MAX1205

AVDD to AGND, DGND..........................................................+7V
DVDD to DGND, AGND..........................................................+7V
DRVDD to DGND, AGND .......................................................+7V
INP, INN, RFPF, RFPS, RFNF, RFNS,
CLK, CM.....................................(AGND - 0.3V) to (AVDD + 0.3V)
Digital Inputs to DGND ............................-0.3V to (DVDD + 0.3V)
Digital Output (DAV) to DGND ..............-0.3V to (DRVDD + 0.3V)
Other Digital Outputs to DGND.............-0.3V to (DRVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
44-Pin MQFP (derate 11.11mW/°C above +70°C)........889mW
Operating Temperature Ranges (TA)
MAX1205CMH .....................................................0°C to +70°C
MAX1205EMH ..................................................-40°C to +85°C
Storage Temperature Range ..........................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C


Description

The MAX1205 is a 14-bit, monolithic, analog-to-digital converter (ADC) capable of conversion rates up to 1Msps. This integrated circuit, built on a CMOS process, uses a fully differential, pipelined architecture with digital error correction and a short self-calibration procedure that corrects for capacitor and gain mismatches and ensures 14-bit linearity at full sample rates. 

An on-chip track/hold (T/H) maintains superb dynamic performance up to the Nyquist frequency. The MAX1205 operates from a single +5V supply. The fully differential inputs allow an input swing of ±VREF. 

The reference is also differential, with the positive reference (RFPF) typically connected to +4.096V and the negative reference (RFNF) connected to analog ground. Additional sensing pins (RFPS, RFNS) are provided to compensate for any resistive-divider action that may occur due to finite internal and external resistances in the reference traces and the on-chip resistance of the reference pins. A single-ended input is also possible using two operational amplifiers. 

The power dissipation is typically 257mW at +5V, at a sampling rate of 1Msps. The device employs a CMOScompatible, 14-bit parallel, two's complement output data format. For higher sampling rates, the MAX1201 is a 2.2Msps pin-compatible upgrade to the MAX1205. The MAX1205 is available in an MQFP package, and operates over the commercial (0°C to +70°C) and the extended (-40°C to +85°C) temperature ranges.