MAX1172

Features:

·Monolithic, 12-Bit, 30Msps Converter
·On-Chip Track/Hold
·±2.0V Analog Input Range
·High Input Impedance
·66dB SNR at 1MHz Input
·Low Power: 1.1W
·5pF Input Capacitance
·TTL-Compatible Outputs


Application

·Radar Receivers
·Professional Video
·Instrumentation
·Imaging
·Digital Communications
·Digital Spectrum Analyzers


Specifications

V_CC .......................................................................................+6V
VEE .........................................................................................-6V
Analog Input ........................................................VFB < VIN < VFT
VFB, VFT ................................................................. -3.0V, +3.0V
Reference Ladder Current..................................................12mA
CLK IN ...................................................................................VCC
Digital Outputs.......................................................0mA to -30mA
Operating Temperature Range...............................0°C to +70°C
Junction Temperature (T_j)................................................+175°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C


Description

The MAX1172 analog-to-digital converter (ADC) is a 12-bit monolithic ADC capable of sample rates greater than 30Msps. An on-board input buffer and track/hold function ensure excellent dynamic performance without the need for external components. A 5pF input capacitance minimizes development problems. Logic inputs and outputs are TTL compatible. An overrange output signal is provided to indicate overflow conditions. Output data format is straight binary. Power dissipation is a very low 1.1W with power-supply voltages of +5.0V and -5.2V. The MAX1172 also provides a wide input voltage range of ±2.0V.
The MAX1172 is available in a 32-lead ceramic sidebrazed package and a 44-lead surface-mount CERQUAD package.