ADS1209 16-Bit, 10MHz, 2-Ch, Delta-Sigma Modulator | TI.com

ADS1209 (ACTIVE)

16-Bit, 10MHz, 2-Ch, Delta-Sigma Modulator

16-Bit, 10MHz, 2-Ch, Delta-Sigma Modulator - ADS1209
Datasheet
 

Description

The ADS1209 is a two-channel, high-performance, delta-sigma () modulator with an 86dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to signal sources in an industrial environment. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. Effective accuracy of 14 bits can be obtained with a digital filter bandwidth of 20kHz at a modulator rate of 10MHz. The ADS1209 is designed for use in high-resolution measurement applications including current measurements, industrial process control, and resolvers. It is available in a TSSOP-24 package and is specified for operation over the ambient temperature range of –40°C to +105°C.

Features

  • 16-Bit Resolution
  • 13-Bit Linearity
  • ±2.3V Specified Input Voltage Range
  • Internal Reference Voltage: 2%
  • Gain Error: 0.5%
  • Two Independent Delta-Sigma Modulators
  • Two Input Reference Buffers
  • On-Chip Oscillator
  • Selectable Internal or External Clock
  • Specified Temperature Range: –40°C to +105°C
  • TSSOP-24 Package
  • APPLICATIONS
    • Motor Control
    • Current Measurement
    • Resolver
    • Industrial Process Control
    • Instrumentation

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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)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
ADS1209 ADS1205 ADS1208
16     16     16    
40     40     40    
2     2     1    
Serial     Serial     Serial    
-40 to 105     -40 to 85     -40 to 85    
TSSOP | 24     VQFN | 24     TSSOP | 16    
4.95 | 1ku     5.45 | 1ku     4.18 | 1ku    
65.5     59     64    
24TSSOP: 34 mm2: 4.4 x 7.8 (TSSOP | 24)     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
Delta-Sigma     Delta-Sigma     Delta-Sigma    
Differential
Single-Ended    
Differential
Single-Ended    
Differential    
Simultaneous Sampling     Simultaneous Sampling    
   
Ext
Int    
Ext
Int    
Ext
Int    
Oscillator     Oscillator     Excitation Current Sources (iDACs)
Oscillator    
5     5     5    
0     0     0    
4.5     4.5     4.5    
5.5     5.5     5.5    
2.7     2.7     2.7    
5.5     5.5     5.5    
8     3     8    
84     88.2     81.5    
90     88.9     82    
-85     -96.6     -91    
Catalog     Catalog     Catalog