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参数资料
| 型号： | HI5731-EVS |
| 厂商： | Intersil |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | EVALUATION PLATFORM SOIC HI5731 |
| 标准包装： | 1 |
| DAC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 100M |
| 数据接口： | 并联 |
| 设置时间： | 20ns |
| DAC 型： | 电流 |
| 工作温度： | -40°C ~ 85°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | HI5731 |
Application Note 9602
0.8
0.6
11
INPUT CODE GREATER THAN ZERO
GREATER THAN
0.4
-1.0 LSB
ERROR
0.2
0
-0.2
10
01
(MISSING CODE)
-0.5 LSB ERROR
-0.4
-0.6
00
OUTPUT
VOLTAGE
0
500
1000
1500
2000
2500
3000
3500
4000
FIGURE 6. DNL EXAMPLE
0.6
0.4
CODE
FIGURE 5A. INL TYPICAL PERFORMANCE CURVE
The Control Ampli?er
The internal control ampli?er converts the reference voltage
appearing on the REFOUT pin to a reference current via the
circuit shown in Figure 7A. The bias voltage generated at the
control ampli?er output is used to mirror this current in all of
the precision current cells.
0.2
R SET
0
-0.2
REF OUT
+
-
CONTROL
AMP OUT
-0.4
V EE
-0.6
FIGURE 7A.
0
500
1000
1500
2000
2500
3000
3500
4000
Adjusting Full Scale
CODE
FIGURE 5B. TYPICAL DNL PERFORMANCE CURVE
Differential Linearity and Missing Codes
For a D/A Converter, the differential non-linearity is the worst
case deviation from the ideal step size throughout the entire
code range. For the HI5731, this worst case deviation is said
to be at most 1.0 LSB in magnitude. For any given D/A
converter, to guarantee no missing codes the converter must
be monotonic.
The de?nition of monotonicity is; as the input code is
increased the output should increase. When an input code is
increased and the output of the DAC does not increase or
reverses direction, then this converter is assumed to be non-
monotonic, or missing codes.
Monotonicity is guaranteed as long as a DNL value of
greater than -1.0 LSB is maintained.
Shown in Figure 6, as the input code increases the output
voltage should increase. When an error of greater than 1.0
LSB is incurred, that bit can be assumed to be a missing
code since the output did not increase but rather remained
the same.
3-3
The R SET pin is used to set the Full Scale Output Current.
The output current is a function of the reference voltage
applied to the CONTROL AMP IN pin and the value of the
R SET resistor. To calculate the I OUT Full Scale Current use
the following formula:
I OUT Full Scale = 16 x (REF OUT IN/R SET )
So where REF OUT = -1.20V
and R SET = 931 ?
I OUT = -20.62mA
To adjust the output full scale current, use a potentiometer in
rheostat mode as shown in Figure 8B.
R SET (17)
100 ?
909 ?
FIGURE 7B. FULL SCALE OUTPUT APPLICATION CIRCUIT
相关PDF资料 |
PDF描述 |
|---|---|
| HI5741-EVS | EVALUATION PLATFORM HI5741 |
| HI5760EVAL1 | EVALUATION PLATFORM SOIC HI5760 |
| HI5762EVAL2 | EVALUATION MOD FOR HI5762 AMP |
| HI5767EVAL1 | EVALUATION PLATFORM HI5767 |
| HI5767EVAL2 | EVALUATION PLATFORM HI5767 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HI5735 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:12-Bit, 80 MSPS, High Speed Video D/A Converter |
| HI5735_04 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:12-Bit, 80 MSPS, High Speed Video D/A Converter |
| HI5735KCB | 功能描述:IC DAC 12-BIT 80MSPS 28-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| HI5735KCBS2503 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HI5735KCBZ | 功能描述:数模转换器- DAC 28 COMTEMP D/A 12 BIT 80 MHZ -5 2V RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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