OP200 Analog Devices, OP200 Datasheet - Page 13

• Manufacturer Part Number: OP200
• Description: Dual Low Offset, Low Power Operational Amplifier
• Manufacturer: Analog Devices

Specifications of OP200

• -3db Bandwidth: 500kHz
• Slew Rate: 150mV/µs
• Vos: 80µV
• Ib: 100pA
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 11nV/rtHz
• Vcc-vee: 6V to 40V
• Isy Per Amplifier: 775µA
• Packages: DIP,LCC,SOIC

DUAL 12-BIT VOLTAGE OUTPUT DAC
The dual output DAC shown in Figure 33 is capable of providing
untrimmed 12-bit accurate operation over the entire military
temperature range. Offset voltage, bias current, and gain errors
of the OP200 contribute less than 1/10 of an LSB error at 12 bits
over the military temperature range.
REFERENCE
VOLTAGE
CONTROL
10V
PIN 6 (MSB)
DAC
DAC DATA BUS
GND
V
REF43
IN
+5V
V
TRIM
2
4
18
19
20
R1
22kΩ
22
OUT
4
TO PIN 17 (LSB)
V
V
DAC A/DAC B
CS
WR
REF A
REF B
6
5
DAC8221
2
3
DAC8221
DAC8221
DAC A
DAC B
Figure 34. Dual Precision Voltage Reference
Figure 33. Dual 12-Bit Voltage Output DAC
OP200AZ
1/2
1/2
DGND
–5V
+5V
1/2
5V
V
8
4
5
21
DD
Rev. D | Page 13 of 16
1
1N914
AGND
I
I
D1
R
OUT A
R
OUT B
FB A
FB B
10kΩ
R3
23
24
3
2
1
5kΩ
R4
DUAL PRECISION VOLTAGE REFERENCE
A dual OP200 and a REF43, a 2.5 V reference, can be used to
build a ±2.5 V precision voltage reference. Maximum output
current from each reference is ±10 mA with load regulation
under 25 μV/mA. Line regulation is better than 15 μV/V and
output voltage drift is under 20 μV/°C. Output voltage noise
from 0.1 Hz to 10 Hz is typically 75 μV p-p. R1 and D1 ensure
correct startup.
6
5
OP200AZ
10kΩ
1/2
R3
2
3
6
5
7
OP200AZ
OP200AZ
1/2
1/2
8
–2.5V
+2.5V
1
4
7
OUT A
V–
OUT B
OP200