LTC1608

Features:

 A Complete, 500ksps 16-Bit ADC
 90dB S/(N+D) and 100dB THD (Typ)
 Power Dissipation: 270mW (Typ)
 No Pipeline Delay
 No Missing Codes Over Temperature
 Nap (7mW) and Sleep (10W) Shutdown Modes
 Operates with Internal 15ppm/°C Reference or External Reference
 True Differential Inputs Reject Common Mode Noise
 5MHz Full Power Bandwidth
 ±2.5V Bipolar Input Range
 36-Pin SSOP Package
 Pin Compatible with the LTC1604


Application

 Telecommunications
 Digital Signal Processing
 Multiplexed Data Acquisition Systems
 High Speed Data Acquisition
 Spectrum Analysis
 Imaging Systems


Pinout




Specifications

AV_DD = DV_DD = OV_DD = V_DD (Notes 1, 2)
Supply Voltage (V_DD) ................................................ 6V
Negative Supply Voltage (V_SS) ............................... 6V
Total Supply Voltage (V_DD to V_SS) .......................... 12V
Analog Input Voltage
   (Note 3) ......................... (V_SS 0.3V) to (V_DD + 0.3V)
V_REF Voltage (Note 4) ................. 0.3V to (V_DD + 0.3V)
REFCOMP Voltage (Note 4) ......... 0.3V to (V_DD + 0.3V)
Digital Input Voltage (Note 4) ....................0.3V to 10V
Digital Output Voltage .................. 0.3V to (V_DD + 0.3V)
Power Dissipation ............................................. ..500mW
Operating Temperature Range .................. 0°C to 70°C
Storage Temperature Range .............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C

Description

The LTC^®1608 is a 500ksps, 16-bit sampling A/D converter that draws only 270mW from ±5V supplies. This high performance device includes a high dynamic range sample-and-hold, a precision reference and a high speed parallel output. Two digitally selectable power shutdown modes provide power savings for low power systems.

The LTC1608's full-scale input range is ±2.5V. Outstanding AC performance includes 90dB S/(N+D) and 100dB THD at a sample rate of 500ksps.

The unique differential input sample-and-hold of LTC1608 can acquire single-ended or differential input signals up to its 15MHz bandwidth. The 68dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.

The ADC has P compatible,16-bit parallel output port. There is no pipeline delay in conversion results. A separate convert start input and a data ready signal (BUSY) ease connections to FlFOs, DSPs and microprocessors.