AD8260: High Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps
The AD8260 includes a high current driver, usable as a transmitter, and a low noise, digitally programmable variable gain amplifier (DGA), useable as a receiver, combined in a 5 mm × 5 mm, 32-lead ...続きを見る
AD8260: High Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps
製品概要
The AD8260 includes a high current driver, usable as a transmitter, and a low noise, digitally programmable variable gain amplifier (DGA), useable as a receiver, combined in a 5 mm × 5 mm, 32-lead chip scale package.
The receiver section consists of a single-ended input preamplifier, and linear-in-dB, differential-output VGA. Usable at dc and frequencies to 80 MHz; the –3 dB bandwidth is 180 MHz. The driver-amplifier delivers ±300 mA, well suited for driving low impedance loads, even when connected to a 3.3 V supply.
The AD8260 DGA is ideal for trim applications and has a gain span of 30 dB, in 3 dB steps. Excellent bandwidth uniformity is maintained across the entire frequency range. The DGA’s low output-referred noise is advantageous in driving high speed ADCs. The differential output facilitates the interface to modern low voltage high speed ADCs.
Single-supply and dual-supply operation makes the part versatile and enables gain control of negative-going pulses, such as generated by photodiodes or photo-multiplier tubes, as well as processing band-pass signals on a single supply. For maximum dynamic range, it is essential that the part be ac-coupled when operating on a single supply.
The AD8260 preamplifier (PrA) is user configurable with external resistors for gains greater than 6 dB; as with any high frequency op amp, the gain is inverting or noninverting. The DGA is characterized with a noninverting PrA gain of 2×. The attenuator has a range of 30 dB and the output amplifier has a gain of 8× (18.06 dB). The lowest noninverting gain range is −6 dB to +24 dB and shifts up with increased PrA gain. The gain is controlled via a parallel port (Pin GNS0 to Pin GNS3) with 10 gain steps of 3 dB per code. For any nonused code, the preamplifier and DGA are disabled.
The AD8260 can operate with single or dual supplies from 3.3 V to ±5 V. An internal buffer normally provides a split supply reference for single-supply operation; an external reference can also be used when the VMID buffer is shut down.
The operating temperature range is −40°C to +105°C. The AD8260 is available in a 32-lead LFCSP.
Applications
クイックリンク
- 英語データシート Rev 0, 05/2008, (pdf, 418 kB)
- 利用上の注意:日本語を利用される際は、必ず英語の最新版をご覧ください
- 鉛フリー&RoHS情報
Features
- Driver amplifier
- Differential configuration—direct drive from DAC
- Preset gain of 1.5×
- 3 dB bandwidth: 155 MHz
- Large output drive: >±300 mA
- Combined preamplifier and VGA
- Supplies: 3.3 V to 10 V (with VMID enabled)
±3.3 V to ±5 V (with VMID disabled)
- Low noise
Voltage noise: 2.4 nV/√Hz
Current noise: 5 pA/√Hz - Gain range: 30 dB in 3 dB steps
−6 dB to +24 dB (preamplifier gain = 6 dB) - Single-ended preamplifier input and differential output
- −3 dB bandwidth: 180 MHz
- Power: 93 mW with 3.3 V supplies
Power-down for VGA, driver amplifier, and system
AD8639 - 16V Dual Auto-Zero, Rail-to-Rail Output, Precision Amplifier
AD8260 - High Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps
ADL5592 - 250 MHz to 2400 MHz RF Variable Gain Amplifier
| Part# | Gain Control | -3 dB BW (MHz) | Gain Low End (dB) | Gain High End (dB) | Number of Channels | Spectral Noise (nV/rtHz) | Supply Voltage (V) | Supply Current (max) | Gain Accuracy (dB) | 1 dB Comp Point (dBm) | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AD600 | Analog | 35 | 0 | +40 | 2 | 1.4 | ±5 | 14mA | - | - | - | $16.61 |
| AD602 | Analog | 35 | -10 | +30 | 2 | 1.4 | ±5 | 14mA | - | - | - | $13.36 |
| AD603 | Analog | 90 | -11 | +31 | 1 | 1.4 | ±5 | 20mA | ±0.5 | - | 8-Lead DIP, 8-Lead SOIC | $4.40 |
| AD604 | Analog | 40 | 0 | +48 | 2 | 0.8 | ±5 | 31mA | ±0.3 | 15 | 24-Lead SOIC, 24-Lead SSOP | $16.45 |
| AD605 | Analog | 40 | -14 | +34 | 2 | 1.8 | +5 | 23mA | ±0.2 | 15 | 16-Lead SOIC | $9.91 |
| AD8260 | Digital | 180 | -6 | +24 | 1 | 2.4 | +3.3 | 28mA | +0.25 | - | - | $3.84 |
| AD8320 | Digital | 150 | -10 | +26 | 1 | 53 | +12 | 105mA | ±0.2 | 22.5 | 20-Lead SOIC | - |
| AD8321 | Digital | 120 | -27.4 | +26 | 1 | 20 | +9 | 90mA | ±1 | 19.5 | 20-Lead SOIC | $4.40 |
| AD8322 | Digital | 180 | -12.6 | +29.5 | 1 | 64 | +5 | 113mA | ±2 | 19 | 28-Lead TSSOP | $3.19 |
| AD8323 | Digital | 100 | -26 | +27.5 | 1 | - | +5 | - | - | - | 28-Lead TSSOP | $3.34 |
| AD8324 | Digital | 100 | -25.5 | +33.5 | 1 | 157 | +3.3 | 207mA | ±1 | 21 | 20-Lead LFCSP, 20-Lead QSOP | $1.73 |
| AD8325 | Digital | 100 | -29.5 | +30 | 1 | 56 | +5 | 133mA | ±1 | 18.5 | 28-Lead TSSOP | $3.34 |
| AD8326 | Digital | 100 | -26 | +27.5 | 1 | 100 | ±5 | 157mA | ±1 | 26.5 | 28-Lead PSOP, 28-Lead TSSOP | $3.95 |
| AD8327 | Digital | 160 | -18 | +30 | 1 | 64 | +5 | 105mA | ±1 | 18 | 20-Lead TSSOP | $3.80 |
| AD8328 | Digital | 107 | -27.5 | +31.5 | 1 | 135 | - | 120mA | ±1 | 18.4 | 20-Lead LFCSP, 20-Lead QSOP | $1.92 |
| AD8330 | Analog | 150 | 0 | +50 | 1 | 5 | +6 | 20mA | ±0.5 | - | 16-Lead LFCSP, 16-Lead QSOP | $4.44 |
| AD8331 | Analog | 120 | -4.5 | +43 | 1 | 0.74 | +5 | 25mA | +0.5 | 7 | - | $5.45 |
| AD8332 | Analog | 120 | -4.5 | +43.5 | 2 | 0.74 | +5 | 58mA | +0.5 | 7 | 28-Lead TSSOP, 32-Lead CSP | $10.57 |
| AD8334 | Analog | 100 | +4.5 | +43.5 | 4 | 0.74 | +5 | 116mA | +0.5 | 7 | 64-Lead LFCSP | $14.66 |
| AD8335 | Analog | 70 | -10 | +38 | 4 | 1.3 | +5 | 76mA | ±0.2 | 18 | 64-Lead LFCSP | $12.14 |
| AD8336 | Analog | 115 | -14 | +46 | 1 | 3 | ±12 | 25mA | ±0.5 | 11 | 16-Lead LFCSP | $4.59 |
| AD8337 | Analog | 280 | 0 | +24 | 1 | 2.2 | ±5 | 15mA | ±0.25 | - | 8-Lead LFCSP | $2.52 |
| AD8367 | Analog | 500 | -2.5 | +42.5 | 1 | 1.84 | +5.5 | 26mA | ±0.2 | 8.1 | 14-Lead TSSOP | $4.60 |
| AD8368 | Analog | 800 | -12 | +22 | 1 | - | +5 | - | ±0.4 | 13 | 24-Lead LFCSP | $4.60 |
| AD8369 | Digital | 600 | -5 | +40 | 1 | 2 | +5.5 | 37mA | ±0.5 | 0.5 | 16-Lead TSSOP | $4.25 |
| AD8370 | Digital | 700 | +25 | +34 | 1 | 2.1 | +5.5 | 78mA | - | 14 | 16-Lead TSSOP | $4.25 |
| AD8375 | Digital | 690 | -4 | +20 | 1 | - | +5 | 130mA | ±0.2 | 19 | 24-Lead LFCSP | $4.54 |
| AD8376 | Digital | 690 | -4 | +20 | 2 | - | +5 | 260mA | ±0.2 | 19 | 32-Lead CSP | $6.57 |
| ADL5330 | Analog | 3000 | -34 | +22 | 1 | - | +5 | 240mA | - | 1.2 | 24-Lead LFCSP | $5.04 |
| ADL5390 | Analog | 2400 | - | +7 | 1 | - | +5 | 130mA | - | 9.6 | 24-Lead LFCSP | $7.59 |
| ADL5391 | Analog | 2000 | - | +9.5 | 1 | 26.7 | +5 | 135mA | - | 15.1 | 16-Lead LFCSP | $4.95 |
| ADL5592 | Digital | 2400 | - | +30.5 | 1 | - | - | - | -0.02 | - | 40-Lead LFCSP | - |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
AD8260 モデル一覧
| モデル | 製品状況 | パッケージ | ピン数 | 動作 温度範囲 |
価格* (1000 pcs.) |
出荷 可能日 |
RoHS互換 | サンプル・カート | 購入カート |
|---|---|---|---|---|---|---|---|---|---|
| AD8260-EVALZ | 製造中 | EVALUATION BOARDS | - | 工業用 | $104.44 | 08/22/2008 | Y | お問い合わせ | カートに入れる |
| AD8260ACPZ-R7 | 製造中 | 32 ld LFCSP (5x5x.85mm) w/2.7exposed pad | 32 | 工業用 | $3.84 | 08/22/2008 |
Y
成分表 |
カートに入れる | カートに入れる |
| AD8260ACPZ-RL | 製造中 | 32 ld LFCSP (5x5x.85mm) w/2.7exposed pad | 32 | 工業用 | $3.84 | - |
Y
成分表 |
お問い合わせ | カートに入れる |
| AD8260ACPZ-WP | 製造中 | 32 ld LFCSP (5x5x.85mm) w/2.7exposed pad | 32 | 工業用 | $3.84 | - |
Y
成分表 |
お問い合わせ | カートに入れる |
| AD8260WACPZ-R7 | 発売前 | 32 ld LFCSP (5x5x.85mm) w/2.7exposed pad | 32 | 工業用 | $ | - |
Y
成分表 |
お問い合わせ | お問い合わせ |
| AD8260WACPZ-RL | 発売前 | 32 ld LFCSP (5x5x.85mm) w/2.7exposed pad | 32 | 工業用 | $ | - |
Y
成分表 |
お問い合わせ | お問い合わせ |
| AD8260WACPZ-WP | 発売前 | 32 ld LFCSP (5x5x.85mm) w/2.7exposed pad | 32 | 工業用 | $ | - |
Y
成分表 |
お問い合わせ | お問い合わせ |
Help
- 発売前:このモデルはまだ全面的な製造には至っていませんが、サンプルは入手できます。
- 製造:現在、このモデルは製造しておりますので、製品の購入とサンプルの入手が可能です。
- 最終販売:このモデルは製造中止が予定されておりますが、まだしばらくの間は販売しております。
- 製造中止製品:この製品はすでに製造中止となっており、販売しておりません。
パッケージの詳細図および化学組成については、パッケージのサイトをご覧ください
モデル名によりそれぞれ動作温度範囲が異なる場合がありますので、詳細についてはデータシートでご確認ください。
- 商用温度範囲:0~70℃
- 軍用温度範囲:-55~+125℃
- 拡張工業用温度範囲(1):-40~+85℃
拡張工業用温度範囲(2):-40~+105℃
拡張工業用温度範囲(3):-40~+125℃
価格は1個当たりの米ドルで、米国内における販売価格(FOB)で表示されておりますので、予算のためにのみご使用いただけます。 また、その価格は変更されることがあります。米国以外のお客様への価格は、輸送費、各国の税金、手数料、為替レートにより決定されます。価格・納期等の詳細情報については、弊社正規販売代理店または担当営業にお問い合わせください。なお、 評価用ボードおよび評価用キットの表示価格は1個構成としての価格です。


Close