參數(shù)資料
型號(hào)： MAX118
廠商： Maxim Integrated Products, Inc.
英文描述： +5V, 1Msps, 4 & 8-Channel, 8-Bit ADCs with 1レA Power-Down
中文描述： +5V、1Msps、4及8通道、8位ADC，帶有1µA關(guān)斷模式
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 102K
代理商： MAX118
_______________General Desc ription
The MAX114/MAX118 are microprocessor-compatible,
8-bit, 4-channel and 8-channel analog-to-digital con-
verters (ADCs). They operate from a single +5V supply
and use a half-flash technique to achieve a 660ns con-
version time (1Msps). A power-down (
PWRDN
) pin
reduces current consumption typically to 1μA. The
devices return from power-down mode to normal oper-
ating mode in less than 200ns, 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
MAX114/MAX118 input/reference configuration enables
ratiometric operation.
The 4-channel MAX114 is available in a 24-pin DIP or
SSOP. The 8-channel MAX118 is available in a 28-pin
DIP or SSOP. For +3V applications, refer to the
MAX113/MAX117 data sheet.
________________________Applic ations
High-Speed DSP
Remote Data Acquisition
Portable Equipment
Communications Systems
_________________________________________________________Func tional Diagram
____________________________Features
o
Single +5V Supply Operation
o
4 (MAX114) or 8 (MAX118) Analog Input Channels
o
Low Power: 40mW (operating mode)
5μW (power-down mode)
o
Total Unadjusted Error
≤
1LSB
o
Fast Conversion Time: 660ns per Channel
o
No External Clock Required
o
Internal Track/Hold
o
1MHz Full-Power Bandwidth
o
Internally Connected 8th Channel Monitors
Reference Voltage (MAX118)
M
+5V, 1Msps, 4 & 8-Channel,
8-Bit ADCs with 1μA Power-Down
________________________________________________________________ Maxim Integrated Products
1
4-BIT
DAC
4-BIT
FLASH
ADC
(4MSBs)
4-BIT
FLASH
ADC
(4LSBs)
TIMING AND
CONTROL
ADDRESS
LATCH
DECODE
REF+
16
THREE-
STATE
OUTPUT
DRIVERS
D7
D6
D5
D4
D3
D2
D1
D0
MUX
*IN7
*IN6
*IN5
IN4
IN3
IN2
IN1
*IN8
Σ
REF+
A0
A1
A2
REF-
PWRDN
RD
MODE
INT
WR/RDY
CS
MAX114/MAX118
* MAX118 ONLY
19-1083; Rev 1; 8/96
PART
MAX114
CNG
MAX114CAG
MAX114C/D
MAX114ENG
MAX114EAG
MAX114MRG
Ordering Information continued on last page.
*Dice are specified at T
A
= +25°C, DC parameters only.
**Contact factory for availability.
Pin Configurations appear on last page.
0°C to +70°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
24 Narrow Plastic DIP
24 SSOP
Dice*
24 Narrow Plastic DIP
24 SSOP
24 Narrow CERDIP**
______________Ordering Information
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
-55°C to +125°C
-40°C to +85°C
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