参数资料
| 型号： | MAX320EUA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPST 8UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 开关 |
| 电路： | 2 x SPST - NO |
| 导通状态电阻： | 35 欧姆 |
| 电压电源： | 双电源 |
| 电压 - 电源，单路/双路(±)： | ±3 V ~ 18 V |
| 电流 - 电源： | 1µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
MAX320/MAX321/MAX322
Precision, Dual-Supply, SPST
Analog Switches
_______________________________________________________________________________________
5
__________Applications Information
Logic Levels
Calculate the logic thresholds typically as follows: VIH =
(V+ - 1.5V) and VIL = (V+ - 2.5V).
Power-supply consumption is minimized when IN1 and
IN2 are driven with logic-high levels equal to V+ and logic-
low levels well below the calculated VIL of (V+ - 2.5V). IN1
and IN2 can be driven to V- without damage.
Analog Signal Levels
Analog signals that range over the entire supply voltage
(V- to V+) can be switched, with very little change in on-
resistance over the entire voltage range (see
Typical
Operating Characteristics). All switches are bidirec-
tional, so NO_, NC_, and COM_ pins can be used as
either inputs or outputs.
Power-Supply Sequencing
and Overvoltage Protection
Do not exceed the absolute maximum ratings, because
stresses beyond the listed ratings may cause perma-
nent damage to the devices.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+, followed by V-,
before applying analog signals or logic inputs, especial-
ly if the analog or logic signals are not current-limited. If
this sequencing is not possible, and if the analog or
logic inputs are not current-limited to <30mA, add two
small signal diodes (D1, D2) as shown in Figure 1.
Adding protection diodes reduces the analog signal
range to a diode drop (about 0.7V) below V+ for D1,
and a diode drop above V- for D2. Leakage is not
affected by adding the diodes. On-resistance increas-
es by a small amount at low supply voltages. Maximum
supply voltage (V- to V+) must not exceed 17V.
Adding protection diode D1 causes the logic thresh-
olds to be shifted relative to the positive power-supply
rail. This can be significant when low positive supply
voltages (+5V or less) are used. Driving IN1 and IN2 all
the way to the supply rails (i.e., to a diode drop higher
than the V+ pin or a diode drop lower than the V- pin) is
always acceptable.
The protection diodes D1 and D2 also protect against
some overvoltage situations. With the circuit of Figure 1,
if the supply voltage is below the absolute maximum
rating and if a fault voltage up to the absolute maximum
rating is applied to an analog signal pin, no damage
will result. For example, with ±5V supplies, analog sig-
nals up to ±8.5V will not damage the circuit of Figure 1.
If only a single fault signal is present, the fault voltage
can rise to +12V or to -12V without damage.
_____________________Pin Description
POSITIVE SUPPLY
COM
D1
D2
NO
V-
Vg
V+
NEGATIVE SUPPLY
MAX320
MAX321
MAX322
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
5
Normally Closed Analog
Switch Terminal
NC2
(MAX321/MAX322)
Normally Open Analog
Switch Terminal
NO2
(MAX320)
Negative Supply
V-
4
Logic Inputs
IN2, IN1
3, 7
PIN
Analog Switch Common
Terminals
COM1, COM2
2, 6
Normally Closed Analog
Switch Terminal
NC1
(MAX321)
Normally Open Analog
Switch Terminal
NO1
(MAX320/MAX322)
1
FUNCTION
NAME
Positive Supply
V+
8
相关PDF资料 |
PDF描述 |
|---|---|
| MAX3212EAI+T | IC TXRX 3DRVR 5RX 28-SSOP |
| MAX3218CPP+ | IC TXRS RS-232 W/SHTDWN 20-DIP |
| MAX3221ECDB | IC RS232 3V-5.5V DRVR 16-SSOP |
| MAX3223EAP | IC TXRX RS232 120KBPS SD 20-SSOP |
| MAX3225EEUP | IC TXRX RS232 1MBPS SD 20-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX320EUA+ | 功能描述:模拟开关 IC Precision Dual Supply SPST RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX320EUA+T | 功能描述:模拟开关 IC Precision Dual Supply SPST RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX320EUA-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX320MJA | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX3212CAI | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
发布紧急采购，3分钟左右您将得到回复。