ZHCSGB7A June   2017  – November 2017 OPA1641-Q1 , OPA1642-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化内部原理图
      2.      极为稳定的输入电容
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: OPA1641-Q1
    2.     Pin Functions: OPA1642-Q1
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Phase Reversal Protection
      2. 7.3.2 Output Current Limit
      3. 7.3.3 EMI Rejection Ratio (EMIRR)
        1. 7.3.3.1 EMIRR IN+ Test Configuration
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Voltage
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Total Harmonic Distortion Measurements
      2. 8.1.2 Source Impedance and Distortion
      3. 8.1.3 Capacitive Load and Stability
      4. 8.1.4 Power Dissipation and Thermal Protection
      5. 8.1.5 Electrical Overstress
    2. 8.2 Typical Application
      1. 8.2.1 Single-Supply Electret Microphone Preamplifier for Speech
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 TINA-TI（免费软件下载）
        2. 11.1.1.2 TI 高精度设计
        3. 11.1.1.3 WEBENCH® 滤波器设计器
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 相关链接
    4. 11.4 接收文档更新通知
    5. 11.5 社区资源
    6. 11.6 商标
    7. 11.7 静电放电警告
    8. 11.8 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

at TA = 25°C, VS = 4.5 V to 36 (±2.25 V to ±18 V), RL = 2 kΩ connected to midsupply, and VCM = VOUT = midsupply (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
AUDIO PERFORMANCE
THD+N Total harmonic distortion + noise G = 1, f = 1 kHz, VO = 3 VRMS 0.00005%
–126 dB
IMD Intermodulation distortion SMPTE/DIN two-tone, 4:1
(60 Hz and 7 kHz), G = 1,
VO = 3 VRMS		 0.00004%
–128 dB
DIM 30 (3-kHz square wave and
15-kHz sine wave), G = 1,
VO = 3 VRMS		 0.00008%
–122 dB
CCIF twin-tone
(19 kHz and 20 kHz), G = 1,
VO = 3 VRMS		 0.00007%
–123 dB
FREQUENCY RESPONSE
GBW Gain-bandwidth product G = 1 11 MHz
SR Slew rate G = 1 20 V/μs
Full-power bandwidth(1) VO = 1 VP 3.2 MHz
Overload recovery time(2) G = –10 600 ns
Channel separation (dual and quad) f = 1 kHz –126 dB
NOISE
Input voltage noise f = 20 Hz to 20 kHz 4.3 μVPP
en Input voltage noise density f = 10 Hz 8 nV/√Hz
f = 100 Hz 5.8
f = 1 kHz 5.1
In Input current noise density f = 1 kHz 0.8 fA/√Hz
OFFSET VOLTAGE
VOS Input offset voltage VS = ±18 V 1 3.5 mV
PSRR VOS vs power supply VS = ±2.25 V to ±18 V 0.14 2 μV/V
INPUT BIAS CURRENT
IB Input bias current VCM = 0 V ±2 ±20 pA
IOS Input offset current VCM = 0 V ±2 ±20 pA
INPUT VOLTAGE RANGE
VCM Common-mode voltage range (V–) – 0.1 (V+) – 3.5 V
CMRR Common-mode rejection ratio VCM = (V–) – 0.1 V to (V+) – 3.5 V,
VS = ±18 V		 120 126 dB
INPUT IMPEDANCE
Differential 1013 || 8 Ω || pF
Common-mode VCM = (V–) – 0.1 V to (V+) – 3.5 V 1013 || 6 Ω || pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain OPA1641-Q1:
(V–) + 0.2 V ≤ VO ≤ (V+) – 0.2 V,
RL = 10 kΩ		 120 134 dB
OPA1641-Q1:
(V–) + 0.35 V ≤ VO ≤ (V+) – 0.35 V,
RL = 2 kΩ		 114 126
OPA1642-Q1:
(V–) + 0.2 V ≤ VO ≤ (V+) – 0.2 V,
RL = 10 kΩ		 114 134
OPA1642-Q1:
(V–) + 0.35 V ≤ VO ≤ (V+) – 0.35 V,
RL = 2 kΩ		 111 126
OUTPUT
VO Voltage output swing from rail RL = 10 kΩ,
AOL ≥ 120 dB (OPA1641-Q1)
AOL ≥ 114 dB (OPA1642-Q1)		 (V–) + 0.2 (V+) – 0.2 V
RL = 2 kΩ,
AOL ≥ 114 dB (OPA1641-Q1)
AOL ≥ 111 dB (OPA1642-Q1)		 (V–) + 0.35 (V+) – 0.35
IOUT Output current See Typical Characteristics
ZO Open-loop output impedance See Typical Characteristics
ISC Short-circuit current Source 36 mA
Sink –30
CLOAD Capacitive load drive See Typical Characteristics
POWER SUPPLY
VS Specified voltage ±2.25 ±18 V
IQ Quiescent current (per amplifier) IOUT = 0 A 1.8 2.3 mA
TEMPERATURE RANGE
Specified range –40 125 °C
Operating range –55 125 °C
(1) Full power bandwidth = SR / (2π × VP), where SR = slew rate.
(2) See Figure 19 and Figure 20.