參數(shù)資料
型號: MAX108CHC
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: ADC
英文描述: 【5V, 1.5Gsps, 8-Bit ADC with On-Chip 2.2GHz Track/Hold Amplifier
中文描述: 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PBGA192
封裝: 25 X 25 MM, ESBGA-192
文件頁數(shù): 23/32頁
文件大?。?/td> 428K
代理商: MAX108CHC
asserted, the auxiliary port contained “even” samples
while the primary port contained “odd” samples. After
the RSTOUT is deasserted (which marks the start of the
DREADY clock’s reset phase), note that the order of the
samples in the ports has been reversed. The auxiliary
port also contains an out-of-sequence sample. This is a
consequence of the “swallowed” clock cycle that was
needed to resynchronize DREADY to the reset phase.
Also note that the older sample data is always in the
auxiliary port, regardless of the DREADY phase.
These examples illustrate the combinations that result
with a reset input signal of two clock cycles. It is also
possible to reset the internal MAX108 demux success-
fully with a reset pulse of only one clock cycle, provid-
ed that the setup time and hold-time requirements are
met with respect to the sample clock. However, this is
not recommended when additional external demuxes
are used.
Note that many external demuxes require their reset
signals to be asserted while they are clocked, and may
require more than one clock cycle of reset. More impor-
tantly, if the phase of the DREADY clock is such that a
clock pulse will be “swallowed” to resynchronize, then
no reset output will occur at all. In effect, the RSTOUT
signal will be “swallowed” with the clock pulse. The
best method to ensure complete system reset is to
assert RSTIN for the appropriate number of DREADY
clock cycles required to complete reset of the external
demuxes.
Die Temperature Measurement
For applications that require monitoring of the die tem-
perature, it is possible to determine the die temperature
of the MAX108 under normal operating conditions by
observing the currents I
CONST
and I
PTAT
, at contacts
ICONST and IPTAT. I
CONST
and I
PTAT
are two 100μA
(nominal) currents that are designed to be equal at
+27°C. These currents are derived from the MAX108’s
internal precision +2.5V bandgap reference. I
CONST
is
designed to be temperature independent, while I
PTAT
is
directly proportional to the absolute temperature. These
currents are derived from PNP current sources refer-
enced from V
CC
I and driven into two series diodes con-
nected to GNDI. The contacts ICONST and IPTAT may
be left open because internal catch diodes prevent sat-
uration of the current sources. The simplest method of
determining the die temperature is to measure each
M
±5V, 1.5Gsps, 8-Bit ADC with
On-Chip 2.2GHz Track/Hold Amplifier
______________________________________________________________________________________
23
Figure 19. Reset Output Timing in Demuxed DIV2 Mode (DREADY Realigned)
NOTE:
DREADY PHASE WAS ADJUSTED TO MATCH THE RESET PHASE BY “SWALLOWING” ONE INPUT CLOCK CYCLE.
THE AUXILIARY PORT CONTAINS AN OUT-OF-SEQUENCE SAMPLE AS A RESULT OF THE DELAY.
CLK-
CLK+
t
SU
t
HD
n
n+1
n+2
n+3
n+4
n+5
n+6
n+7
n+8
n+9
n+10
n+11
n+12
n+13
ADC SAMPLE NUMBER
ADC SAMPLES ON THE RISING EDGE OF CLK+
CLOCK PULSE “SWALLOWED”
OUT-OF-SEQUENCE SAMPLE
CLK
DREADY
DREADY+
DREADY-
RSTIN+
RSTIN-
RSTOUT+
RSTOUT-
RESET
INPUT
n-1
n+1
n-2
AUXILIARY
DATA PORT
PRIMARY
DATA PORT
n
n+2
n+4
RESET OUT
DATA PORT
相關(guān)PDF資料
PDF描述
MAX108 【5V, 1.5Gsps, 8-Bit ADC with On-Chip 2.2GHz Track/Hold Amplifier
MAX1090BEEI 400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
MAX1090AEEI 400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
MAX1090ACEI RB Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 15V; Output Voltage (Vdc): 09V; Power: 1W; Low Cost 1W Converter; Power Sharing on Dual Output Version; Industry Standard Pinout; 1kVDC & 2kVDC Isolation Options; Optional Continuous Short Circuit Protected; UL94V-0 Package Material; Efficiency to 85%
MAX1090 400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX108CHC-D 制造商:Maxim Integrated Products 功能描述:ADC SGL FLASH 1.5GSPS 8BIT PARALLEL 192PIN ESBGA - Bulk
MAX108CHC-TD 制造商:Maxim Integrated Products 功能描述:ADC SGL FLASH 1.5GSPS 8BIT PARALLEL 192PIN ESBGA - Tape and Reel
MAX108EVKIT 制造商:Maxim Integrated Products 功能描述:+-5V, 1.5GSPS, 8-BIT ADC WITH ON-CHIP 2.2 GHZ - Bulk
MAX109 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Bit, 2.2Gsps ADC with Track/Hold Amplifier and 1:4 Demultiplexed LVDS Outputs
MAX1090 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface