ZHCSMN4 February 2021 OPA858-Q1
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
7 Parameter Measurement Information
The various test setup configurations for the OPA858-Q1 are shown in Figure 7-1, Figure 7-2, and Figure 7-3. When configuring the OPA858-Q1 in a gain of +39.2 V/V, feedback resistor RF was set to 953 Ω.
Figure 6-1 shows 5-dB of peaking with the amplifier in an inverting configuration of –7 V/V with the amplifier configured as shown in Figure 7-2. The 50-Ω matched termination of this circuit configuration results in the amplifier being configured in a noise gain of 5.3 V/V, which is lower than the recommended +7 V/V.
Figure 7-1 Noninverting Configuration
Figure 7-2 Inverting Configuration (Gain = –7 V/V)
Figure 7-3 Capacitive Load Driver Configuration