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INA296A4IDGKR中文资料德州仪器数据手册PDF规格书
INA296A4IDGKR规格书详情
1 Features
• Wide common-mode voltage:
– Operational voltage: −5 V to +110 V
– Survival voltage: −20 V to +120 V
• Bidirectional operation
• High small signal bandwidth: 1.1 MHz (at all gains)
• Slew rate: 8 V/μs
• Step response settling time to 1: 1 μs
• Excellent CMRR: 166 dB
• Accuracy:
– Gain error (maximum)
• Version A: ±0.01, ±1 ppm/°C drift
• Version B: ±0.1, ±5 ppm/°C drift
– Offset voltage (maximum)
• Version A: ±10 μV, ±0.1 μV/°C drift
• Version B: ±150 μV, ±0.5 μV/°C drift
• Available gains:
– INA296A1, INA296B1 : 10 V/V
– INA296A2, INA296B2 : 20 V/V
– INA296A3, INA296B3 : 50 V/V
– INA296A4, INA296B4 : 100 V/V
– INA296A5, INA296B5 : 200 V/V
• Package options: SOT23-8, VSSOP-8, SOIC-8,
VSSOP-10
2 Applications
• 48-V DC/DC Converter
• 48-V battery management systems (BMS)
• Test & Measurement
• Macro remote radio unit (RRU)
• 48-V rack server
• 48-V merchant network & server power supply
(PSU)
3 Description
The INA296x is an ultra-precise, bidirectional current
sense amplifier than can measure voltage drops
across shunt resistors over a wide common-mode
range from –5 V to 110 V, independent of the supply
voltage. The high-precision current measurement
is achieved through a combination of low offset
voltage (±10 μV, maximum), small gain error (±0.01,
maximum) and a high DC CMRR (typical 166 dB).
The INA296x is not only designed for high voltage,
bidirectional DC current measurements, but also for
high-speed applications (such as transient detection
and fast overcurrent protection) with a high signal
bandwidth of 1.1 MHz and fast settling time.
The INA296x operates from a single 2.7 V to 20 V
supply, drawing 2.5 mA of supply current. The
INA296x is available in five gain options: 10 V/V,
20 V/V, 50 V/V, 100 V/V, and 200 V/V. Multiple
gain options allow for optimization between available
shunt resistor values and wide output dynamic range
requirements.
The INA296x is specified over operating temperature
range of −40°C to +125°C.
