参数资料
| 型号： | MX584TH |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES ADJ TO-99-8 |
| 标准包装： | 20 |
| 基准类型： | 系列，可调式 |
| 输出电压： | 2.5V，5V，7.5V，10V |
| 容差： | ±10mV |
| 温度系数： | 15ppm/°C |
| 输入电压： | 4.5 V ~ 30 V |
| 通道数： | 1 |
| 电流 - 静态： | 1mA |
| 电流 - 输出： | 10mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-99-8 金属罐 |
| 供应商设备封装： | TO-99-8 |
| 包装： | 管件 |
| 其它名称： | Q1062219 |
Pin-Programmable, Precision Voltage
Reference
Detailed Description
Table 1. Programming Pin Connections
As shown in Figure 1, most applications of the MX584
require no external components. Connections to +V S
and COMMON (COMMON is also tied to the case in the
TO-99 metal package) with all other pins unconnected
result in a buffered +10.00V output at pin 1. The other
pretrimmed voltages are obtained by strapping pins as
shown in Table 1. If one or more external buffer ampli-
fiers are connected to the programming pins (pins 2, 3),
multiple outputs can be obtained from one reference.
OUTPUT VOLTAGE
(V)
10
7.5
5.0
2.5
PROGRAMMING (OUTPUT ON PIN 1)
Pins 2 and 3 are unconnected
Connect pins 2 and 3 together
Connect pins 2 and 1 together
Connect pins 3 and 1 together
Other Output Voltages
The MX584 can be adjusted to a different output volt-
+(V OUT + 2.5V) TO +30V
age by adding one or more resistors as in Figure 2. As
the diagram shows, the reference can be thought of as
a 1.215V bandgap followed by a noninverting amplifier.
If R1 and R2 are used alone, the adjustment range is
widest but the resolution of the trim may be too coarse,
even when a multi-turn trip pot is used.
When adding external resistors, output voltages well
8
+V S
MX584
10.0V
5.0V
2.5V
1
2
3
V OUT ,
+2.5V, +5.0V, +7.5V, +10V
above 10V can be obtained. R2 should therefore be
chosen carefully since it sets the maximum output volt-
age. R2’s resistance should not be so low as to jeopar-
dize other circuits if R1 is misadjusted.
The fixed output voltages can also be varied by con-
necting only one resistor, as in the dashed lines in
Figure 2. Connecting R3 alone raises V OUT while R4
alone lowers it. These resistors (or potentiometers)
must have very low temperature coefficients if accuracy
over temperature is to be unaffected by the adjustment.
If fine adjustment of the output is all that is required, the
4
Figure 1. Basic Connection for Positive Outputs
V SUPPLY
8
+V S
circuit of Figure 3 is recommended. It provides good
stability and resolution for a trim range of ±200mV. If
MX584
10V 1
V OUT
the 2.5V output is adjusted, R2 should be connected to
V BG , pin 6, and the trim range should be limited to
±100mV.
5V 2
R4
Voltage Temperature Coefficient
+1.215V
8k ?
The temperature characteristic of the MX584 consis-
tently follows an "S-curve" as shown in the Typical
+2.5V*
2.5V 3
R1
Operating Characteristics . A five-point 100% test guar-
antees compliance with -55°C to +125°C specifications
and a three-point 100% test guarantees 0°C to +70°C
specifications.
The tolerance specifications in the Electrical
Characteristics table state the maximum deviation from
4k ?
4k ?
V BG 5
COM 4
R3
R2
the reference’s initial value at +25°C. By adding the
maximum deviation for a given device to its initial toler-
ance, the total possible error is determined.
*THE 2.5V TAP (PIN 3) IS USED INTERNALLY AS A BIAS POINT AND SHOULD
NOT BE CHANGED BY MORE THAN 100mV IN ANY TRIM CONFIGURATION.
Figure 2. Variable Output Options
4
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MX584TH/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| MX584TH/HR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| MX584TQ | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| MX584TQ/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| MX584TQ/883B | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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