参数资料
型号: LT1222CS8#PBF
厂商: Linear Technology
文件页数: 9/12页
文件大小: 0K
描述: IC OP-AMP 500MHZ 200V/US 8-SOIC
标准包装: 100
系列: C-Load™
放大器类型: 通用
电路数: 1
转换速率: 200 V/µs
增益带宽积: 500MHz
电流 - 输入偏压: 100nA
电压 - 输入偏移: 100µV
电流 - 电源: 8mA
电流 - 输出 / 通道: 26mA
电压 - 电源,单路/双路(±): ±5 V ~ 15 V
工作温度: 0°C ~ 70°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
产品目录页面: 1318 (CN2011-ZH PDF)
6
LT1222
1222fc
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Large Signal, AV = 10
Small Signal, AV = 10
RF = 909Ω
RG = 100
Ω
LT1222 TPC19
LT1222 TPC20
Large Signal, AV = 10,
CL = 10,000pF
LT1222 TPC21
Small Signal, AV = – 10
LT1222 TPC22
LT1222 TPC23
LT1222 TPC24
Large Signal, AV = – 10
Small Signal, AV = – 10,
CL = 1,000pF
RF = 909
Ω
RG = 100Ω
RF = 1k
RG = 100Ω (75)
RF = 1k
RG = 100
Ω (75)
VS = ±15V
VIN = 20mV
f = 5MHz
VS = ±15V
VIN = 20mV
f = 5MHz
VS = ±15V
VIN = 2V
f = 2MHz
VS = ±15V
VIN = 2V
f = 2MHz
APPLICATIONS INFORMATION
WU
U
The LT1222 is stable in noise gains of 10 or greater and
may be inserted directly into HA2520/2/5, HA2541/2/4,
AD817, AD847, EL2020, EL2044 and LM6361 applica-
tions, provided that the nulling circuitry is removed and
the amplifier configuration has a high enough noise gain.
The suggested nulling circuit for the LT1222 is shown in
the following figure.
Layout and Passive Components
The LT1222 amplifier is easy to apply and tolerant of less
than ideal layouts. For maximum performance (for ex-
ample, fast settling time) use a ground plane, short lead
lengths and RF-quality bypass capacitors (0.01
μFto0.1μF).
For high drive current applications use low ESR bypass
capacitors (1
μF to 10μF tantalum). Sockets should be
avoided when maximum frequency performance is re-
quired. For more details see Design Note 50. Feedback
resistors greater than 5k are not recommended because a
pole is formed with the input capacitance which can cause
peaking or oscillations. Stray capacitance on Pin 5 should
be minimized. Bias current cancellation circuitry is em-
ployed on the inputs of the LT1222 so the input bias current
and input offset current have identical specifications. For
this reason, matching the impedance on the inputs to
reduce bias current errors is not necessary.
Offset Nulling
LT1222 AI01
V+
V
0.1
μF
0.1
μF
5k
3
2
4
7
6
8
1
LT1222
+
RF = 909Ω
RG = 100
Ω
VS =
±15V
VIN = 2V
f = 20kHz
RF = 1k
RG = 100Ω (75)
VS = ±15V
VIN = 15mV
f = 500kHz
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