MAX844ESA+ Maxim Integrated Products, MAX844ESA+ Datasheet - Page 5

• Manufacturer Part Number: MAX844ESA+
• Description: IC BIAS GAASFET REG 8-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of MAX844ESA+

• Applications: Charge Pump, Cellular Telephone Transmitter
• Voltage - Input: 2.5 ~ 10 V
• Number Of Outputs: 1
• Voltage - Output: -2V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Function: Inverting
• Output Voltage: - 2 V, - 0.5 V to - 9.4 V
• Output Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NOTE: dBµV = 20 LOG ______
(Circuit of Figure 2a, V
____________________________Typical Operating Characteristics (continued)
Low-Noise, Regulated, -2V GaAsFET Bias
_______________________________________________________________________________________
V
1µV
IN
OUT
= 3.6V, T
-10
-10
40
30
20
10
50
40
30
20
10
40
30
20
10
0
0
0
0.1
0.1
0.1
A
= +25°C, unless otherwise noted.)
V
I
V
I
V
I
OUT
OUT
OUT
IN
IN
IN
= 3.6V,
= 3.6V,
= 3.6V,
= 4mA
= 4mA
= 4mA
1
1
1
(C1 = C2 = C3 = 0.22 F, C4 = 4.7 F)
MAX843/MAX844 NOISE SPECTRUM
(C1 = C2 = C3 = 1 F, C4 = 10 F)
(C1 = C2 = C3 = 1 F, C4 = 10 F)
MAX840 NOISE SPECTRUM
MAX840 NOISE SPECTRUM
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
10
10
10
100
100
100
1000
1000
1000
5