特長
- Ultra-high precision front-end amplifier
- Zero-drift instrumentation amplifier
- Pin selectable 9 gain settings: G = 1 to 1,000
- Rail-to-rail input/output
- Single-ended output
- RFI filtered inputs improve EMI rejection
- Single supply: 2.5V to 5.5V
- Dual supply: ±1.25V to ±2.75V
- Low input offset: 5μV, Maximum
- Low input offset drift: 50nV/°C, Maximum
- High CMRR: 138dB, G = 100
- Low gain error: <0.4%, All Gains, Maximum
- Gain bandwidth: 2.3MHz
- Input voltage noise (0.1Hz to 10Hz): 0.4μVP-P
- Operating temperature range: -40 °C to +125 °C
説明
The ISL28533 5V zero-drift rail-to-rail input/output (RRIO) Programmable Gain Instrumentation Amplifiers (PGIA). This instrumentation amplifier features low offset, low noise, low gain error, and high CMRR. It is ideal for high precision applications over the wide industrial temperature range. This in-amp is designed with a unique 2-bit, 3-state logic interface that allows up to 9 selectable gain settings. The ISL2853x single-ended output amplifier includes an additional uncommitted zero-drift amplifier, useful to buffer the REF input or used as a precision amplifier.
パラメータ
| 属性 | 値 |
|---|---|
| Channels (#) | 1 |
| Bandwidth (MHz) | 2.3 |
| Gain Min | 1 |
| Offset Voltage (Max) (mV) | 0.005 |
| IBIAS (nA) | 0.05 |
| IOUT (A) | 0.004 |
| CMRR (dB) | 138 |
| PSRR (db) | 140 |
| Rail-to-Rail Input | Yes |
| Rail-to-Rail Output | Yes |
| IS per Amp (mA) | 2.9 |
| Noise VN (nV/√Hz) | 17 |
| Single Supply Voltage Range (V) | 2.5 - 5.5 |
| Slew Rate (V/µs) | 0.8 |
| VS (Min) (V) | 2.5 |
| VS (Max) (V) | 5.5 |
| AVOL (dB) | 140 |
| Topology [Rail 1] | VFA |
| Enable | No |
| Gain Error / Measurement Error (Max) | 0.05 |
| Qualification Level | Standard |
パッケージオプション
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 0.00 | 14 | 0.7 |
アプリケーション・ブロック図
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インスリンポンプによる閉ループ操作のための持続血糖値モニタ(CGM)
取り外し可能なセンサ、充電式バッテリ、精密技術を備えた連続血糖値モニタで、最適な血糖管理を実現します。
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その他アプリケーション
- Pressure and strain gauge transducers
- Weight scales
- Flow sensors
- Biometric: ECG/blood glucose
- Temperature sensors
- Test and measurement
- Data acquisition systems
- Low ohmic current sense