MAX113/MAX114

Battery-Powered Systems
Portable Equipment
System-Health Monitoring
Remote Data Acquisition
Communications Systems

V_DD to GND..............................................................-0.3V to +7V
Digital Input Voltage to GND ......................-0.3V to (V_DD + 0.3V)
Digital Output Voltage to GND ...................-0.3V to (V_DD + 0.3V)
REF+ to GND..............................................-0.3V to (V_DD + 0.3V)
REF- to GND...............................................-0.3V to (V_DD + 0.3V)
IN_ to GND .................................................-0.3V to (V_DD + 0.3V)
Continuous Power Dissipation (T_A = +70°C)
 24 Narrow Plastic DIP
 (derate 13.33mW/°C above +70°C) ................................1.08W
 24 SSOP (derate 8.00mW/°C above +70°C).................640mW
 24 Narrow CERDIP (derate 12.50mW/°C above +70°C) .....1W
 28 Wide Plastic DIP
 (derate 14.29mW/°C above +70°C) ................................1.14W
 28 SSOP (derate 9.52mW/°C above +70°C).................762mW
 28 Wide CERDIP (derate 16.67mW/°C above +70°C)....1.33W
Operating Temperature Ranges
 MAX113C_G/MAX117C_I ....................................0°C to +70°C
 MAX113E_G/MAX117E_I..................................-40°C to +85°C
 MAX113MRG/MAX117MJI..............................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C

The MAX113/MAX117 are microprocessor-compatible, 8-bit, 4-channel and 8-channel analog-to-digital converters (ADCs). They operate from a single +3V supply and use a half-flash technique to achieve a 1.8µs conversion time (400ksps). A power-down pin (PWRDN) reduces current consumption to 1µA typical. The devices return from power-down mode to normal operating mode in less than 900ns, allowing large supplycurrent reductions in burst-mode applications. (In burst mode, the ADC wakes up from a low-power state at specified intervals to sample the analog input signals.) Both converters include a track/hold, enabling the ADC to digitize fast analog signals.

Microprocessor (µP) interfaces are simplified because the ADC can appear as a memory location or I/O port without external interface logic. The data outputs use latched, three-state buffer circuitry for direct connection to an 8-bit parallel µP data bus or system input port. The MAX113/MAX117 input/reference configuration enables ratiometric operation.

The 4-channel MAX113 is available in a 24-pin DIP or SSOP. The 8-channel MAX117 is available in a 28-pin DIP or SSOP. For +5V applications, refer to the MAX114/MAX118 data sheet.