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参数资料
| 型号： | 5962R9675501V9X |
| 厂商： | INTERSIL CORP |
| 元件分类： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 12-BIT DAC, UUC24 |
| 封装： | DIE-24 |
| 文件页数： | 6/7页 |
| 文件大小： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| 5962R9679801VCA | 功能描述:校验器 IC RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| 5962R9679801VHA | 功能描述:校验器 IC RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| 5962R9679801VIA | 功能描述:校验器 IC RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| 5962R9679801VXA | 功能描述:校验器 IC RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| 5962R9679802VCA | 制造商:Texas Instruments 功能描述:5962R9679802VCA HIGH SPEED DUAL COMPARAT - Rail/Tube |
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