ADS1262 32-Bit 38kSPS 10-Ch Delta-Sigma ADC With PGA and Voltage Reference for Factory Automation | TI.com

ADS1262 (ACTIVE)

32-Bit 38kSPS 10-Ch Delta-Sigma ADC With PGA and Voltage Reference for Factory Automation

32-Bit 38kSPS 10-Ch Delta-Sigma ADC With PGA and Voltage Reference for Factory Automation - ADS1262
 

 Innovation Award Selezone 2016

The ADS1262 was awarded the 2016 Selezione di Elettronica Innovation Award.

Description

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.

Features

  • 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

View more

Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
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)
INL (Max) (+/-LSB)
Rating
Sample Rate (Max) (MSPS)
ADS1262 ADS1220 ADS1248 ADS124S08 ADS1261 ADS1263
32     24     24     24     24     32    
38     2     2     4     40     38    
10     4     8     12     10     10    
SPI     SPI     SPI     SPI     SPI     SPI    
-40 to 125     -40 to 125     -40 to 105     -50 to 125     -40 to 125     -40 to 125    
TSSOP | 28     TSSOP | 16
VQFN | 16    
TSSOP | 28     TQFP | 32
VQFN | 32    
VQFN | 32     TSSOP | 28    
8.90 | 1ku     3.95 | 1ku     4.95 | 1ku     5.25 | 1ku     6.80 | 1ku     9.90 | 1ku    
27     1.4     2.3     1.75     24     27    
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 16)    
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)     32TQFP: 49 mm2: 7 x 7 (TQFP | 32)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Multiplexed     Multiplexed     Multiplexed     Multiplexed     Multiplexed     Multiplexed    
Ext
Int    
Ext
Int
Supply    
Ext
Int    
Ext
Int    
Ext
Int    
Ext
Int    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
Oscillator
PGA
Temp Sensor    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
GPIO
Oscillator
PGA
Temp Sensor    
2.5
5    
2.85
5.6    
2.125
4.25    
2.625
5.25    
2.5
5    
2.5
5    
-2.5
0    
-2.85
0    
-2.125
0    
-2.625
0    
-2.5
0    
-2.5
0    
4.75     2.3     2.7     2.7     -2.5
4.75    
4.75    
5.25     5.5     5.25     5.25     2.5
5.25    
5.25    
2.7     2.3     2.7     2.7     2.7     2.7    
5.25     5.5     5.25     3.6     5.25     5.25    
  251.7