BU7481SG
High Speed Ground Sense Operational Amplifier
BU7481SG
High Speed Ground Sense Operational Amplifier
低電壓高速CMOS運算放大器為將相位補償電容內建型輸出全振幅(Full Swing)的運算放大器1組電路集於單一晶片中的單晶體(Monolithic)IC。可實現低電壓作動、低耗電、高速作動，輸入偏壓電流非常小為其特點。 低電壓高速CMOS運算放大器根據輸入類型，可分為以下兩類。 輸入全振幅 ： BU7291系列,BU7255系列 接地感測 ： BU7495系列,BU7481系列, BU7485系列,BU5281系列
Product Detail
規格:
Power Supply (Min.) [V] (+5V=5, ±5V=10)
1.8
Power Supply (Max.) [V] (+5V=5, ±5V=10)
5.5
Channel
1
Circuit Current (Typ.) [mA/ch]
0.42
Input Offset Voltage (Max.) [mV]
8
Input Bias Current (Typ.) [nA]
0.001
Slew Rate (Typ.) [V/µs]
3.2
Input Voltage Range [V]
VSS to VDD-1.2
Output Voltage Range [V]
VSS+0.1 to VDD-0.1
Voltage gain (Typ.) [dB]
105
Output current (Typ.) [mA]
8
CMRR (Typ.) [dB]
60
PSRR (Typ.) [dB]
80
GBW (Typ.) [MHz]
2.8
Operating Temperature (Min.) [°C]
-40
Operating Temperature (Max.) [°C]
105
Package Size [mm]
2.9x2.8 (t=1.25)
功能:
・可低電壓工作+1.8 [V] ～ +5.5 [V] (單一電源)
・直流電壓增益大
・内建靜電保護電路
人體模式 (HBM) ±4000[V] (Typ.)
・低輸入偏壓電流 1[pA] (Typ.)
・高回轉率
3.2[V/μs]
Reference Design / Application Evaluation Kit
-
- Reference Design - REF66009
- LogiCoA™ Solution BUCK Converter (12V Input, 5V Output, 25W)
LogiCoA001-EVK-001 is a reference design for a BUCK converter that uses ROHM's analog-digital fusion control technology LogiCoA™, which includes a microcontroller ML62Q2035 suitable for LogiCoA™, a 100V gate driver BD2320EFJ-LA, LDO BD950N1WG-C, BD900N1WG-C, operational amplifier BU7481SG, and shunt resistor LTR100LJZPFSR020. Design data, sample software, and an operating system for power supply control are available for this reference design, as well as a reference board. We hope that you will have a chance to experience the analog-digital fusion control LogiCoA™ and make use of it in your future power supply device development.
Reference Program
We offer a reference program comprising an OS for power control and firmware for BUCK converter control. Additionally, we provide a communication GUI that allows communication from a Windows PC. Please utilize these as design references. Reference Program and Communication GUI are available here.
- LogiCoA™ Solution Buck Converter Reference Program
- LogiCoA™ Solution Buck Converter Communication GUI (Excel file)
