OP470GSZ-REEL - Quad Low-Noise 6MHz Op Amp | Analog Devices
料号： OP470GSZ-REEL ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $17.08 | $17.08 |
| 10 | $15.2 | $152.00 |
| 100 | $12.85 | $1,285.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $10.1 | $10,100.00 |
OP470GSZ-REEL 概述
A quad operational amplifier integrates four independent, internally-compensated op amps on a single silicon die. Belonging to the linear IC family (operational amplifiers -> amplifiers -> analog ICs -> integrated circuits), the quad topology is the standard building block for signal conditioning stages that need matched channels - instrumentation buffers, active filters, multi-channel ADC front-ends, and audio pre-amplifiers - while saving board area versus four discrete op amps.
Key features include 0.4 mV maximum input offset voltage, 2 µV/°C maximum offset voltage drift, 1000 V/mV minimum open-loop gain, 110 dB outstanding common-mode rejection, and four channels of low-noise amplification per package. The OP470 conforms to the industry-standard 14-pin DIP quad pinout and is pin-compatible with OP11, LM148/149, HA4741, HA5104, and RM4156 quad op amps, allowing drop-in upgrades of legacy designs.
The internal architecture uses bipolar junction transistor (BJT) input stages that yield 5 nV/√Hz spectral noise density and stable unity-gain behavior without external compensation capacitors. The very-high open-loop gain (1000 V/mV min) and 110 dB CMRR translate into excellent DC accuracy and rejection of power-supply common-mode noise, making the OP470 well-suited for precision instrumentation and professional audio front-ends.
Typical applications include high-quality audio pre-amplifiers and mixing consoles, precision instrumentation amplifiers, multi-pole active filters, industrial process control signal chains, and ADC driver stages that demand low noise and low offset simultaneously.
When designing with the OP470, ensure input common-mode voltage stays within the supply rails, allow adequate PCB ground-plane area near the exposed paddle region, and place 100 nF ceramic supply-bypass capacitors within 5 mm of each supply pin. For lowest offset, use the offset-null pins or select the OP470FY/OP470GP grades that are pre-trimmed.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes beyond the manufacturer datasheet.
直接替换替代料： OP470GSZ-REEL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： OP470GSZ-REEL （相同外形与封装尺寸） ——差异在于 Amplifier Type, Input Voltage Noise Density, Operating Temperature Range, Packaging.
快速对比工具——选择替代料号进行并排对比：
OP470GSZ
✅ 直接替换✓ 有现货
$8.94 / 个
查看数据手册 →OP470EY
✅ 直接替换📋 参考替代料（不在目录中）
OP470GP
✅ 直接替换📋 参考替代料（不在目录中）
OP470HS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
OP470NZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
OPA4227PA
✅ 直接替换📋 参考替代料（不在目录中）
OPA4134PA
✅ 直接替换📋 参考替代料（不在目录中）
OP470GSZ-REEL 最大额定值与电气特性
| Number of Channels | 4 |
| Amplifier Type | General Purpose / Low Noise |
| Input Voltage Noise Density | 5 nV/√Hz (max at 1 kHz) |
| Input Offset Voltage | 0.4 mV (max) |
| Input Offset Voltage Drift | 2 µV/°C (max) |
| Gain-Bandwidth Product | 6 MHz |
| Slew Rate | 2 V/µs |
| Open-Loop Gain | 1000 V/mV (min) |
| Common-Mode Rejection Ratio | 110 dB |
| Supply Voltage Range (Dual) | ±4.5 V to ±18 V |
| 工作温度范围 | -40 °C to +85 °C (industrial grade) |
| 封装 | 16-SOIC (0.295", 7.50 mm width) |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (TR) |
| MSL 等级 | 1 (unlimited) |
| RoHS 状态 | Compliant |
| Pin Compatibility | OP11, LM148/149, HA4741, HA5104, RM4156 (industry-standard quad pinout) |
OP470GSZ-REEL 引脚配置
| 引脚 1 | NULL_A — Offset null for channel A (left floating or connect to 10 kΩ trim pot to V-) |
| 引脚 2 | INA- — Inverting input of channel A |
| 引脚 3 | INA+ — Non-inverting input of channel A |
| 引脚 4 | V- — Negative supply voltage (typically -15 V) |
| 引脚 5 | INB+ — Non-inverting input of channel B |
| 引脚 6 | INB- — Inverting input of channel B |
| 引脚 7 | OUTB — Output of channel B |
| 引脚 8 | OUTC — Output of channel C |
| 引脚 9 | INC- — Inverting input of channel C |
| 引脚 10 | INC+ — Non-inverting input of channel C |
| 引脚 11 | V+ — Positive supply voltage (typically +15 V) |
| 引脚 12 | IND+ — Non-inverting input of channel D |
| 引脚 13 | IND- — Inverting input of channel D |
| 引脚 14 | OUTD — Output of channel D |
| 引脚 15 | OUTA — Output of channel A |
| 引脚 16 | NULL_D — Offset null for channel D (optional trim) |
典型应用
OP470GSZ-REEL 适用于 6 应用s: High-Quality Audio Preamplifier, Precision Instrumentation Front-End, Multi-Pole Active Filter, ADC Driver / Input Buffer, Industrial Process-Control Signal Chain, Servo and Motor-Control Amplifier.
High-Quality Audio Preamplifier
The OP470GSZ-REEL's 5 nV/√Hz input voltage noise floor directly sets the noise floor of audio preamplifiers, while its 0.4 mV maximum input offset voltage preserves the DC bias accuracy required to drive downstream ADC stages without introducing audible clicks on power-up. With four matched channels per package and 6 MHz gain-bandwidth product, it cleanly amplifies microphone, line, and instrument-level signals in mixing consoles and high-fidelity home-audio equipment. The 110 dB CMRR rejects power-supply hum from ±15 V studio rails. Unlike FET-input audio op amps, the bipolar input stage delivers a more musical distortion profile and lower 1/f noise corner - both valued in pro-audio circuit design where every nanovolt of preamp noise is audible at the loudspeaker.
推荐
Precision Instrumentation Front-End
The OP470GSZ-REEL integrates four low-noise, low-offset op amps on a single die, making it ideal for the active signal conditioning stages of multi-channel data-acquisition systems, thermocouple and bridge sensor front-ends, and ECG/EEG analog input boards. Each channel's 0.4 mV max offset and 2 µV/°C drift keep measurement error well below the resolution of the downstream 16-bit or 18-bit ADC. The 6 MHz GBW preserves high-frequency transients from piezoelectric and strain-gauge sensors, while the ±18 V supply compatibility allows direct interface to ±15 V industrial rails. Matched channels eliminate gain mismatch across inputs - critical when calibration assumes identical transfer functions per channel.
推荐
Multi-Pole Active Filter
Active filter networks - Sallen-Key, multiple-feedback, and state-variable topologies - benefit from the OP470GSZ-REEL's combination of 6 MHz GBW and 2 V/µs slew rate, which together support filter cutoffs up to several hundred kHz without introducing excess phase shift at the corner frequency. The four channels per package enable one IC to implement a complete 4th-order low-pass or band-pass filter, replacing two dual-op-amp packages and saving PCB area in industrial process-control and audio crossover applications. The 1000 V/mV minimum DC gain keeps low-frequency passband ripple below 0.01% for instrumentation-grade filters.
推荐
ADC Driver / Input Buffer
Driving 16-bit and 18-bit ADCs requires an op amp with sufficient open-loop gain at the Nyquist frequency, low output impedance, and fast settling - all provided by the OP470GSZ-REEL's 6 MHz GBW, 2 V/µs slew rate, and 1000 V/mV minimum DC gain. In addition to buffering, the four channels allow simultaneous sampling of multiple sensor channels with consistent dynamic performance - the same GBW on every channel preserves matched phase delay, critical for coherent sampling in phased-array ultrasound and multi-axis vibration analyzers. The 110 dB CMRR rejects common-mode noise on long sensor cables.
推荐
Industrial Process-Control Signal Chain
In industrial PLCs, RTD signal conditioners, and 4-20 mA current-loop transmitters, the OP470GSZ-REEL amplifies low-level sensor signals in noisy ±18 V supply environments. Its 110 dB CMRR withstands the large common-mode transients typical of motor-drive and solenoid-switched systems, while the 5 nV/√Hz noise floor preserves the resolution of 16-bit industrial ADCs across the full -40 °C to +85 °C operating range. Four matched channels per package provide an economical solution for multi-axis control loops where channel-to-channel gain matching must be better than 0.1% to meet calibration accuracy requirements.
推荐
Servo and Motor-Control Amplifier
The OP470GSZ-REEL is widely used in the error-amplifier, current-sense, and feedback paths of DC and brushless motor control loops. The 6 MHz GBW supports current-loop bandwidths up to several hundred kHz - required for fast torque response in CNC spindles, robotics actuators, and drone ESCs. Each of the four channels can serve a separate axis of a multi-axis motion-control board, with consistent bandwidth and phase response ensuring simultaneous, matched servo response. The OP470's high common-mode rejection also rejects the large switching transients injected by adjacent PWM stages when sharing a noisy ±18 V or +36 V supply rail.
推荐
推荐产品汇总
工程参考数据： OP470GSZ-REEL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | OP470GSZ | OP470EY | OP470GP | OP4227PA | OPA4134PA |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments |
| Package | 16-SOIC (0.295") | 16-SOIC (0.295") - same | 16-SOIC (0.295") - same | 16-SOIC (0.295") - same | 16-SOIC (0.295") - same | 16-SOIC (0.295") - same |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | |
| Input Voltage Noise Density (nV/√Hz) | 5 | 5 | 5 | 15 | 25 | |
| Gain-Bandwidth Product | 6 MHz | 6 MHz | 6 MHz | 8 MHz | 8 MHz | |
| Slew Rate | 2 V/µs | 2 V/µs | 2 V/µs | 2 V/µs | 20 V/µs | |
| Input Offset Voltage (max) | 0.4 mV | 0.4 mV | 0.4 mV | 0.1 mV (tighter) | 2.0 mV (looser) | |
| CMRR (min) | 110 dB | 110 dB | 110 dB | 120 dB (better) | 100 dB (worse) | |
| Supply Voltage Range (Dual) | ±4.5 V to ±18 V | ±4.5 V to ±18 V | ±4.5 V to ±18 V | ±2.5 V to ±18 V | ±2.5 V to ±18 V | |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | 0 °C to +70 °C | -40 °C to +85 °C |
关键差异点
- Lowest input voltage noise among classic bipolar quad op amps （对比 OPA4134PA (TI))
- Tighter offset voltage specification （对比 OPA4134PA (TI))
- Industry-standard quad op amp pin compatibility （对比 Generic quad op amp in different pinout)
- Broad ±4.5 V to ±18 V supply range for industrial compatibility （对比 OPA4227PA (TI, ±2.5 V min))
设计说明
Place a 100 nF ceramic bypass capacitor within 5 mm of each OP470GSZ-REEL supply pin (V+ pin 11 and V- pin 4); add a 10 µF tantalum or aluminum polymer bulk capacitor at the supply entry to the board. Star-ground the analog ground and the power ground at a single point near the OP470 to prevent ground-loop currents from coupling into the input stage. Estimated: at ±15 V supplies and a 25 mW per-channel dissipation, the 16-SOIC reaches approximately 6 °C rise above ambient on a 2 oz copper 4-layer board - well within the 125 °C absolute junction.
Keep input trace lengths balanced and short - both inverting and non-inverting inputs of each channel should have matched trace impedance and length to minimize offset drift from thermoelectric EMFs. Guard the input traces with a grounded copper pour on the same layer to shield against adjacent digital signals; for best CMRR, drive the shield with a low-impedance buffered version of the common-mode voltage. Avoid running the SOIC-16 output traces in parallel for more than 5 mm to prevent channel-to-channel crosstalk from exceeding 110 dB isolation.
Do not operate the OP470GSZ-REEL above ±18 V (36 V total) - the absolute-maximum supply is ±22 V and stress above ±18 V degrades long-term reliability. Do not drive the input common-mode range beyond V+ -1.5 V or below V- +1.5 V; doing so activates input-protection diodes and injects current into the substrate. Avoid operating the part unloaded for extended periods in high-gain configurations - insert a 10 kΩ feedback resistor to define the DC operating point when no input source is present.
For active-filter applications, route output and feedback traces on opposite sides of the PCB or in separate ground islands to minimize parasitic feedback capacitance, which can degrade the 6 MHz GBW into a 4 MHz effective bandwidth. Use surface-mount metal-film or thin-film 0.1% feedback resistors to preserve the OP470's low-noise advantage; carbon-composition or thick-film resistors add 5-15 nV/√Hz of Johnson noise that masks the part's 5 nV/√Hz floor at low source impedances.
合规信息
RoHS compliant (Pb-free matte-tin finish) per Analog Devices product page. MSL Level 1 (unlimited floor life) supports standard SMT reflow up to 260 °C peak. Not AEC-Q100 qualified - for automotive electronics select ADI's AEC-Q100-qualified precision op amp families instead.
