MAX1272EUA+

MAXIM INTEGRATED PRODUCTS  MAX1272EUA+  模数转换器, 故障保护, 12 bit, 87 kSPS, 单, 4.75 V, 5.25 V, µMAX

The is a fault-protected, 12bit ADC with software selectable input range in 8 pin µMAX package. This software programmable analogue input accepts a variety of voltage ranges ±10V, ±5V, 0 to 10V, 0 to 5V. The software selectable extended analogue input range increases the effective dynamic range to 14bits and provides the flexibility to interface 4mA-20mA powered sensors directly to a single 5V system. It provides fault protection to ±12V, include a 5MHz track/hold T/H bandwidth, 87Ksps throughput rate and internal 4.096V or external 2.40V to 4.18V reference. It has four software programmable power-down modes delayed standby, immediate standby, delayed full power down and immediate full power-down provides low-current shutdown between conversions. It is used in data-acquisition systems and automatic testing.

.

Supply voltage range is 4.75V to 5.25V

.

Operating temperature range from -40°C to 85°C

.

SPI/QSPI/MICROWIRE compatible 3-wire interface

.

Low power supply current of 1.5mA at 87Ksps, 0.4mA at 10Ksps and 0.2mA at 1Ksps

.

Maximum INL is ±1LSB & maximum DNL is ±1LSB at no missing codes over temperature

.

Typical value of SINAD is 72dB, THD is -87 & SFDR is 88dB at 10KHz sine-wave input, ±10VP-P

.

T/H acquisition time is 2.85µs

.

Conversion time of 8.57µs

.

Throughput rate is 87.5Ksps