特性
- Programmable gain amplifier with gains of 1 to 128
- Low noise: 7nV/√Hz @ PGA = 128
- Linearity error: 0.0002% FS
- Output word rates up to 4kSps
- Low-side switch for load cell power management
- +5V analog and +2.7V to +5V digital supplies
- ISL26102 in 24 Ld TSSOP
- ISL26104 in 28 Ld TSSOP
- ESD 7.5kV - HBM
描述
The ISL26102 and ISL26104 provide a low-noise programmable gain amplifier along with a 24-bit Delta-Sigma Analog-to-Digital Converter with two channel (ISL26102) or four channel (ISL26104) differential, multiplexed inputs. The devices feature exceptional noise performance for conversion rates ranging from 2. 5Sps to 4kSps. The on-chip low-noise programmable-gain amplifier provides gains ranging from 1 to 128, which supports ±19. 5mVFS from a 5V reference. The high input impedance allows direct connection of sensors such as load cell bridges to ensure the specified measurement accuracy without additional circuitry. The Delta-Sigma ADC features a 3rd-order modulator providing up to 21. 5 bit noise-free performance (10Sps), with user-selectable word rates. The converter can be operated from an external clock source, an external crystal (typically 4. 9152MHz), or the on-chip oscillator. The ISL26102 and ISL26104 offer a simple-to-use serial interface. The ISL26102 and ISL26104 are available in a Thin Shrink Small Outline Package (TSSOP). The devices are specified for operation over the automotive temperature range (-40°C to +105°C).
产品参数
| 属性 | 值 |
|---|---|
| Resolution (bits) | 24 |
| Channels (#) | 2 |
| Conversion Rate (Max) (kSPS) | 4 |
| INL (%FS) | 0.0002 |
| Analog Supply Voltage (V) | 4.75 - 5.25 |
| Digital Supply Voltage (V) | 2.7 - 5.25 |
| Supply Voltage (V) | 4.75 - 5.25 |
| Power Consumption (mW) | 33.75 |
| Noise (μVrms) | 0.007 |
| Qualification Level | Standard |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 7.8 x 4.4 x 0.00 | 24 | 0.7 |
应用
- Weigh scales
- Temperature monitors and controls
- Load safety systems
- Industrial process control
- Pressure sensors
| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL26102AVZ | Active | Available | In Stock | RoHS:EN | TSSOP | 1ku | $11.9 | 24# | Tube | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C | MALAYSIA | TAIWAN |
| ISL26102AVZ-T | Active | N/A | Out of Stock | RoHS:EN | TSSOP | 1ku | $11.9 | 24# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C | MALAYSIA | TAIWAN |
| ISL26102AVZ-T7A | Active | N/A | In Stock | RoHS:EN | TSSOP | 1ku | $16.31 | 24# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C | MALAYSIA | TAIWAN |
- 手册 - 开发工具英语PDF 529 KB r12uz0047eu-rtka-tcstkev1z-user-manual 2019年6月03日
- 手册 - 开发工具英语PDF 1.09 MB r12uz0049eu-rtka-bdgstkdbevkit1z-user-manual 2019年3月22日
- 手册 - 开发工具英语PDF 721 KB r12uz0045eu-rtka-bdgstkev2z-user-manual 2019年3月22日
- 产品变更通告英语PDF 121 KB PCN11113A 2012年8月13日
- 产品变更通告英语PDF 120 KB PCN11113 2011年10月31日
- 应用说明英语PDF 503 KB an9675 1999年8月13日AI 生成的摘要: Effective Number of Bits (ENOB) depends critically on precise coherence in A/D sampling, with small frequency shifts significantly impacting accuracy. Unwrapping reconstructs coherently sampled sine waves, while windowing controls spectral leakage by shaping the acquisition window. Resampling and interpolation adjust sample sets to avoid leakage in FFT analysis. Different window functions balance side lobe levels and bandwidth, affecting spectral resolution and leakage reduction.
- 应用说明英语PDF 1.08 MB an002 1998年11月19日AI 生成的摘要: Data acquisition and conversion involve quantization, where the smallest resolvable analog difference (quantum) depends on the full scale range and resolution. Quantization introduces an irreducible error called quantizing error or noise. Aperture time, the conversion time uncertainty, causes amplitude errors when signals change during conversion. Sample-hold circuits reduce aperture time by storing sampled signals. The Sampling Theorem states that sampling frequency must be at least twice the highest signal frequency to avoid distortion from frequency folding or aliasing. Natural binary code is commonly used for digital representation in converters, with the most and least significant bits defining the code's resolution and value.
- 应用说明英语PDF 287 KB an9705 1997年2月21日AI 生成的摘要: Coherent sampling requires the ratio of signal frequency to sampling frequency to be a rational number, expressed as ko/N. When this condition is not met, frequency smearing occurs across bins. Data Acquisition Systems (DAS) can mitigate this by windowing, fixing sampling frequency and tuning input frequency, or fixing input frequency and tuning sampling frequency. The latter two methods are practical for most systems. Pseudo-code illustrates the frequency response for non-integer ko values.
推荐文档 (1)
数据手册 (1)
- 手册 - 开发工具英语PDF 529 KB r12uz0047eu-rtka-tcstkev1z-user-manual 2019年6月03日
- 手册 - 开发工具英语PDF 1.09 MB r12uz0049eu-rtka-bdgstkdbevkit1z-user-manual 2019年3月22日
- 手册 - 开发工具英语PDF 721 KB r12uz0045eu-rtka-bdgstkev2z-user-manual 2019年3月22日
手册和指南 (4)
- 应用说明英语PDF 503 KB an9675 1999年8月13日AI 生成的摘要: Effective Number of Bits (ENOB) depends critically on precise coherence in A/D sampling, with small frequency shifts significantly impacting accuracy. Unwrapping reconstructs coherently sampled sine waves, while windowing controls spectral leakage by shaping the acquisition window. Resampling and interpolation adjust sample sets to avoid leakage in FFT analysis. Different window functions balance side lobe levels and bandwidth, affecting spectral resolution and leakage reduction.
- 应用说明英语PDF 1.08 MB an002 1998年11月19日AI 生成的摘要: Data acquisition and conversion involve quantization, where the smallest resolvable analog difference (quantum) depends on the full scale range and resolution. Quantization introduces an irreducible error called quantizing error or noise. Aperture time, the conversion time uncertainty, causes amplitude errors when signals change during conversion. Sample-hold circuits reduce aperture time by storing sampled signals. The Sampling Theorem states that sampling frequency must be at least twice the highest signal frequency to avoid distortion from frequency folding or aliasing. Natural binary code is commonly used for digital representation in converters, with the most and least significant bits defining the code's resolution and value.
- 应用说明英语PDF 287 KB an9705 1997年2月21日AI 生成的摘要: Coherent sampling requires the ratio of signal frequency to sampling frequency to be a rational number, expressed as ko/N. When this condition is not met, frequency smearing occurs across bins. Data Acquisition Systems (DAS) can mitigate this by windowing, fixing sampling frequency and tuning input frequency, or fixing input frequency and tuning sampling frequency. The latter two methods are practical for most systems. Pseudo-code illustrates the frequency response for non-integer ko values.
应用说明和白皮书 (3)
- 产品变更通告英语PDF 121 KB PCN11113A 2012年8月13日
- 产品变更通告英语PDF 120 KB PCN11113 2011年10月31日
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