参数资料
型号: LT1493CS#PBF
厂商: Linear Technology
文件页数: 1/16页
文件大小: 0K
描述: IC OP-AMP LOW POWER QUAD 16-SOIC
标准包装: 50
放大器类型: 通用
电路数: 4
转换速率: 3 V/µs
增益带宽积: 5MHz
电流 - 输入偏压: 45nA
电压 - 输入偏移: 120µV
电流 - 电源: 500µA
电流 - 输出 / 通道: 55mA
电压 - 电源,单路/双路(±): 2.5 V ~ 36 V,±1.25 V ~ 18 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SO
包装: 管件
产品目录页面: 1318 (CN2011-ZH PDF)
1
LT1492/LT1493
5MHz, 3V/
s, Low Power
Single Supply, Dual and Quad
Precision Op Amps
DESCRIPTION
U
The LT
1492/LT1493 are dual/quad, low power, single sup-
ply precision op amps with 5MHz gain-bandwidth product,
3V/
s slew rate and only 450A of quiescent supply current
per amplifier.
With a maximum input offset voltage of only 180
V, the
LT1492/LT1493 eliminate trims in most systems while pro-
viding high frequency performance not usually found in low
power single supply amplifiers.
The LT1492/LT1493 will operate on any supply greater than
2.5V and less than 36V total, and are specified on single 3.3V,
single 5V and
±15V supplies. Even with their low quiescent
supply current the minimum output drive is 20mA, ideal for
driving low impedance loads.
The inputs can be driven beyond the supplies without
damage or phase reversal of the output. The low operating
voltage and wide input and output range make the LT1492/
LT1493 amplifiers ideal for battery-powered applications.
For applications requiring faster precision single supply
amplifiers, see the 14MHz, 7V/
s LT1211/LT1212, the
28MHz, 12V/
s LT1213/LT1214 or the 23MHz, 50V/s
LT1215/LT1216.
TYPICAL APPLICATION
U
FEATURES
s
Battery-Powered Systems
Portable Instrumentation
s
Active Filters
s
Photodiode Amplifiers
s
DAC Current to Voltage Amplifiers
APPLICATIONS
U
s
Gain-Bandwidth Product: 5MHz Typ
s
Slew Rate: 3V/
s Typ
s
Low Supply Current per Amplifier: 0.55mA Max
s
Input Offset Voltage: 180
V Max
s
Input Offset Voltage Drift: 3
V/°C Max
s
Input Offset Current: 20nA Max
s
Input Bias Current: 100nA Max
s
Open-Loop Gain: 1500V/mV Min (VS = ±15V)
s
Low Input Noise Voltage: 16.5nV/
√Hz
s
Low Input Noise Current: 0.14pA/
√Hz
s
Large Output Drive Current: 20mA Min
s
Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
s
Wide Supply Voltage Range: 2.5V to 36V
s
Specified on 3.3V, 5V and
±15V
s
Dual in 8-Pin PDIP and SO Package
s
Quad in a Narrow 16-Pin SO Package
, LTC and LT are registered trademarks of Linear Technology Corporation.
Precision AC to DC Converter (Full Wave Rectifier and Filter)
+
VIN
VS = 5V, 0V
< 1% ERROR FROM 100mV TO 1V, f = 1kHz
10% ERROR AT 10mV, f = 1kHz
1% ERROR AT 5kHz, VIN = 100mVRMS
10% ERROR AT 30kHz, VIN = 100mVRMS
1/2 LT1492
+
1/2 LT1492
5V
10k
4.99k
15k
6.49k
10
F
VOUT DC
1492/93 TA01
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (
V/°C)
– 2.5
PERCENT
OF
UNITS
(%)
30
40
50
1.5
1492/93 G02
20
10
0
–1.5
– 0.5
0.5
–2
2
–1
0
1
2.5
VS = 5V, 0V
LT1492 N8, S8 PACKAGES
LT1493 S16 PACKAGE
Distribution of Offset Voltage
Drift with Temperature
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