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MAX117CPIN/a3avai+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Down
MAX117CAIMAXIM ?N/a25avai+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Down
MAX117CAIMAXN/a38avai+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Down
MAX117CAIMAXIMN/a11avai+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Down


MAX117CAI ,+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-DownFeatures' +3.0V to +3.6V Single-Supply Operation The MAX113/MAX117 are microprocessor-compatible,8- ..
MAX117CAI ,+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-DownApplications*Dice are specified at T = +25°C, DC parameters only.ABattery-Powered Systems Portable ..
MAX117CAI ,+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-DownELECTRICAL CHARACTERISTICS(V = +3V to +3.6V, REF+ = 3V, REF- = GND, Read Mode (MODE = GND), T = T t ..
MAX117CAI+ ,+3V, 400ksps, 4/8 Channel, 8-Bit ADCs with 1µA Power DownApplications*Dice are specified at T = +25°C, DC parameters only.ABattery-Powered Systems Portable ..
MAX117CPI ,+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Downapplications. (In burst' Internal Track/Holdmode, the ADC wakes up from a low-power state at' Ratio ..
MAX11800ETC+T ,Low-Power, Ultra-Small Resistive Touch-Screen Controllers with I²C/SPI InterfaceFeatures Available in the MAX11800/MAX11801 Only . . . . . . . . . . . . . . . . . . . . . . . . . ..
MAX3490CPA ,3.3V-Powered / 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3490CPA ,3.3V-Powered / 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3490CPA+ ,3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers
MAX3490ECSA ,3.3V-Powered / 15kV ESD-Protected / 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3490ECSA ,3.3V-Powered / 15kV ESD-Protected / 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3490ECSA+ ,3.3V Powered, ±15kV ESD-Protected, 12Mbps, Slew-Rate-Limited True RS-485/RS-422 Transceivers


MAX117CAI-MAX117CPI
+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Down
_______________General Description
The MAX113/MAX117 are microprocessor-compatible,
8-bit, 4-channel and 8-channel analog-to-digital con-
verters (ADCs). They operate from a single +3V supply
and use a half-flash technique to achieve a 1.8µs con-
version time (400ksps). A power-down pin (PWRDN)
reduces current consumption to 1µA typical. The
devices return from power-down mode to normal oper-
ating mode in less than 900ns, allowing large supply-
current 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.
________________________Applications

Battery-Powered SystemsPortable Equipment
System-Health MonitoringRemote Data Acquisition
Communications Systems
____________________________Features
+3.0V to +3.6V Single-Supply Operation 4 (MAX113) or 8 (MAX117) Analog Input ChannelsLow Power:1.5mA (operating mode)
1µA (power-down mode)
Total Unadjusted Error ≤1LSBFast Conversion Time: 1.8µs per ChannelNo External Clock RequiredInternal Track/HoldRatiometric Reference InputsInternally Connected 8th Channel Monitors
Reference Voltage (MAX117)
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
_________________________________________________________Functional Diagram

19-1081; Rev 1; 8/96
Ordering Information continued at end of data sheet.

*Dice are specified at TA= +25°C, DC parameters only.
**Contact factory for availability.
Pin Configuration appears at end of data sheet.
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(VDD= +3V to +3.6V, REF+ = 3V, REF- = GND, Read Mode (MODE = GND), TA= TMINto TMAX, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDDto GND..............................................................-0.3V to +7V
Digital Input Voltage to GND......................-0.3V to (VDD+ 0.3V)
Digital Output Voltage to GND...................-0.3V to (VDD+ 0.3V)
REF+ to GND..............................................-0.3V to (VDD+ 0.3V)
REF- to GND...............................................-0.3V to (VDD+ 0.3V)
IN_ to GND.................................................-0.3V to (VDD+ 0.3V)
Continuous Power Dissipation (TA= +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
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
ELECTRICAL CHARACTERISTICS (continued)

(VDD= +3V to +3.6V, REF+ = 3V, REF- = GND, Read Mode (MODE = GND), TA= TMINto TMAX, unless otherwise noted.)
Note 1:
Accuracy measurements performed at VDD= +3.0V. Operation over supply range is guaranteed by power-supply rejection test.
Note 2:
Guaranteed by design.
Note 3:
Power-down current increases if logic inputs are not driven to GND or VDD.
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
TIMING CHARACTERISTICS

(VDD= +3V, TA= +25°C, unless otherwise noted.) (Note 4)
Note 4:
Input control signals are specified with tr = tf= 5ns, 10% to 90% of 3V, and timed from a voltage level of 1.3V. Timing
delays get shorter at higher supply voltages. See the Conversion Time vs. Supply Voltage graph in the Typical Operating
Characteristicsto extrapolate timing delays at other power-supply voltages.
Note 5:
See Figure 1 for load circuit. Parameter defined as the time required for the output to cross 0.66V or 2.0V.
Note 6:
See Figure 2 for load circuit. Parameter defined as the time required for the data lines to change 0.5V.
Note 7:
Also defined as the Minimum Address-Valid to Convert-Start Time.
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down

CONVERSION TIME
vs. AMBIENT TEMPERATURE
TEMPERATURE (°C)
tCRD
(NORMALIZED TO VALUE
AT V
= +3.3V, +25°C)
MAX113/117-01
4.010k100k
EFFECTIVE BITS vs.
INPUT FREQUENCY (WR-RD MODE)

INPUT FREQUENCY (Hz)
EFFECTIVE BITS
MAX113/117-02
CONVERSION TIME
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
tCRD
(ns)
MAX113/117-044
AVERAGE POWER CONSUMPTION
vs. SAMPLING RATE USING PWRDN

SAMPLING RATE (ksps)
POWER DISSIPATION (mW)
MAX113/117-06
TOTAL UNADJUSTED ERROR
vs. POWER-UP TIME
MAX113/117-08
tUP (ns)
TUE (LSB)
__________________________________________Typical Operating Characteristics
(VDD= +3V, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
(EXCLUDING REFERENCE CURRENT)
MAX113/117-10
TEMPERATURE (°C)
SUPPLY CURRENT (mA)100-2020
MAX113/MAX117
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
______________________________________________________________Pin Description
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