LMH6619MA National Semiconductor, LMH6619MA Datasheet - Page 21

• Manufacturer Part Number: LMH6619MA
• Description: OP AMP, DUAL, 130 MHZ, POWERWISE
• Manufacturer: National Semiconductor

Specifications of LMH6619MA

• Op Amp Type: High Speed
• No. Of Amplifiers: 2
• Bandwidth: 58MHz
• Slew Rate: 57V/µs
• Supply Voltage Range: 2.7V To 11V
• Amplifier Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: -40°C To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

When the op amp and the ADC are using the same supply, it
is important that both devices are well bypassed. A 0.1 µF
ceramic capacitor and a 10 µF tantalum capacitor should be
located as close as possible to each supply pin. A sample
SINGLE TO DIFFERENTIAL ADC DRIVER
Figure 5 shows the LMH6619 used to drive a differential ADC
with a single-ended input. The ADC121S625 is a fully differ-
FIGURE 4. LMH6618 and ADC121S101 Layout
FIGURE 5. LMH6619 Driving an ADC121S625
21
layout is shown in Figure 4. The 0.1 µF capacitors (C13 and
C6) and the 10 µF capacitors (C11 and C5) are located very
close to the supply pins of the LMH6618 and the
ADC121S101.
ential 12-bit ADC. Table 2 shows the performance data of the
LMH6619 and the ADC121S625.
20195840
www.national.com
20195880