INA351A

現行

具有整合式參考放大器的低功耗 (110 µA) 儀表放大器以提供校準

立即訂購

產品規格表

document-pdfAcrobat INA351A - Low Power, 1.8-V to 5.5-V Small-Size Instrumentation Amplifier with Configurable Reference Amplifier datasheet (英文) PDF | HTML

INA351A

現行

產品規格表

立即訂購

產品詳細資料

Number of channels

1

Vs (max) (V)

5.5

Vs (min) (V)

1.8

Input offset (±) (max) (µV)

1300

Voltage gain (min) (V/V)

10

Voltage gain (max) (V/V)

50

Noise at 1 kHz (typ) (nV√Hz)

36

Features

Cost Optimized, Low power, Small Size

CMRR (min) (dB)

86

Iq (typ) (mA)

0.11

Bandwidth at min gain (typ) (MHz)

0.1

Gain error (±) (max) (%)

0.1

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Output swing headroom (to negative supply) (typ) (V)

0.015

Output swing headroom (to positive supply) (typ) (V)

0.015

Input common mode headroom (to negative supply) (typ) (V)

0

Input common mode headroom (to positive supply) (typ) (V)

0

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

3.2

Number of channels

1

Vs (max) (V)

5.5

Vs (min) (V)

1.8

Input offset (±) (max) (µV)

1300

Voltage gain (min) (V/V)

10

Voltage gain (max) (V/V)

50

Noise at 1 kHz (typ) (nV√Hz)

36

Features

Cost Optimized, Low power, Small Size

CMRR (min) (dB)

86

Iq (typ) (mA)

0.11

Bandwidth at min gain (typ) (MHz)

0.1

Gain error (±) (max) (%)

0.1

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Output swing headroom (to negative supply) (typ) (V)

0.015

Output swing headroom (to positive supply) (typ) (V)

0.015

Input common mode headroom (to negative supply) (typ) (V)

0

Input common mode headroom (to positive supply) (typ) (V)

0

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

3.2

WSON (DSG)

8

4 mm² (2 mm × 2 mm)

Fixed gain of 10V/V instrumentation amp with configurable reference amp
INA performance for 10-bit to 14-bit systems
- CMRR: 95 dB (typical)
- Gain error: 0.015% (typical)
- Bandwidth: 100 kHz (typical)
Reference amp can be used for:
- External DC error calibration with servo loop
- Providing buffered voltage of external circuits
- Filtering or adjustment of reference voltage
Ultra-small package option (2mm x 2mm)
Drives 1 nF with under 10% overshoot (typical)
Optimized quiescent current: 110 µA (typical)
Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)
Specified temperature range: –40°C to 125°C

Fixed gain of 10V/V instrumentation amp with configurable reference amp
INA performance for 10-bit to 14-bit systems
- CMRR: 95 dB (typical)
- Gain error: 0.015% (typical)
- Bandwidth: 100 kHz (typical)
Reference amp can be used for:
- External DC error calibration with servo loop
- Providing buffered voltage of external circuits
- Filtering or adjustment of reference voltage
Ultra-small package option (2mm x 2mm)
Drives 1 nF with under 10% overshoot (typical)
Optimized quiescent current: 110 µA (typical)
Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)
Specified temperature range: –40°C to 125°C

INA351A is a fixed gain of 10 instrumentation amplifier with a configurable reference amplifier in a small package. This instrumentation amp (INA) is built with precision-matched resistors to achieve excellent CMRR and gain error performance in a small, low-cost form factor. This makes INA351A a great solution to replace discrete INA implementations to achieve higher performance and more compact designs with minimal impact to bill of materials (BOM) costs.

The integrated, configurable reference amplifier can be used as a buffer for external use or as part of a closed-loop calibration circuit to achieve better DC precision. The closed-loop calibration can be accomplished by implementing a servo loop amplifier to calibrate DC errors from sensors (like offset, offset drift and so forth) at the INA output when the INA input signal is at a slightly higher frequency than DC depending on the application.

INA351A achieves 86 dB of minimum CMRR, an accurate 0.1% of maximum gain error and only consumes a maximum of 135 µA quiescent current at room temperature. The INA can directly drive sub-1 kHz, 10-bit to 14-bit, delta-sigma analog-to-digital converters (ADC) without an ADC driver, making it a great choice for portable, battery-powered medical applications like electrocardiograms or wearable health monitors.

INA351A is a fixed gain of 10 instrumentation amplifier with a configurable reference amplifier in a small package. This instrumentation amp (INA) is built with precision-matched resistors to achieve excellent CMRR and gain error performance in a small, low-cost form factor. This makes INA351A a great solution to replace discrete INA implementations to achieve higher performance and more compact designs with minimal impact to bill of materials (BOM) costs.

The integrated, configurable reference amplifier can be used as a buffer for external use or as part of a closed-loop calibration circuit to achieve better DC precision. The closed-loop calibration can be accomplished by implementing a servo loop amplifier to calibrate DC errors from sensors (like offset, offset drift and so forth) at the INA output when the INA input signal is at a slightly higher frequency than DC depending on the application.

INA351A achieves 86 dB of minimum CMRR, an accurate 0.1% of maximum gain error and only consumes a maximum of 135 µA quiescent current at room temperature. The INA can directly drive sub-1 kHz, 10-bit to 14-bit, delta-sigma analog-to-digital converters (ADC) without an ADC driver, making it a great choice for portable, battery-powered medical applications like electrocardiograms or wearable health monitors.

filter

尋找其它儀器放大器

下載觀看有字幕稿的影片影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。

檢視所有 1

重要文件	類型	標題	格式選項	下載最新的英文版本		日期
*	資料表	INA351A - Low Power, 1.8-V to 5.5-V Small-Size Instrumentation Amplifier with Configurable Reference Amplifier datasheet	PDF \| HTML			2023/6/12

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

SMALL-AMP-DIP-EVM — 適用於採用小尺寸封裝之運算放大器的評估模組

SMALL-AMP-DIP-EVM 提供快速簡易方式，與許多業界標準小型封裝進行介接，因而加速小型封裝運算放大器原型設計。SMALL-AMP-DIP-EVM 支援八個小型封裝選項，包括 DPW-5 (X2SON)、DSG-8 (WSON)、DCN-8 (SOT)、DDF-8 (SOT)、RUG-10 (X2QFN)、RUC-14 (X2QFN)、RGY-14 (VQFN) 和 RTE-16 (WQFN)。

使用指南: PDF

支援產品和硬體

有庫存

限制：

登入以進行訂購

lock

登入以檢視庫存

??asset.out-of-stock-ti_zh_TW??

無法提供

模擬型號