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参数资料
| 型号： | MAX6220ASA-2.5+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 2.5V 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 基准类型： | 串联，精度 |
| 输出电压： | 2.5V |
| 容差： | ±0.1% |
| 温度系数： | 20ppm/°C |
| 输入电压： | 8 V ~ 40 V |
| 通道数： | 1 |
| 电流 - 静态： | 3.3mA |
| 电流 - 输出： | 15mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 1428 (CN2011-ZH PDF) |
Low-Noise, Precision, +2.5V/+4.096V/+5V
Voltage Reference
_____________________Pin Description
Noise Reduction
To augment wideband noise reduction, add a 1μF
PIN
NAME
FUNCTION
capacitor to the NR pin (Figure 2). Larger values do not
improve noise appreciably ( see Typical Operating
1, 7, 8
2
I.C.
IN
Internally Connected. Do not use .
Positive Power-Supply Input
Characteristics ).
Noise in the power-supply input can affect output
noise, but can be reduced by adding an optional
3
NR
Noise Reduction. Optional capacitor
connection for wideband noise
reduction. Leave open if not used
bypass capacitor to the IN pin and GND.
Bypassing
(Figure 2).
The MAX6220 is stable with capacitive load values from
4
5
6
GND
TRIM
OUT
Ground
External Trim Input. Allows ±1%
output adjustment (Figure 1).
Leave open if not used.
Voltage Reference Output
0μF to 100μF, for all values of load current. Adding an
output bypass capacitor can help reduce noise and
output glitching caused by load transients.
Applications Information
Negative Regulator
Figure 3 shows how both a +5V and -5V precision ref-
erence can be obtained from a single unregulated +5V
Detailed Description
Temperature Stability
The MAX6220 is a highly stable, low-noise voltage ref-
erence that uses a low-power temperature-compensa-
tion scheme to achieve laboratory-standard temper-
ature stability. This produces a nearly flat temperature
curve, yet does not require the power associated with
heated references.
The output voltage can be trimmed 0.6% (min) by con-
necting a 10k ? potentiometer between OUT and GND,
and connecting its tap to the TRIM pin (Figure 1). The
external trimming does not affect temperature stability.
8V TO 40V INPUT
supply. The MAX865 generates approximately ±9V to
operate both the MAX6220 reference and the MAX480
inverting amplifier. The +5V is inverted by the MAX480.
Resistor R1 is optional, and may be used to trim the
±5V references. R2 and R4 should be matched, both in
absolute resistance and temperature coefficient. R3 is
optional, and is adjusted to set the -5V reference.
8V TO 40V INPUT
IN
OUT
REFERENCE OUT
IN
OUT
REFERENCE OUT
MAX6220
2.2 μ F*
MAX6220
NR
GND
TRIM
10k ?
1 μ F
NR
GND
TRIM
*OPTIONAL
Figure 1. Output Voltage Adjustment
Figure 2. Noise-Reduction Capacitor
8
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6220ASA-4.1 | 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 |
| MAX6220ASA-4.1+ | 功能描述:基准电压& 基准电流 2.5V/+4.096V/5V Voltage Ref 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 |
| MAX6220ASA-4.1+T | 功能描述:基准电压& 基准电流 2.5V/+4.096V/5V Voltage Ref 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 |
| MAX6220ASA41 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage Reference |
| MAX6220ASA-5.0 | 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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