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MAX117 반도체 회로 부품 판매점

8-Bit ADCs



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


MAX117 데이터시트, 핀배열, 회로
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1µA Power-Down
ABSOLUTE MAXIMUM RATINGS
VDD to 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
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.
ELECTRICAL CHARACTERISTICS
(VDD = +3V to +3.6V, REF+ = 3V, REF- = GND, Read Mode (MODE = GND), TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
ACCURACY (Note 1)
Resolution
N
8
Total Unadjusted Error
TUE
±1
Differential Nonlinearity
DNL No-missing-codes guaranteed
±1
Zero-Code Error
±1
Full-Scale Error
±1
Channel-to-Channel Mismatch
±1/4
DYNAMIC PERFORMANCE
Signal-to-Noise Plus
Distortion Ratio
Total Harmonic Distortion
SINAD
THD
MAX11_C/E, fSAMPLE = 400kHz, fIN = 30.273kHz
MAX11_M, fSAMPLE = 340kHz, fIN = 30.725kHz
MAX11_C/E, fSAMPLE = 400kHz, fIN = 30.273kHz
MAX11_M, fSAMPLE = 340kHz, fIN = 30.725kHz
45
45
-50
-50
Spurious-Free Dynamic
Range
SFDR
MAX11_C/E, fSAMPLE = 400kHz, fIN = 30.273kHz
MAX11_M, fSAMPLE = 340kHz, fIN = 30.725kHz
50
50
Input Full-Power Bandwidth
VIN_ = 3Vp-p
0.3
Input Slew Rate, Tracking
0.28 0.5
ANALOG INPUT
Input Voltage Range
VIN_
VREF-
VREF+
Input Leakage Current
IIN_ GND < VIN_ < VDD
±3
Input Capacitance
CIN_
32
REFERENCE INPUT
Reference Resistance
RREF
124
REF+ Input Voltage Range
VREF-
VDD
REF- Input Voltage Range
GND
VREF+
UNITS
Bits
LSB
LSB
LSB
LSB
LSB
dB
dB
dB
MHz
V/µs
V
µA
pF
k
V
V
2 _______________________________________________________________________________________




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