ZHCSGP3D September   2017  – December 2018 OPA2837 , OPA837

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
    1.     具有真正接地输入和输出范围的低功耗、低噪声、精密单端 SAR ADC 驱动器
  3. 3 说明
    1.     Device Images
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  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: OPA837
    5. 6.5  Thermal Information: OPA2837
    6. 6.6  Electrical Characteristics: VS = 5 V
    7. 6.7  Electrical Characteristics: VS = 3 V
    8. 6.8  Typical Characteristics: VS = 5.0 V
    9. 6.9  Typical Characteristics: VS = 3.0 V
    10. 6.10 Typical Characteristics: ±2.5-V to ±1.5-V Split Supply
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 OPA837 Comparison
      2. 7.3.2 Input Common-Mode Voltage Range
      3. 7.3.3 Output Voltage Range
      4. 7.3.4 Power-Down Operation
      5. 7.3.5 Low-Power Applications and the Effects of Resistor Values on Bandwidth
      6. 7.3.6 Driving Capacitive Loads
    4. 7.4 Device Functional Modes
      1. 7.4.1 Split-Supply Operation (±1.35 V to ±2.7 V)
      2. 7.4.2 Single-Supply Operation (2.7 V to 5.4 V)
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Noninverting Amplifier
      2. 8.1.2  Inverting Amplifier
      3. 8.1.3  Output DC Error Calculations
      4. 8.1.4  Output Noise Calculations
      5. 8.1.5  Instrumentation Amplifier
      6. 8.1.6  Attenuators
      7. 8.1.7  Differential to Single-Ended Amplifier
      8. 8.1.8  Differential-to-Differential Amplifier
      9. 8.1.9  Pulse Application With Single-Supply Circuit
      10. 8.1.10 ADC Driver Performance
    2. 8.2 Typical Applications
      1. 8.2.1 Active Filters
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Implementing a 2:1 Active Multiplexer
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
      3. 8.2.3 1-Bit PGA Operation
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
  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 文档支持
      1. 11.1.1 相关文档
    2. 11.2 相关链接
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 术语表
  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

6.7 Electrical Characteristics: VS = 3 V

at VS+ = 3 V, VS– = 0 V, RF = 0 Ω, RL = 2 kΩ, G = 1 V/V, input and output referenced to mid-supply, and TA ≈ 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TEST LEVEL(1)
AC PERFORMANCE
SSBW Small-signal bandwidth  VOUT = 20 mVPP, G = 1 85 105 MHz C
VOUT = 20 mVPP, G = 2 45 C
VOUT = 20 mVPP, G = 10 5 C
GBP Gain-bandwidth product VOUT = 20 mVPP, G = 10 40 50 MHz C
LSBW Large-signal bandwidth VOUT = 1 VPP, G = 2 30 MHz C
Bandwidth for 0.1-dB flatness VOUT = 200 mVPP, G = 2 6 MHz C
SR Slew rate From LSBW(1) 65 V/µs C
tR, tF Rise, fall time VOUT = 0.5-V step, G = 2, input tR = 10 ns 10 11 ns C
Overshoot VOUT = 2-V step, G = 2, input tR = 40 ns 7% C
Settling time to 0.1% VOUT = 0.5-V step, G = 1, input tR = 4 ns 35 ns C
Settling time to 0.01% VOUT = 0.5-V step, G = 1, input tR = 4 ns 50 ns C
HD2 Second-order harmonic distortion f = 100 kHz, VO = 1 VPP, G = 1 (see Figure 73) –125 dBc C
HD3 Third-order harmonic distortion f = 100 kHz, VO = 1 VPP, G = 1 (see Figure 73) –138 dBc C
Input voltage noise f = 500 Hz 4.9 nV/√Hz C
Voltage noise 1/f corner frequency See Figure 39 35 Hz C
Input current noise f = 10 kHz 0.4 pA/√Hz C
Current noise 1/f corner frequency See Figure 39 5 kHz C
Overdrive recovery time G = 2, 2x output overdrive (see Figure 29) 65 ns C
Closed-loop output impedance f = 1 MHz, G = 1 (see Figure 38) 0.14 Ω C
Channel-to-channel crosstalk (OPA2837) f = 10 kHz -126 dBc C
DC PERFORMANCE
AOL Open-loop voltage gain VO = ±1 V, RL = 2 kΩ 120 133 dB A
VO = ±1 V, RL = 2 kΩ (OPA2837) 110 133 A
Input-referred offset voltage TA ≈ 25°C –165 ±30 165 µV A
TA = 0°C to +70°C –205 ±30 235 B
TA = –40°C to +85°C –269 ±30 261 B
TA = –40°C to +125°C –269 ±30 325 B
Input offset voltage drift(4) DCK package, TA = –40°C to +125°C –1.6 ±0.4 1.6 µV/°C B
DBV, RUN package, TA = –40°C to +125°C –2.0 ±0.4 2.0 B
DGK package, TA = –40°C to +125°C ±0.67 B
Input bias current(3) TA ≈ 25°C 145 320 510 nA A
TA = 0°C to +70°C 50 320 659 B
TA = –40°C to +85°C 50 320 708 B
TA = –40°C to +125°C 50 320 840 B
Input bias current drift(4) TA = –40°C to +125°C 0.8 1.5 3.3 nA/°C B
Input offset current TA ≈ 25°C (OPA837) –40 ±6 40 nA A
TA = 0°C to +70°C –46 ±6 52 B
TA = –40°C to +85°C –56 ±6 55 B
TA = –40°C to +125°C –56 ±6 65 B
TA ≈ 25°C (OPA2837) –60 ±8 60 A
Input offset current drift(4) TA = –40°C to +125°C –250 ±40 250 pA/°C B
TA = –40°C to +125°C (OPA2837) –250 ±80 330 B
Input-referred offset voltage mismatch TA ≈ 25°C (OPA2837) -220 50 220 µV A
INPUT
Common-mode input range, low TA ≈ 25°C, < 3-dB degradation in CMRR limit  –0.2 0 V A
TA = –40°C to +125°C, < 3-dB degradation in CMRR limit –0.2 0 B
Common-mode input range, high TA ≈ 25°C, < 3-dB degradation in CMRR limit  1.7 1.8 V A
TA = –40°C to +125°C, < 3-dB degradation in CMRR limit 1.7 1.8 B
CMRR Common-mode rejection ratio 90 105 dB A
Input impedance common-mode 300 || 1.5 MΩ || pF C
Input impedance differential mode 180 || 0.5 kΩ || pF C
OUTPUT
VOL Output voltage, low TA ≈ 25°C, G = 2 0.05 0.1 V A
TA = –40°C to +125°C, G = 2 0.10 0.2 B
VOH Output voltage, high  TA ≈ 25°C, G = 2 2.9 2.95 V A
TA = –40°C to +125°C, G = 2 2.8 2.9 B
Maximum current into a resistive load TA ≈ 25°C, ±0.8 V into 17.5 Ω, VIO < 2 mV ±45 ±55 mA A
Linear current into a resistive load TA ≈ 25°C, ±0.9 V into 21.5 Ω, AOL > 80 dB ±40 ±45 mA A
Linear current into a resistive load overtemperature TA = –40°C to 125°C, ±0.7 V into 21.5 Ω, AOL > 80 dB ±32 ±40 mA C
POWER SUPPLY
Specified operating voltage 2.7 5.4 V B
Quiescent operating current per amplifier (OPA837, 3-V supply) TA ≈ 25°C(2) 547 570 607 µA A
TA = –40°C to +125°C 404 570 817 B
Quiescent operating current per amplifier (OPA2837, 3-V supply) TA ≈ 25°C(2) 540 570 607 µA A
Supply current temperature coefficient per amplifier TA = –40°C to +125°C (see Figure 57) 0.8 1.7 2.2 µA/°C B
+PSRR Positive power-supply rejection ratio 90 110 dB A
–PSRR Negative power-supply rejection ratio 88 105 dB A
POWER DOWN (Pin Must be Driven)
Enable voltage threshold Specified on above VS– + 1.5 V 1.5 V A
Disable voltage threshold Specified off below VS– + 0.55 V 0.55 V A
Power-down pin bias current PD = 0 V to VS+ –50 50 nA A
Power-down quiescent current PD ≤ 0.55 V 1 3 8 µA A
Power-down quiescent current over temperature PD ≤ 0.55 V, TA = –40°C to +125°C 8 µA B
Turnon time delay Time from PD = high to VOUT = 90% of final value 300 ns C
Turnoff time delay Time from PD = low to VOUT = 10% of original value 100 ns C
(1) This slew rate is the average of the rising and falling time estimated from the large-signal bandwidth as: (0.8 x VPEAK / √2) × 2π × f–3dB where this f-3dB is the typical measured 2-Vpp bandwidth at gains of 1V/V.
(2) The typical spec is at 25oC Tj. The min, max limits are expanded for ATE to account for ambient range from 22oC to 32oC with a +4-uA/oC temperature coefficient on the supply current.
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