参数资料
| 型号： | LT1620IS8 |
| 厂商： | Linear Technology |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | IC AMP R-R CURRENT SENSE 8-SOIC |
| 标准包装： | 100 |
| 放大器类型： | 电流检测 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 电流 - 输入偏压： | 20nA |
| 电压 - 输入偏移： | 6000µV |
| 电流 - 电源： | 2.3mA |
| 电压 - 电源，单路/双路(±)： | 4.5 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 |
3
LT1620/LT1621
ELECTRICAL C
C
HARA TERISTICS
IN+ = 16.8V, VCC = 5V, VIOUT = 2V, TA = 25°C unless otherwise noted.
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2: Input bias currents are disabled when VCC is removed, even
with common mode voltage present at IN+, IN–.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Current Sense Amplifier
VOSAVG
Input Offset - Measured at
×10 Output
VCC ≤ VCM ≤ 32V
– 3
3
mV
(VAVG)
35mV
≤ VID ≤ 125mV
q
–4
4
mV
VCM = 0V, VID = 80mV
q
–10
15
mV
VOSAVG2
Input Offset - Measured at
×20 Output VCC ≤ VCM ≤ 32V
– 3
3
mV
(VAVG2)
0V
≤ VID ≤ 35mV
q
–4
4
mV
VSENSE
No-Load Output Offset
0V
≤ VCM ≤ 32V, VID = 0V, Referenced to VCC
q
– 0.1
– 3
mV
IB(IN+, IN–) Input Bias Current (Sink)
VCC ≤ VCM ≤ 32V (Note 2)
200
270
400
A
q
185
430
A
Input Bias Current (Source)
VCM = 0V (Note 2)
4.0
5.25
mA
q
5.50
mA
Transconductance Amplifier
gm
Amplifier Transconductance
3000
3500
4000
mho
q
2200
4800
mho
AV
Amplifier Voltage Gain
1V
≤ VIOUT ≤ 3V
60
80
dB
VOLIOUT
IOUT Saturation Limit (Sink)
IIOUT = 50A
q
0.05
0.15
V
IIOUT = 200A
q
0.10
0.30
V
IIOUT = 1mA
q
0.35
0.65
V
VPROG
PROG Input Range
q
VCC – 1.25
VCC
V
IBPROG
Input Bias Current
Measured at PROG Pin
20
nA
VOSPROG
Input Offset Voltage
IIOUT = 130A– 7
7
mV
(VAVG – VPROG)
q
–8
8
mV
End-of-Cycle Comparator
VPROG2
PROG2 Input Range
q
VCC – 2.5
VCC – 0.15
V
VHYST
Input Hysteresis
Measured at AVG2 Pin
15
mV
IBPROG2
Input Bias Current
Measured at PROG2 Pin
20
nA
VOLMODE Output Logic Low Output (Sink)
IMODE = 0.5mA
q
0.1
0.5
V
IMODE = 10mA
q
0.5
1.2
V
PI FU CTIO S
U
UU
ensure continuity around zero inductor current. Typical out-
put is –3mV with differential input voltage (IN+ – IN–) = 0.
AVG: Sense Amplifier AV = –10 Output and
Transconductance Amplifier Positive Input. Used as inte-
gration node for average current control. Integration time
constant is calculated using 2.5k
typical output imped-
ance.
PROG: Transconductance Amplifier Negative Input. Pro-
gram node for average current delivered to load during
current mode operation. Average current delivered to load
imposes voltage differential at current sense amplifier
VCC: 5V ±10% Power Supply Input.
IN+: Sense Amplifier Positive Input. Typically connected
to inductor side of current sense resistor. Common mode
voltage range is 0V to 32V.
IN–: Sense Amplifier Negative Input. Typically connected
to load side of current sense resistor. Common mode
voltage range is 0V to 32V.
SENSE: Sense Amplifier AV = –1 Output. Used as level-
shifted output for PWM controller current sense input. The
sense output is designed to have an inherent offset to
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| LT1620IS8#PBF | 功能描述:IC AMP R-R CURRENT SENSE 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 产品培训模块:Differential Circuit Design Techniques for Communication Applications 标准包装:1 系列:- 放大器类型:RF/IF 差分 电路数:1 输出类型:差分 转换速率:9800 V/µs 增益带宽积:- -3db带宽:2.9GHz 电流 - 输入偏压:3µA 电压 - 输入偏移:- 电流 - 电源:40mA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-VQFN 裸露焊盘，CSP 供应商设备封装:16-LFCSP-VQ 包装:剪切带 (CT) 产品目录页面:551 (CN2011-ZH PDF) 其它名称:ADL5561ACPZ-R7CT |
| LT1620IS8#TR | 功能描述:IC AMP CURRENT SENSE R-R 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LT1620IS8#TRPBF | 功能描述:IC AMP R-R CURRENT SENSE 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LT1621 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Rail-to-Rail Current Sense Amplifier |
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