參數(shù)資料
型號: MAX500BEJE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: DAC
英文描述: CMOS, Quad, Serial-Interface 8-Bit DAC
中文描述: SERIAL INPUT LOADING, 2.5 us SETTLING TIME, 8-BIT DAC, CDIP16
封裝: CERAMIC, DIP-16
文件頁數(shù): 6/12頁
文件大?。?/td> 127K
代理商: MAX500BEJE
M
sink, as well as source up to 5mA. This is especially
important in single-supply applications, where V
SS
is
connected to AGND, so that the zero error is kept at or
under 1/2LSB (V
REF
= +10V). A plot of the Output Sink
Current vs. Output Voltage is shown in the Typical
Operating Characteristics section.
Digital Inputs
and Interfac e Logic
The digital inputs are compatible with both TTL and 5V
CMOS logic; however, the power-supply current (I
DD
)
is somewhat dependent on the input logic level. Supply
current is specified for TTL input levels (worst case) but
is reduced (by about 150μA) when the logic inputs are
driven near DGND or 4V above DGND.
Do not drive the digital inputs directly from CMOS logic
running from a power supply exceeding 5V. When driv-
ing SCL through an opto-isolator, use a Schmitt trigger
to ensure fast SCL rise and fall times.
The MAX500 allows the user to choose between a
3-wire serial interface and a 2-wire serial interface.
The choice between the 2-wire and the 3-wire inter-
face is set by the
LOAD
signal. If the
LOAD
is allowed
to float (it has a weak internal pull-up resistor to V
DD
),
the 2-wire interface is selected. If the
LOAD
signal is
kept to a TTL-logic high level, the 3-wire interface
is selected.
3-Wire Interfac e
The 3-wire interface uses the classic Serial Data (SDA),
Serial Clock (SCL), and
LOAD
signals that are used
in standard shift registers. The data is clocked in on
the falling edge of SCL until all 10 bits (8 data bits and
2 address bits) are entered into the shift register.
CMOS , Quad, S erial-Interfac e
8-Bit DAC
6
_______________________________________________________________________________________
INPUT
(5V/div)
OUTPUT
(20mV/div)
DYNAMIC RESPONSE
(V
SS
= -5V or 0V)
2
μ
s/div
LDAC
5V/div
OUTPUT
5V/div
V
SS
V
DD
PMOS
(+)
FROM
INVERTED
DAC
OUTPUT
INPUTS
C
C
(-)
NPN
EMITTER
FOLLOWER
PULL-UP
V
OUT
NMOS
ACTIVE
PULL-DOWN
CIRCUIT
Figure 2. Positive and Negative Settling Times
Figure 3. Dynamic Response
Figure 4. Simplified Output Buffer Circuit
POSITIVE STEP
(V
SS
= -5V or 0V)
1
μ
s/div
LDAC
5V/div
OUTPUT
100mV/div
NEGATIVE STEP
(V
SS
= -5V or 0V)
1
μ
s/div
LDAC
5V/div
OUTPUT
100mV/div
相關(guān)PDF資料
PDF描述
MAX500AEJE Circular Connector; No. of Contacts:128; Series:MS27466; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
MAX500AEWE Circular Connector; No. of Contacts:22; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:13-35 RoHS Compliant: No
MAX500BMLP CMOS, Quad, Serial-Interface 8-Bit DAC
MAX500BCWE CMOS, Quad, Serial-Interface 8-Bit DAC
MAX500BCPE CMOS, Quad, Serial-Interface 8-Bit DAC
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