ADS7841-Q1 Automotive 12-bit 4-channel serial output sampling analog-to-digital converter (ADC) | TI.com

ADS7841-Q1 (ACTIVE)

Automotive 12-bit 4-channel serial output sampling analog-to-digital converter (ADC)

 

Description

The ADS7841 is a 4-channel 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. The resolution is programmable to either 8 bits or 12 bits. Typical power dissipation is 2 mW at a 200-kHz throughput rate and a 5-V supply. The reference voltage (VREF) can be varied between 100 mV and VCC, providing a corresponding input voltage range of 0 V to VREF. The device includes a shutdown mode that reduces power dissipation to under 15 µW. The ADS7841 is specified down to 2.7-V operation.

Low power, high speed, and on-board multiplexer make the ADS7841 ideal for battery-operated systems. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7841 is available in a SSOP-16 package.

Features

  • Qualified for Automotive Applications
  • Single Supply: 2.7 V To 5 V
  • Four-Channel Single-Ended Or Two-Channel Differential Input
  • Up To 200-kHz Conversion Rate
  • ±2 LSB Max INL and DNL
  • No Missing Codes
  • 71-dB Typ SINAD
  • Serial Interface
  • Alternate Source For MAX1247

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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
ADS7841-Q1 ADS7841
12     12    
200     200    
4     4    
Serial     Serial    
-40 to 125     -40 to 85    
SSOP | 16     SSOP | 16    
3.44 | 1ku     2.94 | 1ku    
0.84     1.8    
16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)     16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)    
SAR     SAR    
Single-Ended     Single-Ended    
Multiplexed     Multiplexed    
Ext     Ext    
   
   
5.25     5.25    
0     0    
2.7     2.7    
5.25     5.25    
2.7     2.7    
5.25     5.25    
1     1    
71     72    
73     72    
-78     -78    
Automotive     Catalog    

Design tool

WEBENCH® Designer ADS7841-Q1