Philips XSA5223CU, XSA5223CK Datasheet

Philips
Semiconductors

SA5223

Wide dynamic range AGC
transimpedance amplifier (150MHz)

Product specification 1995 Oct 24

INTEGRATED CIRCUITS

IC19 Data Handbook

Philips Semiconductors Product specification

SA5223Wide dynamic range AGC transimpedance amplifier(150MHz)

2

1995 Oct 24 853-1816 15939

DESCRIPTION

The SA5223 is a wide-band, low-noise transimpedance amplifier
with differential outputs, incorporating AGC and optimized for signal
recovery in wide-dynamic-range fiber optic receivers, such as
SONET. The part is also suited for many other RF and fiber optic
applications as a general purpose gain block.

The SA5223 is the first AGC amplifier to incorporate internal AGC
loop hold capacitor, therefore, no external components are required.
The internal AGC loop enables the SA5223 to effortlessly handle
bursty data over a range of nA to mA of signal current, positive
direction (sinking) only.

FEA TURES

•Extremely low noise:

1.17pA

ń

Hz

Ǹ

•Single 5V supply

•Low supply current: 22mA

•Large bandwidth: 150MHz

•Differential outputs

•Internal hold capacitor

•Low input/output impedances

•High power-supply-rejection ratio: 55dB

•Tight transresistance control

•High input overload: 4mA

•2000V HBM ESD protection

PIN DESCRIPTION

D Package

IN

GND

2

OUT

V

CC

1

2

3

4

8

7

6

5

OUT

GND

4

GND

3

GND

1

SD00369

APPLICATIONS

•OC3 SONET preamp (see AN1431 for detailed analysis

•Current-to-voltage converters

•Wide-band gain block

•Medical and scientific instrumentation

•Sensor preamplifiers

•Single-ended to differential conversion

•Low noise RF amplifiers

•RF signal processing

ORDERING INFORMATION

DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #

8-Pin Plastic Small Outline

-40 to +85°C

SA5223D SOT96-1

For unpackaged die please contact factory.

ABSOLUTE MAXIMUM RATINGS

SYMBOL PARAMETER RATING UNITS

V

CC

Power supply voltage 6 V

T

A

Ambient temperature range -40 to +85

°C

T

J

Junction temperature range -55 to +150

°C

T

STG

Storage temperature range -65 to +150

°C

P

D

Power dissipation TA = 25oC (still air)

1

0.78 W

I

INMAX

Maximum input current 5 mA

NOTE:

1. Maximum power dissipation is determined by the operating ambient temperature and the thermal resistance θ

JA

= 158oC/W. Derate

6.2mW/

°C above 25°C.

RECOMMENDED OPERATING CONDITIONS

SYMBOL PARAMETER RATING UNITS

V

CC

Power supply voltage 4.5 to 5.5 V

T

A

Ambient temperature range: SA grade -40 to +85

°C

T

J

Junction temperature range: SA grade -40 to +105

°C

Philips Semiconductors Product specification

SA5223Wide dynamic range AGC transimpedance amplifier(150MHz)

1995 Oct 24

3

DC ELECTRICAL CHARACTERISTICS

Typical data and Min and Max limits apply at TA = 25°C, and VCC = +5V, unless otherwise specified.

SA5223

SYMBOL

PARAMETER

TEST CONDITIONS

Min Typ Max

UNIT

V

IN

Input bias voltage 1.3 1.55 1.8 V

V

O

±

Output bias voltage 2.9 3.2 3.5 V

V

OS

Output offset voltage (V

PIN6

- V

PIN7

) -200 80 +200 mV

I

CC

Supply current 15 22 29 mA

I

OMAX

Output sink/source current 1.5 2 mA

NOTE: Standard deviations are estimated from design simulations to represent manufacturing variations over the life of the product.

AC ELECTRICAL CHARACTERISTICS

Typical data and Min and Max limits apply at TA = 25°C and VCC = +5V, unless otherwise specified.

SA5223

SYMBOL

PARAMETER

TEST CONDITIONS

Min Typ Max

UNIT

R

T

Transresistance (differential output)

DC tested, RL = ∞, IIN = 0-1µA

90 125 160 kΩ

R

T

Transresistance
(single-ended output)

DC tested, RL = ∞, IIN = 0-1µA

45 62.5 80 kΩ

R

O

Output resistance
(differential output)

DC tested 140 Ω

R

O

Output resistance
(single-ended output)

DC tested 70 Ω

f

3dB

Bandwidth (-3dB) Test Circuit 1 110 150 MHz

R

IN

Input resistance DC tested 250

Ω

C

IN

Input capacitance

1

0.7

pF

C

INT

Input capacitance including Miller multiplied
capacitance

4.0

pF

∆R/∆V Transresistance power supply sensitivity V

CC1

= V

CC2

= 5 ±0.5V 3 %/V

∆R/∆T

Transresistance ambient temperature sensi­tivity

∆TA = T

A MAX

- T

A MIN

0.09

%/oC

I

IN

RMS noise current spectral density (referred
to input)

2

Test Circuit 2, f = 10MHz 1.17

pAń Hz

Ǹ

Integrated RMS noise current over the band-

Test circuit 2,

∆f = 50MHz

7

w

idth (ref

erred to inpu

t)

=

p

∆f = 100MHz 12

I

T

C

S

= 0.

1F

∆f = 150MHz 16

nA

T

∆f = 50MHz 8

CS = 0.4pF ∆f = 100MHz 13

∆f = 150MHz 18
PSRR Power supply rejection ratio (change in VOS) DC Tested, ∆VCC = ±0.5V –55 dB
PSRR Power supply rejection ratio

3

f = 1.0MHz, Test Circuit 3 –20 dB

V

OLMAX

Maximum differential output AC voltage Ii = 0–2mA peak AC 800 mV

dR

T

dt

AGC loop time constant parameter

4

10µA to 20µA steps 1 dB/ms

I

INMAX

Maximum input amplitude for output duty
cycle of 50 ±5%

Test circuit 4 +2 mA

tr, tfOutput rise and fall times 10 – 90% 2.2 ns

t

D

Group delay f = 10MHz 2.2 ns

NOTES:

1. Does not include Miller-multiplied capacitance of input device.

2. Noise performance measured differential. Single-ended output noise is higher due to CM noise.

3. PSRR is output referenced and is circuit board layout dependent at higher frequencies. For best performance use a RF filter in VCC line.

4. This implies that the SA5223 gain will change 1dB (10%) in the absence of data for 1ms (i.e., can handle bursty data without degrading Bit
Error Rate (BER) for 100,000 cycles at 100MHz).

Philips Semiconductors Product specification

SA5223Wide dynamic range AGC transimpedance amplifier(150MHz)

1995 Oct 24

4

TEST CIRCUITS

Test Circuit 1: Bandwidth

NETWORK ANALYZER

S-PARAMETER TEST SET

PORT1 PORT2

V

CC

.1uF

.1uF

50

Z

O

= 50Ω

OUT

OUT

IN DUT

0.1uF

R=1k

50

GND

1

SINGLE-ENDED

GND

2

R

TSE

+ 12.4 @ S21@ RIN,RIN+ 1k ) R

INSS

[ 1250W

Z

O

= 50Ω

SD00370

500

500

Test Circuit 2: Noise

SPECTRUM ANALYZER

V

CC

OUT

OUT

IN DUT

GND

2

GND

1

NE5209

50Ω

.1µF

.1µF

1.0µF

1.0µF

C

S

50Ω

SD00371

NETWORK ANALYZER

S-PARAMETER TEST SET

PORT1 PORT2

V

CC

.1uF

.1uF

OUT

OUT

IN DUT

GND

2

GND

1

50Ω

CAL

UNBAL.

0.1uF

NC

50Ω

BIAS TEE

5V

NHO300HB

TRANSFORMER

CONVERSION

LOSS = 9dB

100Ω
BAL.

SD00372

Test Circuit 3: PSRR

Test Circuit 4: Duty Cycle Distortion

PULSE GEN

OUT

OUT

DUT

OSCILLOSCOPE

A

B

Meaurement done using
differential wave forms

5V

0.1uF

.1µF

.1µF

GND

1

GND

2

ZO = 50Ω

Z

O

= 50Ω

IN

500Ω

500Ω

1kΩ

50Ω

OFFSET

SD00373

50% DUTY CYCLE