参数资料
型号: LT6600IS8-20
厂商: Linear Technology
文件页数: 9/12页
文件大小: 0K
描述: IC AMP DIFF LP FLTR 20MHZ 8-SOIC
标准包装: 100
放大器类型: 差分
电路数: 1
输出类型: 差分
电流 - 输入偏压: 50µA
电压 - 输入偏移: 10000µV
电流 - 电源: 46mA
电压 - 电源,单路/双路(±): 3 V ~ 11 V,±1.5 V ~ 5.5 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
LT6600-20
6
66002fb
PIN FUNCTIONS
INand IN+ (Pins 1, 8): Input Pins. Signals can be ap-
plied to either or both input pins through identical external
resistors, RIN. The DC gain from differential inputs to the
differential outputs is 402Ω/RIN.
VOCM (Pin 2): Is the DC Common Mode Reference Voltage-
for the 2nd Filter Stage. Its value programs the common
mode voltage of the differential output of the lter. Pin 2 is a
high impedance input, which can be driven from an external
voltage reference, or Pin 2 can be tied to Pin 7 on the PC
board. Pin 2 should be bypassed with a 0.01μF ceramic
capacitor unless it is connected to a ground plane.
V+ and V(Pins 3, 6):
Power Supply Pins. For a single
3.3V or 5V supply (Pin 6 grounded) a quality 0.1μF ceramic
bypass capacitor is required from the positive supply pin
(Pin 3) to the negative supply pin (Pin 6). The bypass
should be as close as possible to the IC. For dual supply
applications, bypass Pin 3 to ground and Pin 6 to ground
with a quality 0.1μF ceramic capacitor.
OUT+ and OUT(Pins 4, 5):
Output Pins. Pins 4 and 5 are
the lter differential outputs. Each pin can drive a 100Ω
and/or 50pF load.
VMID (Pin 7): The VMID pin is internally biased at mid-
supply, see block diagram. For single supply operation,
the VMID pin should be bypassed with a quality 0.01μF
ceramic capacitor to Pin 6. For dual supply operation,
Pin 7 can be bypassed or connected to a high quality DC
ground. A ground plane should be used. A poor ground
will increase noise and distortion. Pin 7 sets the output
common mode voltage of the 1st stage of the lter. It has
a 5.5kΩ impedance, and it can be overridden with an
external low impedance voltage source.
BLOCK DIAGRAM
+ –
+
VOCM
+
VOCM
402Ω
200Ω
1
2
3
4
V+
V
11k
8
7
6
5
OP AMP
PROPRIETARY
LOWPASS
FILTER STAGE
VIN
VIN
+
RIN
66002 BD
IN+
VOCM
V+
OUT+
OUT
V
VMID
IN
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