Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps 8-DIP (0.300, 7.62mm) J-FET 15V 0°C~70°C AD845 2.54mm OP AMP, FET FAST SETTLING, DIP, 845
711
Oct 10, 2021
Perry Burke
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps 8-DIP (0.300, 7.62mm) J-FET 15V 0°C~70°C AD845 2.54mm OP AMP, FET FAST SETTLING, DIP, 845
The AD845 is a fast, precise, N channel JFET input, monolithic operational amplifier. there is a huge range of Semiconductors, Capacitors, Resistors and ICs in stock. Welcome RFQ.
AD845JNZ
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $18.46788 | $18.47 |
| 10+ | $17.42253 | $174.23 |
| 100+ | $16.43635 | $1643.64 |
| 500+ | $15.50599 | $7753 |
| 1000+ | $14.62829 | $14628.29 |
AD845 Symbol
AD845 Footprint
AD845 3D Model
The AD845 is a fast, precise, N channel JFET input, monolithicoperational amplifier. It is fabricated using Analog Devices’ complementary bipolar (CB) process. It can easily be used to upgrade many existing designs that use BiFET or FET input hybrid amplifiers and, in some cases, those which use bipolar input op-amps.
Analog Devices Inc. AD845JNZ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. AD845JNZ.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | PRODUCTION (Last Updated: 3 months ago) | |
| Factory Lead Time | 8 Weeks | |
| Contact Plating | Tin | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 8-DIP (0.300, 7.62mm) | |
| Number of Pins | 8Pins | |
| Operating Temperature | 0°C~70°C | |
| Packaging | Tube | |
| JESD-609 Code | e3 | |
| Pbfree Code | no | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 8Terminations | |
| ECCN Code | EAR99 | |
| Max Power Dissipation | 1.6W | |
| Number of Functions | 1Function | |
| Supply Voltage | 15V | |
| Terminal Pitch | 2.54mm |
| Product Attribute | Attribute Value | |
|---|---|---|
| Base Part Number | AD845 | |
| Pin Count | 8 | |
| Number of Channels | 1Channel | |
| Operating Supply Current | 10mA | |
| Nominal Supply Current | 10mA | |
| Power Dissipation | 1.6W | |
| Output Current | 50mA | |
| Quiescent Current | 10mA | |
| Slew Rate | 100V/μs | |
| Architecture | VOLTAGE-FEEDBACK | |
| Amplifier Type | J-FET | |
| Common Mode Rejection Ratio | 110 dB | |
| Current - Input Bias | 750pA | |
| Max Input Voltage | 18V | |
| Voltage - Supply, Single/Dual (±) | ±4.75V~18V | |
| Output Current per Channel | 50mA | |
| Supply Type | Dual | |
| Input Offset Voltage (Vos) | 250μV | |
| Neg Supply Voltage-Nom (Vsup) | -15V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Unity Gain BW-Nom | 16000 kHz | |
| Voltage Gain | 113.98dB | |
| Average Bias Current-Max (IIB) | 0.045μA | |
| Power Supply Rejection Ratio (PSRR) | 110dB | |
| Low-Offset | NO | |
| Frequency Compensation | YES | |
| Voltage - Input Offset | 700μV | |
| Bias Current-Max (IIB) @25C | 0.002μA | |
| Dual Supply Voltage | 15V | |
| Input Capacitance | 4pF | |
| Height | 3.43mm | |
| Length | 9.27mm | |
| Width | 7.24mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Contains Lead |
• Replaces Hybrid Amplifiers in Many Applications
• AC PERFORMANCE:
- Settles to 0.01% in 350 ns
- 100 V/s Slew Rate
- 12.8 MHz Min Unity Gain Bandwidth
- 1.75 MHz Full Power Bandwidth at 20 V p-p
• DC PERFORMANCE:
- 0.25 mV Max Input Offset Voltage
- 5 V/C Max Offset Voltage Drift
- 0.5 nA Input Bias Current
- 250 V/mV Min Open-Loop Gain
- 4 V p-p Max Voltage Noise, 0.1 Hz to 10 Hz
- 94 dB Min CMRR
• Available in Plastic Mini-DIP, Hermetic CERDIP, and SOIC Packages. Also Available in Tape and Reel in Accordance with EIA-481A Standard
Active filters
High-speed integrators
Photodiode preamps
Sample-and-hold amplifiers
Log amplifiers
For buffering A/D and D/A converters
AD845 Simplified Schematic
The circuit below shows an op-amp controlling the analogue input of an A/D converter. It must be able to maintain a constant output voltage under dynamically changing load conditions. The input current is compared to a sequence of switched trial currents in consecutive approximation converters. The comparison point is diode clamped, however, it can stray several hundred millivolts, resulting in A/D input current modulation at a high frequency. The loop gain artificially lowers the output impedance of a feedback amplifier. The amplifier output impedance can approach its open-loop value at high frequencies where the loop gain is low.
AD845 As ADC Unity Gain Buffer
Due to current limiting resistors, most IC amplifiers have a minimum open-loop output impedance of 25 W. A few hundred microamps reflected from converter loading changes can cause sudden input voltage errors. The amplifier's output will recover to the nominal value before the converter makes its comparison if the A/D conversion speed is not excessive and the amplifier's bandwidth is sufficient. However, many amplifiers have a narrow bandwidth, resulting in delayed output transient recovery.
Because it has a wide bandwidth and a high open-loop gain, the AD845 is appropriate for driving high-resolution A/D converters with conversion periods of 5 ms or more.
Analog Devices is an international market leader in the design, production, and commercialization of a large range of high-performance integrated circuits (ICs) for analogue, mixed-signal, and digital signals (DSP) processing of almost all electronic systems. Since we started in 1965, the focus has been on the engineering challenge in electronic equipment related to signal to process. Our signal processing solutions, utilized by over 100,000 customers worldwide, play a key role in the conversion, conditioning, and processing of real-world events such as temperature, pressure, sonority, illumination, speed, and movement to electric signals for a wide range of electronic devices.
Download datasheets and manufacturer documentation for AD845JNZ
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