The MAX1204BCAP+ is an 8-channel, serial, 10bit ADC with 3V digital interface in 20 pin SSOP package. This 10bit data acquisition system specifically designed for use in applications with mixed +5V (analogue) and +3V (digital) supply voltages. It operates with single +5V analogue supply or dual ±5V analogue supplies. The device combines an 8-channel multiplexer, internal track/hold, serial interface with high conversion speed and low power consumption. A 4-wire serial interface connects directly to SPI/MICROWIRE devices without external logic and serial strobe output allows direct connection to TMS320 family DSPs. The MAX1204 uses either internal clock or an external serial interface clock to perform successive approximation analogue to digital conversions. The serial interface operates at up to 2MHz. It has an internal 4.096V reference and reference buffer amplifier that simplifies gain trim. A hard wired active-low SHDN pin and two software selectable power-down modes are provided.
Supply voltage range from 4.75V to 5.5V
Operating temperature range from 0°C to 70°C
±1LSB relative accuracy and ±1LSB differential nonlinearity (no missing codes over temperature)
8-channel single-ended or 4-channel differential inputs
User adjustable output logic levels (2.7V to 5.25V)
Positive supply current of 1.5mA (operating mode), 2μA (full power-down) & 30μA (fast power-down)
133KHz sampling rate, 4.5MHz small signal bandwidth (-3dB roll-off) and 800KHz full power bandwidth
Software configurable unipolar/bipolar inputs
Pin compatible 12bit upgrade to MAX1202 device
Offset error of ±2LSB, gain error of ±2LSB and gain temperature coefficient of ±0.8ppm/°C
(EN)
