
OPA646
Current
Mirror
Output
Stage
C
C
Non-Inverting
Input
3
2
Inverting
Input
+V
7, 8
4, 5
S
–V
S
V
OUT
6
Low Power, Wide Bandwidth
OPERATIONAL AMPLIFIER
OPA646
FEATURES
G
LOW POWER: 55mW
G
UNITY-GAIN BANDWIDTH: 650MHz
G
UNITY-GAIN STABLE
G
FAST 12-BIT SETTLING: 15ns (0.01%)
G
LOW INPUT BIAS CURRENT: 2
μ
A
G
LOW HARMONICS: –82dBc at 5MHz
G
LOW DIFFERENTIAL GAIN/PHASE
ERRORS: 0.025%/0.08
°
DESCRIPTION
The OPA646 is a low power, wideband voltage feed-
back operational amplifier. It features a high
bandwidth of 650MHz as well as a 12-bit settling time
of only 15ns. Its low input bias current and wide
bandwidth allows it to be used for high speed integra-
tor and active filter designs. Its low distortion gives
exceptional performance for telecommunications,
medical imaging and video applications.
The OPA646 is internally compensated for unity-gain
stability. This amplifier has a fully symmetrical
differential input due to its “classical” operational
amplifier circuit architecture. Its unusual combination
of speed, accuracy and low power make it an ideal
choice for many portable, multichannel and other high
speed applications where power is at a premium.
APPLICATIONS
G
TELECOMMUNICATIONS
G
MEDICAL IMAGING
G
CCD IMAGING
G
PORTABLE EQUIPMENT
G
ACTIVE FILTERS
G
VIDEO AMPLIFICATION
G
ADC/DAC GAIN AMPLIFIER
G
HIGH SPEED INTEGRATORS
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111
Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
OPA646
1993 Burr-Brown Corporation
PDS-1192C