ADA4807-1AKSZ-RL7 - 180MHz, 3.1nV/√Hz RRIO Op Amp | Analog Devices
MPN: ADA4807-1AKSZ-RL7 ✓ פעילADA4807-1AKSZ-RL7 סקירה
An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog signal conditioning, used to amplify, filter, or buffer signals. The ADA4807-1 belongs to the family of voltage feedback amplifiers, which are characterized by their ease of use, stable operation, and wide bandwidth. Within the hierarchy of analog ICs, it sits under linear amplifiers, which are essential in precision measurement, audio, and communication systems.
Key features include an input voltage noise density of 3.1 nV/√Hz and current noise of 0.7 pA/√Hz, which are among the lowest for high-speed RRIO amplifiers. The rail-to-rail input and output capability allows maximum dynamic range on low supply voltages, and the amplifier operates from a single 2.7 V to 5 V supply or dual ±1.35 V to ±2.5 V supplies. The disable pin (available on the SC-70-6 package) places the output in a high-impedance state, reducing quiescent current to near zero for power saving.
Technically, the ADA4807-1 uses a complementary bipolar process that achieves low distortion and high slew rate (225 V/µs) while maintaining low power. The amplifier is unity-gain stable and provides a phase margin of 60°, ensuring reliable operation in buffer configurations. Its output can swing within 50 mV of the rails, and the input common-mode range extends beyond the supplies, simplifying single-supply designs.
Typical applications include portable instrumentation, battery-powered audio, active filters, ADC drivers, and photodiode amplification. The low noise and high bandwidth make it suitable for medical devices, industrial sensors, and communication receivers where signal integrity is critical.
When designing with this amplifier, ensure proper decoupling of the supply pins with 0.1 µF ceramic capacitors placed close to the device. The disable pin should be tied to the positive supply if not used, to avoid accidental shutdown. For optimal noise performance, use metal-film resistors in the feedback network and keep the feedback loop short to minimize parasitic capacitance.
חלופות תחליף ישיר עבור ADA4807-1AKSZ-RL7 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם ADA4807-1AKSZ-RL7 (אותו גורם צורה וטביעת רגל) — שונים ב Package / Case, Voltage - Supply Span (Max), Amplifier Type, Current - Supply, Gain Bandwidth Product.
ADA4807-1AKSZ-R7
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ADA4807-1AKSZ-R2
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ADA4805-1AKSZ-RL7
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ADA4805-1AKSZ
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←OPA836
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
LMH6643
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
ADA4807-1AKSZ-RL7 דירוגים מרביים ומאפיינים חשמליים
| Amplifier Type | Voltage Feedback |
| Number of Circuits | 1 |
| סוג פלט | Rail-to-Rail |
| Slew Rate | 225 V/µs |
| Gain Bandwidth Product | 180 MHz |
| -3dB Bandwidth | 180 MHz |
| Current - Input Bias | 0.7 pA/√Hz (noise current density) |
| Voltage - Input Offset | 50 µV (typical) |
| Current - Supply | 1 mA |
| Current - Output / Channel | 60 mA |
| Voltage - Supply Span (Min) | 2.7 V |
| Voltage - Supply Span (Max) | 5 V |
| טמפרטורת פעולה | -40°C to +125°C |
| מארז / Case | 6-TSSOP, SC-88, SOT-363 |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של ADA4807-1AKSZ-RL7
| פין 1 | OUT — Amplifier output |
| פין 2 | GND — Ground (negative supply) |
| פין 3 | IN+ — Non-inverting input |
| פין 4 | IN- — Inverting input |
| פין 5 | V+ — Positive supply |
| פין 6 | DIS — Disable (active low) |
יישומים טיפוסיים
ADA4807-1AKSZ-RL7 מתאים עבור 6 יישוםs: Portable Instrumentation, Battery-Powered Audio, Active Filters, ADC Driver, Photodiode Amplifier, Industrial Sensor Interface.
Portable Instrumentation
The ADA4807-1AKSZ-RL7's low power (1 mA) and low noise (3.1 nV/√Hz) make it ideal for battery-powered multimeters, data loggers, and handheld test equipment. Its rail-to-rail output maximizes dynamic range on 3.3 V supplies, and the small SC-70 package saves board space. The high bandwidth (180 MHz) ensures accurate amplification of fast transient signals, while the disable pin allows power saving between measurements.
מומלץ
Battery-Powered Audio
With a quiescent current of only 1 mA and a supply range down to 2.7 V, the ADA4807-1AKSZ-RL7 is well-suited for portable audio devices such as MP3 players, smartphones, and hearing aids. Its low noise (3.1 nV/√Hz) ensures a clean audio signal, and the rail-to-rail output allows maximum headroom on low voltages. The 180 MHz bandwidth supports high-quality audio processing without slew-rate limiting.
מומלץ
Active Filters
The ADA4807-1AKSZ-RL7's high gain bandwidth product (180 MHz) and low distortion make it an excellent choice for active filters in communication and instrumentation systems. It can implement Butterworth, Chebyshev, or Bessel filters with cutoff frequencies up to tens of MHz. The rail-to-rail input/output allows full-scale signal processing on low supplies, and the low noise ensures high signal-to-noise ratio in the passband.
מומלץ
ADC Driver
The ADA4807-1AKSZ-RL7 can drive high-speed ADCs with its 60 mA output current and 180 MHz bandwidth. Its low noise and low distortion preserve signal integrity, while the rail-to-rail output maximizes the ADC's dynamic range. The disable pin allows power saving when the ADC is idle. It is suitable for driving 12-bit ADCs with sampling rates up to 100 MSPS.
מומלץ
Photodiode Amplifier
The ADA4807-1AKSZ-RL7's low current noise (0.7 pA/√Hz) and low voltage noise (3.1 nV/√Hz) make it ideal for transimpedance amplifiers used in optical sensors, LIDAR, and medical diagnostics. The high bandwidth (180 MHz) allows fast pulse detection, and the low input bias current minimizes DC offset. The rail-to-rail output provides wide dynamic range for varying light levels.
מומלץ
Industrial Sensor Interface
In industrial environments, the ADA4807-1AKSZ-RL7 can condition signals from temperature, pressure, and strain sensors. Its wide operating temperature range (-40°C to +125°C) and low power make it suitable for remote sensors. The rail-to-rail input allows direct interface with sensors that output near the supply rails, and the high bandwidth supports fast data acquisition.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור ADA4807-1AKSZ-RL7 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | ADA4807-1AKSZ-R7 | ADA4805-1AKSZ-RL7 | OPA836 |
|---|---|---|---|---|
| Package | SC-70-6 | SC-70-6 | SC-70-6 | SC-70-6 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Gain Bandwidth Product | 180 MHz | 180 MHz | 105 MHz | 205 MHz |
| Input Voltage Noise | 3.1 nV/√Hz | 3.1 nV/√Hz | 4.6 nV/√Hz | 4.6 nV/√Hz |
| Quiescent Current | 1 mA | 1 mA | 0.6 mA | 1 mA |
| Slew Rate | 225 V/µs | 225 V/µs | 120 V/µs | 260 V/µs |
| Supply Voltage Range | 2.7 V to 5 V | 2.7 V to 5 V | 2.7 V to 5 V | 2.5 V to 5.5 V |
| Disable Pin | Yes | Yes | Yes | No |
מבדילים עיקריים
- Lowest noise among high-speed RRIO amplifiers (לעומתOPA836)
- Integrated disable pin for power saving (לעומתOPA836)
- Lower quiescent current than comparable parts (לעומתLMH6643)
הערות תכנון
The ADA4807-1AKSZ-RL7 operates from 2.7 V to 5 V single supply. Use a 0.1 µF ceramic capacitor close to the V+ pin and a 10 µF bulk capacitor for low-frequency decoupling. For dual-supply operation, ensure both supplies are symmetrical and decoupled similarly.
For optimal noise performance, keep the feedback network components close to the amplifier and use a ground plane. Avoid routing high-speed digital traces near the input pins. The SC-70 package has a thermal pad; solder it to the PCB for improved heat dissipation.
The disable pin is active low. If unused, tie it to V+ to prevent accidental shutdown. Do not exceed the absolute maximum supply voltage of 6 V. Also, ensure the input common-mode voltage does not exceed the rails by more than 0.3 V to avoid latch-up.
מידע על תאימות
RoHS and REACH compliant per distributor data. Not AEC-Q100 qualified.
