MX7672

The MX7672 is a 12-bit, high-speed, BiCMOS, analog-to- digital converter (ADC) that performs conversions in as little as 3p.s while consuming only 110mW of power. The MX7672 is a plug-in replacement for AD7672. The MX7672 requires an external -5v reference. A buffered reference input minimizes reference current requirements and allows a single reference to drive several ADCs. External reference specifications can be chosen to suit the accuracy of the application. The ADC clock can be driven from either a crystal or an external clock source, such as a microprocessor (uP) clock. Analog input range is pin-selectable for 0 to +5V, to +10V, or +5V, making the ADC ideal for data-acquisition and analog input/output cards. A high-speed digital interface (125ns data-access time) with three-state data outputs is compatible with most Ps.

The features of MX7672 can be summarized as (1)plug-in replacement for AD7672; (2)12-bit resolution and accuracy; (3)fast conversion times: MX7672_ _03: 3s, MX7672_ _05 - 53s, MX7672_ _10 -10s; (4)operates with +5V end -12V supplles; (5)buttered reference input; (6)low 110mW power consumption; (7)choice ot +5V, +10V or ±5V input ranges; (8)fast 125ns bus-access time.

The absolute maximum ratings of MX7672 are (1)VDD to DGND: -0.3V to +7V; (2)VSS to DGND: +0.3V to -17V; (3)AGND to DGND: -0.3V to; (4)AIN1, AIN2 to AGND: -15V to +15V; (5)VREF to AGND: VSS-0.3V to VDD+0.3V; (6)digital lnptut voltage to DGND (CLKIN, OS, RD): -0.3V to VDD+0.3V; (7)digital output voltage to DGND (D11-DO, BUSY, CLKOUT): -0.3V to VDD+0.3V; (8)continuous power dissipation (any package) to +75°C: 1000mW; (9)derate above +75°C by: 10mW/°C; (10)operating temperature ranges: MX7672K_ /L_: 0°C to +70°C, MX7672B_ /C_: -40°C to +85°C, MX7672T_ /U_: -55°C to +125°C; (11)storage temperature range: -65°C to +150°C; (12)lead temperature (soldering, 10 sec): +300°C.