 6; the LT6604-15 channel was
congured with unity passband gain and the input of the
lter was driven with a 1MHz signal. Because this voltage
limiting takes place well before the output stage of the
lter reaches the supply rails, the input/output behavior
of the IC shown in Figure 6 is relatively independent of
the power supply voltage.
The two ampliers inside the LT6604-15 channel have
independent control of their output common mode voltage
(see the Block Diagram section). The following guidelines
will optimize the performance of the lter.
VMID can be allowed to oat, but it must be bypassed to an
AC ground with a 0.01μF capacitor or some instability may
be observed. VMID can be driven from a low impedance
source, provided it remains at least 1.5V above V– and at
least 1.5V below V+. An internal resistor divider sets the
voltage of VMID. While the internal 11k resistors are well
matched, their absolute value can vary by ±20%. This
should be taken into consideration when connecting an
external resistor network to alter the voltage of VMID.
VOCM can be shorted to VMID for simplicity. If a different
common mode output voltage is required, connect VOCM
to a voltage source or resistor network. For 3V and 3.3V
supplies the voltage at VOCM must be less than or equal
to the mid supply level. For example, voltage (VOCM) ≤
1.65V on a single 3.3V supply. For power supply voltages
higher than 3.3V the voltage at VOCM can be set above mid
supply. The voltage on VOCM should not be more than 1V
below the voltage on VMID. The voltage on VOCM should
not be more than 2V above the voltage on VMID. VOCM is
a high impedance input.
The LT6604-15 was designed to process a variety of input
signals including signals centered on the mid-supply volt-
age and signals that swing between ground and a positive
voltage in a single supply system (Figure 1). The range of
allowable input common mode voltage (the average of VIN+
and VIN– in Figure 1) is determined by the power supply
level and gain setting (see Distortion vs Input Common
Mode Level in the Typical Performance Characteristics).
1MHz INPUT LEVEL (VP-P)
0
20
0
–20
–40
–60
–80
–100
35
660415 F06
12
46
7
OUTPUT
LEVEL
(dBV)
3RD HARMONIC
85°C
1dB COMPRESSION
POINTS
25°C
85°C
3RD HARMONIC
25°C
2ND HARMONIC, 25°C
2ND
HARMONIC
85°C
Figure 6. Output Level vs Input Level, Differential
1MHz Input, Gain = 1
相关PDF资料 |
PDF描述 |
|---|---|
| LSM330DLTR | SPECIALTY ANALOG CIRCUIT, PBGA28 |
| LQS50A48-1V8E | 1-OUTPUT 90 W DC-DC REG PWR SUPPLY MODULE |
| LWN2320-6ERD1M1FK2G | 2-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| LTC4000EGN#PBF | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO28 |
| LM4040CIZ-5.0T&R | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PBCY3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT6604CUFF-2.5#PBF | 功能描述:IC AMP DIFF LN DUAL 34-QFN 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) |
| LT6604CUFF-2.5#TRPBF | 功能描述:IC AMP DIFF LN DUAL 34-QFN 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) |
| LT6604CUFF-2.5-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Very Low Noise, Differential Amplifi er and 2.5MHz Lowpass Filter |
| LT6604CUFF-2.5-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Very Low Noise, Differential Amplifi er and 2.5MHz Lowpass Filter |
| LT6604CUFF-5#PBF | 功能描述:IC AMP DIFF LN DUAL 34-QFN 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) |
发布紧急采购，3分钟左右您将得到回复。