ADS1202 Current-Shunt Delta-Sigma Modulator, 10MHz CLK, +/-250mV Input, 16-Bit Resolution | TI.com

ADS1202 (ACTIVE)

Current-Shunt Delta-Sigma Modulator, 10MHz CLK, +/-250mV Input, 16-Bit Resolution

 

Description

The ADS1202 is a precision, 80dB dynamic range, delta-sigma () modulator operating from a single +5V supply. The differential inputs are ideal for direct connections to transducers or low-level signals. 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 resolution of 12 bits can be maintained with a digital filter bandwidth of 10kHz at a modulator rate of 10MHz. The ADS1202 is designed for use in medium resolution measurement applications including current measurements, smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation. It is available in a TSSOP-8 package.

Features

  • 16-BIT RESOLUTION
  • 13-BIT LINEARITY
  • RESOLUTION/SPEED TRADE-OFF:
       10-Bit Effective Resolution with 20 µs Signal
       Delay (12-bit with 77 µs)
  • ±250mV INPUT RANGE WITH SINGLE 5V SUPPLY
  • 2% INTERNAL REFERENCE VOLTAGE
  • 2% GAIN ERROR
  • FLEXIBLE SERIAL INTERFACE WITH FOUR DIFFERENT MODES
  • IMPLEMENTED TWINNED BINARY CODING AS SPLIT PHASE OR MANCHESTER CODING FOR ONE LINE INTERFACING
  • OPERATING TEMPERATURE RANGE:
       –40°C to +85°C
  • APPLICATIONS
    • MOTOR CONTROL
    • CURRENT MEASUREMENT
    • INDUSTRIAL PROCESS CONTROL
    • INSTRUMENTATION
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTS
    • WEIGHT SCALES
    • PRESSURE TRANSDUCERS

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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
ADS1202
16    
40    
1    
Serial    
-40 to 85    
TSSOP | 8    
2.89 | 1ku    
30    
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
Delta-Sigma    
Differential    
   
Int    
Oscillator    
0.25    
-0.25    
4.5    
5.5    
4.5    
5.5    
12    
70    
70.5    
-84    
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