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參數(shù)資料
| 型號(hào)： | SP7545JIL |
| 廠商： | SPECTRUM CONTROL INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 2 us SETTLING TIME, 12-BIT DAC, PQCC20 |
| 封裝： | PLASTIC, LCC-20 |
| 文件頁(yè)數(shù)： | 5/6頁(yè) |
| 文件大小： | 124K |
| 代理商： | SP7545JIL |
SP7545
12–Bit, Buffered Multiplying DAC
Copyright 2000 Sipex Corporation
5
CHIP SELECT
WRITE
DATA IN
tCS
tWR
tCH
tDS
tDH
DATA VALID
VIH
VIL
WRITE MODE:
CS and WR low, DAC responds to DATA INPUTS (D0–D11).
HOLD MODE:
Either CS or WR high, DATA INPUTS are locked out; DAC holds
last data present when either CS or WR was asserted high.
TIMING
AC DYNAMICS
(T
A=25°C; VDD =+5V or +15V as noted, VREF = +10V; IO1 = AGND = GND = 0V; unipolar unless otherwise noted.)
PARAMETER
MIN.
TYP.
MAX.
UNIT
CONDITIONS
Refer to Timing Diagram
t
CS ≥ tWR,; tCH ≥ 0
t
CS— Chip Select to Write Setup Time
280
200
ns
V
DD = +5V
380
ns
V
DD = +5V; from TMIN to TMAX
180
120
ns
V
DD = +15V
200
ns
V
DD = +15V; from TMIN to TMAX
t
CH — Chip Select to Write Hold Time
0
ns
From T
MIN to TMAX
t
WR — Write Pulse Width
250
175
ns
V
DD = +5V
400
ns
V
DD = +5V; from TMIN to TMAX
250
175
ns
V
DD = +15V
400
ns
V
DD = +15V; from TMIN to TMAX
t
DS — Data Setup Time
140
100
ns
V
DD = +5V
210
ns
V
DD = +5V; from TMIN to TMAX
90
60
ns
V
DD = +15V
120
ns
V
DD = +15V; from TMIN to TMAX
t
DH — Data Hold Time
10
ns
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