MAX113 Maxim, MAX113 Datasheet
MAX113
Manufacturer Part Number
MAX113
Description
+3V / 400ksps / 4/8-Channel / 8-Bit ADCs with 1UA Power-Down
Manufacturer
Maxim
Datasheet
1.MAX113.pdf
(12 pages)
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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
19-1081; Rev 1; 8/96
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
_________________________________________________________Functional Diagram
_______________General Description
Battery-Powered Systems
System-Health Monitoring
Communications Systems
*MAX117 ONLY
________________________________________________________________ Maxim Integrated Products
*IN7
*IN6
*IN5
IN3
IN4
IN2
IN1
*IN8
Portable Equipment
Remote Data Acquisition
A0
ADDRESS
MUX
DECODE
LATCH
A1
8-Bit ADCs with 1µA Power-Down
A2
REF-
+3V, 400ksps, 4/8-Channel,
PWRDN
REF+
16
REF+
MODE
____________________________Features
Ordering Information continued at end of data sheet.
*Dice are specified at T
**Contact factory for availability.
Pin Configuration appears at end of data sheet.
4-BIT
TIMING AND
______________Ordering Information
MAX113CNG
MAX113CAG
MAX113C/D
MAX113ENG
MAX113EAG
MAX113MRG
DAC
CONTROL
(4LSBs)
+3.0V to +3.6V Single-Supply Operation
4 (MAX113) or 8 (MAX117) Analog Input Channels
Low Power: 1.5mA (operating mode)
Total Unadjusted Error ≤ 1LSB
Fast Conversion Time: 1.8µs per Channel
No External Clock Required
Internal Track/Hold
Ratiometric Reference Inputs
Internally Connected 8th Channel Monitors
Reference Voltage (MAX117)
FLASH
4-BIT
RD
ADC
(4MSBs)
FLASH
PART
4-BIT
ADC
INT
CS
WR/RDY
1µA (power-down mode)
MAX113/MAX117
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
A
DRIVERS
OUTPUT
THREE-
STATE
= +25°C, DC parameters only.
D7
D6
D5
D4
D3
D2
D1
D0
24 Narrow Plastic DIP
24 SSOP
Dice*
24 Narrow Plastic DIP
24 SSOP
24 Narrow CERDIP**
PIN-PACKAGE
1
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