收藏本站
参数资料
型号： LOG112AIDRE4
厂商： TEXAS INSTRUMENTS INC
元件分类： 模拟运算功能
英文描述： LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO14
封装： GREEN, PLASTIC, MS-012AB, SOIC-14
文件页数： 14/20页
文件大小： 621K
代理商： LOG112AIDRE4
LOG112, 2112
3
SBOS246D
www.ti.com
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, TA = –5°C to +75°C.
At TA = +25°C, VS = ±5V, and ROUT = 10k, unless otherwise noted.
LOG112, LOG2112
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
CORE LOG FUNCTION
VIN /VOUT Equation
VLOGOUT = (0.5V)LOG (I1/I2)V
LOG CONFORMITY ERROR(1)
Initial
1nA to 100
A (5 decades)
0.01
0.2
%
100pA to 3.5mA (7.5 decades)
0.13
%
over Temperature
1nA to 100
A (5 decades)
0.0001
%/
°C
100pA to 3.5mA (7.5 decades)
0.005
%/
°C
GAIN(2)
Initial Value
1nA to 100
A
0.5
V/decade
Gain Error
1nA to 100
A
0.10
±1%
vs Temperature
TMIN to TMAX
0.003
0.01
%/
°C
INPUT, A1A and A1B, A2A, A2B
Offset Voltage
±0.3
±1.5
mV
vs Temperature
TMIN to TMAX
±2
V/
°C
vs Power Supply (PSRR)
VS = ±4.5V to ±18V
5
20
V/V
Input Bias Current
±5pA
vs Temperature
TMIN to TMAX
Doubles Every 10
°C
Voltage Noise
f = 10Hz to 10kHz
3
Vrms
f = 1kHz
30
nV/
√Hz
Current Noise
f = 1kHz
4
fA/
√Hz
Common-Mode Voltage Range (Positive)
(V+) – 2
(V+) – 1.5
V
(Negative)
(V–) + 2
(V–) + 1.2
V
Common-Mode Rejection Ratio (CMRR)
10
V/V
OUTPUT, (VLOG OUT) A2A, A2B
Output Offset, VOSO, Initial
±3
±15
mV
vs Temperature
TMIN to TMAX
±10
V/°C
Full-Scale Output (FSO)
VS = ±5V
(V–) + 1.2
(V+) – 1.5
V
Short-Circuit Current
±18
mA
TOTAL ERROR(3)(4)
I1 or I2 remains fixed while other varies.
Initial
Min to Max
I1 or I2 = 5mA (VS ≥ ±6V)
±150
mV
I1 or I2 = 3.5mA
±75
mV
I1 or I2 = 1mA
±20
mV
I1 or I2 = 100A
±20
mV
I1 or I2 = 10A
±20
mV
I1 or I2 = 1A
±20
mV
I1 or I2 = 100nA
±20
mV
I1 or I2 = 10nA
±20
mV
I1 or I2 = 1nA
±20
mV
I1 or I2 = 350pA
±20
mV
I1 or I2 = 100pA
±20
mV
vs Temperature
I1 or I2 = 3.5mA
±1.2
mV/
°C
I1 or I2 = 1mA
±0.4
mV/
°C
I1 or I2 = 100A
±0.1
mV/
°C
I1 or I2 = 10A
±0.05
mV/
°C
I1 or I2 = 1A
±0.05
mV/
°C
I1 or I2 = 100nA
±0.09
mV/
°C
I1 or I2 = 10nA
±0.2
mV/
°C
I1 or I2 = 1nA
±0.3
mV/
°C
I1 or I2 = 350pA
±0.1
mV/
°C
I1 or I2 = 100pA
±0.3
mV/
°C
vs Supply
I1 or I2 = 3.5mA
±3.0
mV/ V
I1 or I2 = 1mA
±0.1
mV/ V
I1 or I2 = 100A
±0.1
mV/ V
I1 or I2 = 10A
±0.1
mV/ V
I1 or I2 = 1A
±0.1
mV/ V
I1 or I2 = 100nA
±0.1
mV/ V
I1 or I2 = 10nA
±0.1
mV/ V
I1 or I2 = 1nA
±0.25
mV/V
I1 or I2 = 350pA
±0.1
mV/ V
I1 or I2 = 100pA
±0.1
mV/ V
NOTES: (1) Log Conformity Error is the peak deviation from the best-fit-straight line of VO versus LOG (I1/I2) curve expressed as a percent of peak-to-peak full-
scale output. K, scale factor, equals 0.5V output per decade of input current. (2) Scale factor of core log function is trimmed to 0.5V output per decade change of
input current. (3) Worst-case Total Error for any ratio of I1/I2, as the largest of the two errors, when I1 and I2 are considered separately. (4) Total Error includes offset
voltage, bias current, gain, and log conformity. (5) Bandwidth (3dB) and transient response are a function of both the compensation capacitor and the level of input
current.
相关PDF资料
PDF描述
LOS4301-2 1-OUTPUT 15 W AC-DC REG PWR SUPPLY MODULE
LOK4240-2RLD 1-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE
LOK4801-2R 1-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE
LOK4001-2RLD 1-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE
LOK4301-2R 1-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE
相关代理商/技术参数
参数描述
LOG114 制造商:BB 制造商全称:BB 功能描述:Precision, High-Speed Transimpedance Amplifier
LOG114_12 制造商:BB 制造商全称:BB 功能描述:Single-Supply, High-Speed, Precision LOGARITHMIC AMPLIFIER
LOG114AIRGVR 功能描述:对数放大器 Precision High-Speed RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel
LOG114AIRGVRG4 功能描述:对数放大器 Prec High-Speed Logarithmic Amp RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel
LOG114AIRGVT 功能描述:对数放大器 Precision High-Speed RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*