MAX1224CTC-T

Mounting Style :
Packaging :
Architecture : SAR
Supply Voltage - Max : 3.6 V
Supply Voltage - Min : 2.7 V
Input Type : Voltage
Resolution : 12 bit
Number of Converters : 1
Number of ADC Inputs : 1
SNR : No
Voltage Reference : External
Maximum Operating Temperature : + 70 C
Maximum Power Dissipation : 1349 mW
Interface Type : 3-Wire, Microwire, QSPI, Serial, SPI
Conversion Rate : 1.5 MSPs
Package / Case : TQFN EP


Features:

`1.5Msps Sampling Rate
`Only 18mW (typ) Power Dissipation
`Only 1A (max) Shutdown Current
`High-Speed, SPI-Compatible, 3-Wire Serial Interface
`69dB S/(N + D) at 525kHz Input Frequency
`Internal True-Differential Track/Hold (T/H)
`External Reference
`No Pipeline Delays
`Small 12-Pin TQFN Package


Application

Data Acquisition Communications Bill Validation Portable Instruments Motor Control


Pinout

Specifications

V_DD to GND........................................................-0.3V to +6V
V_L to GND ..........-0.3V to the lower of (V_DD + 0.3V) and +6V
Digital Inputs
to GND ..............-0.3V to the lower of (V_DD + 0.3V) and +6V
Digital Output
to GND.................-0.3V to the lower of (V_L + 0.3V) and +6V
Analog Inputs and
REF to GND........-0.3V to the lower of (V_DD + 0.3V) and +6V
RGND to GND ................................................-0.3V to +0.3V
Maximum Current into Any Pin.....................................50mA
Continuous Power Dissipation (T_A = +70°C)
12-Pin TQFN (derate 16.9mW/°C above +70°C) ..1349mW
Operating Temperature Ranges
MAX127_ CTC ...............................................0°C to +70°C
MAX127_ ETC.............................................-40°C to +85°C
Junction Temperature..............................................+150°C
Storage Temperature Range ..................-60°C to +150°C
Lead Temperature (soldering, 10s) ........................+300°C


Description

The MAX1224/MAX1225 low-power, high-speed, serialoutput, 12-bit, analog-to-digital converters (ADCs) operate at up to 1.5Msps. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over singleended inputs. A standard SPI?/QSPI?/MICROWIRE? interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces. The MAX1224/MAX1225 operate from a single +2.7V to +3.6V supply voltage and require an external reference.

The MAX1224 has a unipolar analog input, while the MAX1225 has a bipolar analog input. These devices feature a partial power-down mode and a full power-down mode for use between conversions, which lower the supply current to 1mA (typ) and 1A (max), respectively. Also featured is a separate power-supply input (V_L), which allows direct interfacing to +1.8V to V_DD digital logic. The fast conversion speed, low-power dissipation, good AC performance, and DC accuracy (±1.5 LSB INL) make the MAX1224/MAX1225 ideal for industrial process control, motor control, and base-station applications.

The MAX1224/MAX1225 come in a 12-pin TQFN package, and are available in the commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges.