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參數(shù)資料
| 型號(hào)： | 5962R9675501V9X |
| 廠商： | INTERSIL CORP |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 12-BIT DAC, UUC24 |
| 封裝： | DIE-24 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 125K |
| 代理商： | 5962R9675501V9X |
6
Other Considerations
Grounds
The HS-565ARH has two ground terminals, pin 5 (REF GND)
and pin 12 (PWR GND). These should not be tied together
near the package unless that point is also the system signal
ground to which all returns are connected. (If such a point
exists, then separate paths are required to pins 5 and 12).
The current through pin 5 is near zero DC (Note); but pin 12
carries up to 1.75mA of code - dependent current from bits
1, 2, and 3. The general rule is to connect pin 5 directly to
the system “quiet” point, usually called signal or analog
ground. Connect pin 12 to the local digital or power ground.
Then, of course, a single path must connect the
analog/signal and digital/power grounds.
NOTE: Current cancellation is a two step process within the HS-
565ARH in which code dependent variations are eliminated, the
resulting DC current is supplied internally. First an auxiliary 9-bit R-
2R ladder is driven by the complement of the DACs input code.
Together, the main and auxiliary ladders draw a continuous 2.25mA
from the internal ground node, regardless of input code. Part of the
DC current is supplied by the zener voltage reference, and the
remainder is sourced from the positive supply via a current mirror
which is laser trimmed for zero current through the external terminal
(pin 5).
Layout
Connections to pin 9 (IOUT) on the HS-565ARH are most
critical for high speed performance. Output capacitance of the
DAC is only 20pF, so a small change of additional capacitance
may alter the op amp’s stability and affect settling time.
Connections to pin 9 should be short and few. Component
leads should be short on the side connecting to pin 9 (as for
feedback capacitor C). See the Settling Time section.
Bypass Capacitors
Power supply bypass capacitors on the op amp will serve the
HS-565ARH also. If no op amp is used, a 0.01
F ceramic
capacitor from each supply terminal to pin 12 is sufcient,
since supply current variations are small.
Bipolar (See Figure 2)
±10V
NC
VO
1.69K
All 0’s
All 1’s
R3
R4
-10V
+9.99512V
±5V
VO
Pin 10
1.43K
All 0’s
All 1’s
R3
R4
-5V
+4.99756V
±2.5V
VO
Pin 9
1.1K
All 0’s
All 1’s
R3
R4
-2.5V
+2.49878V
TABLE 1. OPERATING MODES AND CALIBRATION
MODE
CIRCUIT CONNECTIONS
CALIBRATION
OUTPUT
RANGE
PIN 10
TO
PIN 11
TO
RESISTOR
(R)
APPLY
INPUT CODE
ADJUST
TO SET VO
FIGURE 3A. .
FIGURE 3B.
VLSB
SUPPLY
0.1
F
DVM
COMPARATOR
OUT
B
C
10
90
200K
+
-
5
9
10
NC
11
8
2.5K
5K
20V
± 20%
BIAS
TURN ON
TURN OFF
9.95K
2mA
12
HS-565ARH
D
PULSE
GENERATOR
NO. 2
OUT
14
13
23
24
.
5V
P
PULSE
GENERATOR
NO. 1
SYNC
IN
TRIG
OUT
A
~100
kHz
STROBE IN
LSB
50%
DIGITAL
INPUT
DAC
OUTPUT
COMP.
STROBE
COMP.
OUT
“EQUAL BRIGHTNESS”
+3V
0V
-400mV
2V
0.8V
4V
0V
(TURN OFF)
A
B
C
D
50%
tX
tD = COMPARATOR DELAY
SETTLING TIME
-0.50LSB
HS-565ARH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 5962R9679801VCA | 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| 5962R9679801VHA | 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| 5962R9679801VIA | 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| 5962R9679801VXA | 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| 5962R9679802VCA | 制造商:Texas Instruments 功能描述:5962R9679802VCA HIGH SPEED DUAL COMPARAT - Rail/Tube |
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