FEATURES
Bandwidth – 110 MHz
Slew Rate – 3000 V/ms
Low Offset Voltage – <1 mV
Very Low Noise – < 4 nV/√
Low Supply Current – 8.5 mA Mux
Wide Supply Range – 65 V to 615 V
Drives Capacitive Loads
Pin Compatible with BUF03
APPLICATIONS
Instrumentation Buffer
RF Buffer
Line Driver
High Speed Current Source
Op Amp Output Current Booster
High Performance Audio
High Speed AD/DA
GENERAL DESCRIPTION
The BUF04 is a wideband, closed-loop buffer that combines
state of the art dynamic performance with excellent dc
performance. This combination enables designers to maximize
system performance without any speed versus dc accuracy
compromises.
Built on a high speed Complementary Bipolar (CB) process for
better power performance ratio, the BUF04 consumes less than
8.5 mA operating from ±5 V or ±15 V supplies. With a 2000 V/µs
min slew rate, and 100 MHz gain bandwidth product, the
BUF04 is ideally suited for use in high speed applications where
low power dissipation is critical.
Full ±10 V output swing over the extended temperature range
along with outstanding ac performance and high loop gain
accuracy makes the device useful in high speed data acquisition
systems.
Hz
High Speed Buffer
BUF04*
FUNCTIONAL BLOCK DIAGRAMS
Plastic DIP
8-Lead Narrow-Body SO
(S Suffix)
1
BUF04
High slew rate and very low noise and THD, coupled with wide
input and output dynamic range, make the BUF04 an excellent
choice for video and high performance audio circuits.
The BUF04’s inherent ability to drive capacitive loads over a
wide voltage and temperature range makes it extremely useful
for a wide variety of applications in military, industrial, and
commercial equipment.
The BUF04 is specified over the extended industrial (–40°C to
+85°C) and military (–55°C to +125°C) temperature range.
BUF04s are available in plastic and ceramic DIP plus SO-8
surface mount packages.
Contact your local sales office for MIL-STD-883 data sheet and
availability.
*Patent pending.
8-Lead and Cerdip
(P, Z Suffix)
1
1
NULL
NC
IN
V–
BUF04
Top View
2
3
4
NC = NO CONNECT
8
NULL
7
V+
6
OUT
5
NC
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700Fax: 617/326-8703
BUF04–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(@ VS = 615.0 V, TA = +258C unless otherwise noted)
ParameterSymbolConditionsMinTypMaxUnits
INPUT CHARACTERISTICS
Offset VoltageV
Input Bias CurrentI
B
Input Voltage RangeV
Offset Voltage Drift∆V
OS
CM
/∆T30µV/°C
OS
–40°C ≤ T
V
CM
–40°C ≤ T
≤ +85°C1.34mV
A
= 00.75µA
≤ +85°C2.210µA
A
0.31mV
±13V
Offset Null Range±25mV
OUTPUT CHARACTERISTICS
Output Voltage SwingV
Output Current – ContinuousI
Peak Output CurrentI
O
OUT
OUTP
R
= 150 Ω,±10.5±11.1V
L
–40°C ≤ T
R
= 2 kΩ,±13±13.5V
L
–40°C ≤ T
≤ +85°C±10±11V
A
≤ +85°C±13±13.15V
A
±50±65mA
Note 2±80mA
TRANSFER CHARACTERISTICS
GainA
VCL
Gain LinearityNLR
R
= 2 kΩ0.9950.9985 1.005V/V
L
–40°C ≤ T
= 1 kΩ, VO = ±10 V0.005%
L
R
= 150 kΩ0.008%
L
≤ +85°C0.9950.9980 1.005V/V
A
POWER SUPPLY
Power Supply Rejection RatioPSRRV
Supply CurrentI
SY
= ±4.5 V to ± 18 V7693dB
S
–40°C ≤ T
VO = 0 V, R
≤ +85°C7693dB
A
= ∞6.98.5mA
L
–40°C ≤ TA ≤ +85°C6.98.5mA
DYNAMIC PERFORMANCE
Slew RateSRR
BandwidthBW–3 dB, C
BandwidthBW–3 dB, C
BandwidthBW–3 dB, C
Settling TimeV
Differential Phasef = 3.58 MHz, R
Differential Gainf = 3.58 MHz, R
= 2 kΩ, CL = 70 pF20003000V/µs
L
IN
f = 4.43 MHz, R
f = 4.43 MHz, R
= 20 pF, R
L
= 20 pF, R
L
= 20 pF, R
L
= ∞110MHz
L
= 1 kΩ110MHz
L
= 150 Ω110MHz
L
= ±10 V Step to 0.1%60ns
= 150 Ω0.02Degrees
L
= 150 Ω0.03Degrees
L
= 150 Ω0.014%
L
= 150 Ω0.008%
L
Input Capacitance3pF
NOISE PERFORMANCE
Voltage Noise Densitye
Current Noise Densityi
NOTE
1
Long term offset voltage is guaranteed by a 1000 hour life test performed on three independent lots at +125 °C with an LTPD of 1.3.
Specifications subject to change without notice.
n
n
f = 1 kHz4nV/√Hz
f = 1 kHz2pA/√Hz
–2–
REV. 0
BUF04
ELECTRICAL CHARACTERISTICS
(@ VS = 65.0 V, TA = +258C unless otherwise noted)
ParameterSymbolConditionsMinTypMaxUnits
INPUT CHARACTERISTICS
Offset VoltageV
Input Bias CurrentI
B
Input Voltage RangeV
Offset Voltage Drift∆V
OS
CM
/∆T30µV/°C
OS
–40°C ≤ T
V
CM
–40°C ≤ T
≤ +85°C1.04mV
A
= 0 V0.155µA
≤ +85°C1.610µA
A
0.82.0mV
±3.0V
Offset Null Range±25mV
OUTPUT CHARACTERISTICS
Output Voltage SwingV
Output Current - ContinuousI
Peak Output CurrentI
O
OUT
OUTP
R
= 150 Ω,±3.0V
L
–40°C ≤ T
R
= 2 kΩ,±3.0±3.6V
L
–40°C ≤ T
≤ +85°C±2.75±3.00V
A
≤ +85°C±3.0±3.35V
A
±40mA
Note 2±75mA
TRANSFER CHARACTERISTICS
GainA
VCL
Gain LinearityNLR
R
= 2 kΩ,0.9950.9977 1.005V/V
L
–40°C ≤ T
= 1 kΩ0.005%
L
≤ +85°C0.9951.005V/V
A
POWER SUPPLY
Power Supply Rejection RatioPSRRV
Supply CurrentI
SY
= ±4.5 V to ± 18 V7693dB
S
–40°C ≤ T
VO = 0 V, R
≤ +85°C7693dB
A
= ∞6.608mA
L
–40°C ≤ TA ≤ +85°C6.708mA
DYNAMIC PERFORMANCE
Slew RateSRR
BandwidthBW–3 dB, C
BandwidthBW–3 dB, C
BandwidthBW–3 dB, C
Differential Phasef = 3.58 MHz, R
Differential Gainf = 3.58 MHz, R
= 2 kΩ, CL = 70 pF2000V/µs
L
f = 4.43 MHz, R
f = 4.43 MHz, R
= 20 pF, R
L
= 20 pF, R
L
= 20 pF, R
L
= 150 Ω0.13Degrees
L
= 150 Ω0.15Degrees
L
= 150 Ω0.04%
L
= 150 Ω0.06%
L
= ∞100MHz
L
= 1 kΩ100MHz
L
= 150 Ω100MHz
L
NOISE PERFORMANCE
Voltage Noise Densitye
Current Noise Densityi
NOTE
1
Long term offset voltage is guaranteed by a 1000 hour life test performed on three independent lots at +125 °C, with an LTPD of 1.3.
Specifications subject to change without notice.
n
n
f = 1 kHz4nV/√Hz
f = 1 kHz2pA/√Hz
REV. 0
–3–
BUF04
WAFER TEST LIMITS
(@ VS = 615.0 V, TA = +258C unless otherwise noted)
ParameterSymbolConditionsLimitUnits
Offset VoltageV
Input Bias CurrentI
OS
V
OS
B
V
= ±15 V1mV max
S
V
= ±5 V2mV max
S
V
= 0 V5µA max
CM
Power Supply Rejection RatioPSRRV = ±4.5 V to ±18 V76dB
Output Voltage RangeV
Supply CurrentI
GainA
NOTE
Electrical tests and wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard
product dice. Consult factory to negotiate specifications based on dice lot qualifications through sample lot assembly and testing.