ADA4841-1YRZ

The ADA4841-1YRZ belongs to ADA4841-1/ ADA4841-2 series which are ideally suited to drive the AD7685/AD7686, 16-bit PulSAR ADCs. The ADA4841-1/ADA4841-2 packages feature RoHS compliant lead finishes. The amplifiers are rated to work over the industrial temperature range (-40°C to +125°C). The ADA4841-1/ ADA4841-2 can drive up to 10 pF of capacitive load with minimal peaking. The ADA4841-1/ADA4841-2 provide the performance required to efficiently support emerging 16-bit to 18-bit ADCs and are ideal for portable instrumentation, high channel count, industrial measurement, and medical applications. The ADA4841-1/ADA4841-2 are unity gain stable, low noise and distortion, rail-to-rail output amplifiers that have a quiescent current of 1.5 mA maximum. In spite of their low power consumption, these amplifiers offer low wideband voltage noise performance of 2.1 nV/Hz and 1.4 pA/Hz current noise, along with excellent spurious-free dynamic range (SFDR)of -105 dBc at 100 kHz. To maintain a low noise environment at lower frequencies, the amplifiers have low 1/f noise of 7 nV/Hz and 13 pA/Hz at 10 Hz. The ADA4841-1/ADA4841-2 output can swing to less than 50 mV of either rail. The input common-mode voltage range extends down to the negative supply.

The features of ADA4841-1YRZ can be summarized as (1)low power: 1.1 mA/amp; (2)low wideband noise 2.1 nV/Hz/ 1.4 pA/Hz; (3)low 1/f noise 7 nV/Hz @ 10 Hz/ 13 pA/Hz @ 10 Hz; (4)low distortion: -105 dBc @ 100 kHz, V O = 2 V p-p; (5)high speed 80 MHz, -3 dB bandwidth (G = +1)/ 12 V/s slew rate / 175 ns settling time to 0.1%; (6)low offset voltage: 0.3 mV maximum; (7)rail-to-rail output; (8)power down; (9)wide supply range: 2.7 V to 12 V.

The absolute maximum ratings of ADA4841-1YRZ are (1)supply voltage: 12.6 V; (2)power dissipation: see figure 5; (3)common-mode input voltage: -V S 0.5 V to +V S + 0.5 V; (4)differential input voltage: ±1.8 V; (5)storage temperature range: -65°C to +125°C; (6)operating temperature range: -40°C to +125°C; (7)lead temperature: JEDEC J-STD-20; (8)junction temperature: 150°C.