参数资料
型号: MAX4169ESD+T
厂商: Maxim Integrated Products
文件页数: 4/17页
文件大小: 0K
描述: IC OP AMP R-R I/O W/SD 14-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
放大器类型: 通用
电路数: 4
输出类型: 满摆幅
转换速率: 2 V/µs
增益带宽积: 5MHz
电流 - 输入偏压: 50nA
电压 - 输入偏移: 250µV
电流 - 电源: 1.3mA
电流 - 输出 / 通道: 125mA
电压 - 电源,单路/双路(±): 2.7 V ~ 6.5 V,±1.35 V ~ 3.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 带卷 (TR)
MAX4165–MAX4169
High-Output-Drive, Precision, Low-Power, Single-
Supply, Rail-to-Rail I/O Op Amps with Shutdown
12
______________________________________________________________________________________
Power-Up and Shutdown Modes
The MAX4166/MAX4168 have a shutdown option.
When the shutdown pin (SHDN) is pulled low, supply
current drops to 58A per amplifier (VCC = +5V), the
amplifiers are disabled, and their outputs are placed in
a high-impedance state. Pulling SHDN high or leaving it
floating enables the amplifier. In the dual MAX4168, the
two amplifiers shut down independently. Figures 12
and 13 show the MAX4166’s output voltage and sup-
ply-current responses to a shutdown pulse. The
MAX4166–MAX4169 typically settle within 5s after
power-up (Figure 14).
Power Supplies and Layout
The MAX4165–MAX4169 can operate from a single
+2.7V to +6.5V supply, or from dual ±1.35V to
±3.25V supplies. For single-supply operation, bypass
the power supply with a 0.1F ceramic capacitor in
parallel with at least 1F. For dual-supply operation,
bypass each supply to ground. Good layout improves
performance by decreasing the amount of stray capac-
itance at the op amps’ inputs and outputs. Decrease
stray capacitance by placing external components
close to the op amps’ pins, minimizing trace and lead
lengths.
1300
0
10
100k
100
200
300
400
1100
1200
MAX4165-fig08
RESISTIVE LOAD (k
)
CAPACITIVE
LOAD
(pF)
100
1k
10k
1000
900
800
700
600
500
STABLE REGION
VCC = +5.0V
RL to VCC / 2
UNSTABLE REGION
Figure 8. Capacitive-Load Stability
IN
(20mV/div)
OUT
(20mV/div)
MAX4165-fig09
TIME (1
s/div)
VCC = +3.0V, CL = 1500pF
RL = 100k, RISO = 0
Figure 9. Small-Signal Transient Response with Excessive
Capacitive Load
IN
(20mV/div)
OUT
(20mV/div)
MAX4165-fig10
TIME (1
s/div)
VCC = +3.0V, CL = 1500pF
RL = 100k, RISO = 39
Figure 10. Small-Signal Transient Response with Excessive
Capacitive Load with Isolation Resistor
RISO
CL
Figure 11. Capacitive-Load-Driving Circuit
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