Overview
The AD830ANZ is a wideband, differencing amplifier produced by Analog Devices Inc. It is designed primarily for use at video frequencies but is also versatile enough to be used in a variety of other applications. This amplifier accurately amplifies fully differential signals while rejecting common-mode signals, even at high frequencies. The AD830ANZ is particularly useful for its high impedance inputs, which ease interfacing with finite source impedances and preserve excellent common-mode rejection. It offers significant improvements over discrete difference amplifier approaches, especially in high-frequency common-mode rejection.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Temperature Range | -40°C | +85°C | |||
| Unity Gain Bandwidth | Gain = +1 | 35 MHz | 40 MHz | ||
| 0.1 dB Gain Flatness | Gain = +1, VOUT = 100 mV rms | 5 MHz | 6.5 MHz | ||
| Differential Gain Error | 0 V to 0.7 V, frequency = 4.5 MHz, Gain = +2 | 0.14% | 0.18% | ||
| Differential Phase Error | 0 V to 0.7 V, frequency = 4.5 MHz, Gain = +2 | 0.32° | 0.4° | ||
| Slew Rate | Gain = +1, 2 V step, RL = 500 Ω | 210 V/μs | |||
| Slew Rate | Gain = +1, 4 V step, RL = 500 Ω | 240 V/μs | |||
| Common-Mode Voltage Range | +12.8 V to -12 V | ||||
| Differential Voltage Range | ±2 V | ||||
| Common-Mode Rejection Ratio (CMRR) | At 4 MHz | 60 dB |
Key Features
- Differential amplification with high common-mode voltage range (+12.8 V to -12 V) and differential voltage range (±2 V).
- High common-mode rejection ratio (CMRR) of 60 dB at 4 MHz.
- Fast dynamic performance with 85 MHz unity gain bandwidth and 35 ns settling time to 0.1%.
- Good gain flatness and excellent differential gain and phase accuracy, making it suitable for video system applications.
- High impedance inputs for easy interfacing with finite source impedances.
- Built-in differential clipping level of ±2.3 V.
Applications
The AD830ANZ is suitable for a variety of applications, including:
- Video system applications due to its good gain flatness and excellent differential gain and phase accuracy.
- General-purpose signal processing from DC to 10 MHz.
- Level shifting and high-frequency amplification with low distortion.
- Handling differential signals and differing system commons.
Q & A
- What is the primary function of the AD830ANZ? The AD830ANZ is a wideband, differencing amplifier designed to accurately amplify fully differential signals while rejecting common-mode signals.
- What is the operating temperature range of the AD830ANZ? The operating temperature range is -40°C to +85°C.
- What is the unity gain bandwidth of the AD830ANZ? The unity gain bandwidth is 35 MHz to 40 MHz.
- What is the common-mode rejection ratio (CMRR) of the AD830ANZ at 4 MHz? The CMRR is 60 dB at 4 MHz.
- What are the key features of the AD830ANZ's input stage? The input stage features high impedance inputs, fully differential inputs, high linearity, and wide voltage range operation.
- What are some typical applications of the AD830ANZ? Typical applications include video system applications, general-purpose signal processing, level shifting, and high-frequency amplification with low distortion.
- What is the slew rate of the AD830ANZ for a 2 V step with a load resistance of 500 Ω? The slew rate is 210 V/μs for a 2 V step with a load resistance of 500 Ω.
- Does the AD830ANZ have built-in protection against short circuits? Yes, the AD830ANZ has internal short-circuit protection, but this may not be sufficient to prevent damage if the output is shorted to a supply rail for an extended period.
- What is the maximum safe junction temperature for the AD830ANZ in plastic packages? The maximum safe junction temperature for plastic packages is 145°C.
- How does the AD830ANZ compare to discrete difference amplifier approaches? The AD830ANZ offers significant improvements over discrete difference amplifier approaches, especially in high-frequency common-mode rejection.
