参数资料
| 型号： | ISL28218SOICEVAL1Z |
| 厂商： | Intersil |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ISL28218 8SOIC |
| 产品培训模块： | Solutions for Test and Measurement Equipment Solutions for Industrial Control Applications |
| 标准包装： | 1 |
| 每 IC 通道数： | 2 - 双 |
| 放大器类型： | 通用 |
| 输出类型： | 满摆幅 |
| 转换速率： | 1.2 V/µs |
| 电流 - 输出 / 通道： | 28mA |
| 工作温度： | -40°C ~ 125°C |
| 电流供应（主 IC）： | 850µA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 40 V，±1.5 V ~ 20 V |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL28218 |
Application Note 1595
ISL28218SOICEVAL1Z Evaluation Board User’s Guide
Introduction
The ISL28218SOICEVAL1Z evaluation board is designed to
evaluate the performance of the ISL28218 40V Precision
Low Power Operational Amplifier. The ISL28218 is a single
supply rail-to-rail output, dual amplifier with ground sensing
inputs that allow the common mode input voltage to swing
0.5V below the V- rail. The ISL28218 can operate from a
single or dual supply with a 3V to 40V supply range. The
ISL28218 features very low power, low offset voltage and
low temperature drift making them ideal for applications for
precision medical and instrumentation, current sensing and
power supply and industrial process controls.
Reference Documents
? ISL28218 Datasheet, FN7532
Evaluation Board Key Features
? Single Supply Operation: +3V to +40V
Power Supplies (Figure 1)
External power connections are made through the V+,
V-, VREF, and GND connections on the evaluation board.
The circuit can operate from a single supply or from dual
supplies. For single supply operation, the V- and GND
pins are tied together to the negative or ground
reference of the power supply. For split supplies, V+ and
V- terminals connect to their respective supply terminals.
De-coupling capacitors C2 and C4 provide low-frequency
power-supply filtering, while additional capacitors, C3
and C5, which are connected close to the part, filter out
high frequency noise. Anti-reverse diode D1 (optional)
protects the circuit in the momentary case of accidentally
reversing the power supplies to the evaluation board.
The VREF pin can be connected to ground to establish a
ground referenced input for split supply operation, or can
be externally set to any reference level for single supply
operation.
? Dual Supply Operation: ±1.5V to ±20V
? Singled-Ended or Differential Input Operation
? External VREF input
3
2
V-
3
2
V+
VREF
? Banana Jack Connectors for Power Supply and VREF
Inputs
? BNC Connectors for Op Amp Input and Output
Terminals
? Convenient PCB pads for Op Amp Input/Output
impedance loading.
C2
1μF
D1
CLOSE TO DUT
C3 C5
C4
1μF
0.01μF 0.01μF
FIGURE 1. POWER SUPPLY CIRCUIT
R13/R23
LOAD
R SENSE
R11/R24
10k Ω
R14/R21
INA- 2
INB- 6
INA+ 3
INB+ 5
100k Ω
8
-
V+
ISL28218
V-
+
+3V TO 40V
1/7
V OUT
10k Ω
4
GAIN = 10V/V
R18/R19
100k Ω
V REF
FIGURE 2. CURRENT SENSE AMPLIFIER
October 27, 2010
AN1595.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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