ADS1263 高分解能、32 ビット、38 kSPS ADC(PGA、内部リファレンスおよび補助 ADC 付き) | TIJ.co.jp

ADS1263
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高分解能、32 ビット、38 kSPS ADC(PGA、内部リファレンスおよび補助 ADC 付き)

 

概要

The ADS1262 and ADS1263 are low-noise, low-drift, 38.4-kSPS, delta-sigma (ΔΣ) ADCs with an integrated PGA, reference, and internal fault monitors. The ADS1263 integrates an auxiliary, 24-bit, ΔΣ ADC intended for background measurements. The sensor-ready ADCs provide complete, high-accuracy, one-chip measurement solutions for the most-demanding sensor applications, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature devices (RTD).

The ADCs are comprised of a low-noise, CMOS PGA (gains 1 to 32), a ΔΣ modulator, followed by a programmable digital filter. The flexible analog front-end (AFE) incorporates two sensor-excitation current sources suitable for direct RTD measurement.

A single-cycle settling digital filter maximizes multiple-input conversion throughput, while providing 130-dB rejection of 50-Hz and 60-Hz line cycle interference.

The ADS1262 and ADS1263 are pin and functional compatible. These devices are available in a 28-pin TSSOP package and are fully specified over the –40°C to +125°C temperature range.

特長

  • Precision, 32-bit, ΔΣ ADC
  • Auxiliary 24-Bit, ΔΣ ADC (ADS1263)
  • Data Rates: 2.5 SPS to 38400 SPS
  • Differential Input, CMOS PGA
  • 11 Multifunction Analog Inputs
  • High-Accuracy Architecture
    • Offset Drift: 1 nV/°C
    • Gain Drift: 0.5 ppm/°C
    • Noise: 7 nVRMS (2.5 SPS, Gain = 32)
    • Linearity: 3 ppm
  • 2.5-V Internal Voltage Reference
    • Temperature Drift: 2 ppm/°C
  • 50-Hz and 60-Hz Rejection
  • Single-Cycle Settled Conversions
  • Dual Sensor Excitation Current Sources
  • Internal Fault Monitors
  • Internal ADC Test Signal
  • 8 General-Purpose Input/Outputs

機能一覧

他の製品と比較 高精度 ADCs (<=10MSPS) メール Excelへダウンロード
Part number オーダー・オプション Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) Rating
ADS1263 ご注文 32     38     10     SPI     -40 to 125     TSSOP | 28     9.90 | 1ku     27     28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)     Delta-Sigma     Differential
Single-Ended    
Multiplexed     Ext
Int    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
2.5
5    
-2.5
0    
4.75     5.25     2.7     5.25     Catalog    
ADS1261 ご注文 24     40     10     SPI     -40 to 125     VQFN | 32     6.80 | 1ku     20     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     Delta-Sigma     Differential
Single-Ended    
Multiplexed     Ext
Int    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
2.5
5    
-2.5
0    
-2.5
4.75    
2.5
5.25    
2.7     5.25     Catalog    
ADS1262 ご注文 32     38     10     SPI     -40 to 125     TSSOP | 28     8.90 | 1ku     27     28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)     Delta-Sigma     Differential
Single-Ended    
Multiplexed     Ext
Int    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
2.5
5    
-2.5
0    
4.75     5.25     2.7     5.25     Catalog