1MHz、50μV、11nV/√Hz、3mA 功耗、精密仪表放大器
| Number of channels (#) | 1 |
| Vs (Max) (V) | 36 |
| Vs (Min) (V) | 4.5 |
| Input offset (+/-) (Max) (uV) | 50 |
| Gain (Min) (V/V) | 1 |
| Gain (Max) (V/V) | 10000 |
| Noise at 1 kHz (Typ) (nV/rt (Hz)) | 11 |
| Features | Overvoltage Protection |
| CMRR (Min) (dB) | 115 |
| Input offset drift (+/-) (Max) (uV/C) | 0.25 |
| Input bias current (+/-) (Max) (nA) | 2 |
| Iq (Typ) (mA) | 2.2 |
| Bandwidth at min gain (Typ) (MHz) | 1 |
| Gain error (+/-) (Max) (%) | 0.5 |
| Operating temperature range (C) | -40 to 85 |
| Type | Resistor |
| Output swing headroom (to negative supply) (Typ) (V) | 1.3 |
| Output swing headroom (to positive supply) (Typ) (V) | -1.3 |
| Input common mode headroom (to negative supply) (Typ) (V) | 1.5 |
| Input common mode headroom (to positive supply) (Typ) (V) | -1.5 |
| Noise at 0.1 Hz-10 Hz (Typ) (uVpp) | 0.4 |
| Gain non-linearity (+/-) (Max) (%) | 0.002 |
- LOW OFFSET VOLTAGE: 50μV max
- LOW DRIFT: 0.25μV/°C max
- LOW INPUT BIAS CURRENT: 2nA max
- HIGH COMMON-MODE REJECTION: 115dB min
- INPUT OVER-VOLTAGE PROTECTION: ±40V
- WIDE SUPPLY RANGE: ±2.25 to ±18V
- LOW QUIESCENT CURRENT: 3mA max
- 8-PIN PLASTIC AND CERAMIC DIP, SOL-16
The INA114 is a low cost, general purpose instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications.
A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage.
The INA114 is laser trimmed for very low offset voltage (50μV), drift (0.25μV/°C) and high common-mode rejection (115dB at G = 1000). It operates with power supplies as low as ±2.25V, allowing use in battery operated and single 5V supply systems. Quiescent current is 3mA maximum.
The INA114 is available in 8-pin plastic and ceramic DIPs, and SOL-16 surface-mount packages, specified for the -40°C to +85°C temperature range.
